GE SCS2000 SIlPruf User Manual To The Cb3a00ef De94 4459 A5e9 9a91fa90140b

User Manual: GE SCS2000 to the manual

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Advanced Materials

GE - Advanced Materials, Silicones provides

versatile materials as the starting point for our

creative approach to ideas that help enable new

developments across hundreds of industrial and

consumer applications. We are helping customers

solve product, process, and performance problems;

our silanes, fluids, elastomers, sealants, resins,

adhesives, urethane additives, and other specialty

products are delivering innovation in everything

from car engines to biomedical devices. From

helping to develop safer tires and keeping

electronics cooler, to improving the feel of

lipstick and ensuring the reliability of adhesives,

our technologies and enabling solutions are at

the frontline of innovation.

GE imagination at work

SilPruf* SCS2000

silicone sealant & adhesive

Product Description

SilPruf SCS2000 sealant & adhesive

is a dual-purpose silicone and is a

candidate for use in both weathersealing

and structural glazing applications.

SilPruf SCS2000 sealant & adhesive is

a one-component, medium-modulus,

neutral cure silicone useful on a wide

variety of materials in new or remedial

applications. SilPruf SCS2000 sealant &

adhesive is supplied as a paste and upon

cure produces a durable, formed-in-place

silicone rubber joint sealant.

Typical Performance Properties

• Silicone Durability - cured silicone rubber exhibits excellent long

term resistance to natural weathering, including: ultraviolet radia-

tion, high and low temperatures and rain and snow, with negligible

change in elasticity.

• Proven Track Record - Improving global construction projects

since 1974; SilPruf SCS2000 sealant & adhesive demonstrates

superior sealing performance and long-lasting weatherability

in a variety of applications.

• Adhesion - primerless adhesion to many substrates and finishes.

May be considered a candidate for use with numerous construc-

tion-related materials, including: glass, polycarbonate, vinyl,

numerous plastics, treated and untreated wood, fluoropolymer

and powder coated paints, conversion-coated and anodized

aluminum, EIFS, brick, terra-cotta, ceramic and porcelain materi-

als, concrete and natural stones. Some finishes or substrates may

require a primer.

• ±50% Movement Capacity - can accommodate 50% movement

in both extension and compression and has excellent recovery

after cycling.

• High Performance Properties - SilPruf’s combination of high

tensile strength, high tear strength and the capacity to absorb

high deformations (elongation) make this product an outstanding

candidate for protective glazing designs and seismic applications.

• Stable Consistency (uncured state) - supplied as a lightweight

paste, the consistency of which remains relatively unchanged over

a wide temperature range. The paste is able to be easily gunned

and tooled under hot and cold conditions.

P. 02 GE - Advanced Materials

SilPruf* SCS2000 silcone sealant & adhesive

Typical Performance Properties (continued)

• Thermal Stability (cured state) - once cured, the material

remains elastic over a range of -55°F (-48°C) to 300°F (149°C) and

up to 400°F (204°C) under intermittent short-term exposure.

• Extended Work Life - designed to allow the user sufficient time

for placement and tooling.

• Low Sag or Slump - useful for application to horizontal, vertical

or overhead surfaces.

• Low VOC - significantly lower than the requirements of the U.S.

Green Building Council’s Leadership in Energy and Environmental

Design (L.E.E.D.) program.

• Product Versatility - full adhesive and chemical compatibil-

ity with GE - Silicones’ silicone elastomeric coating (SilShield*

SEC2400) and silicone pre-cured weatherstrip (UltraSpan*

US1100).

• Compatible with these GE - Silicones insulating glass products:

IGS3703, IGS3713-D1, IGS3729, IGS3723, IGS3733, IGS3743.

• Compatible with these GE - Silicones weatherproofing product

lines: SCS2700, SCS9000, SCS2800, US1100, SEC2400.

• Compatible with these GE - Silicones structural products

SSG4000, SSG4000AC, SSG4800J, SSG4400.

• Neutral cure byproduct with low odor.

Basic Uses

• SilPruf SCS2000 sealant & adhesive is useful as a weatherproof-

ing material when sealing between dissimilar or similar materials

in either new or remedial glazing and sealing applications.

• SilPruf SCS2000 sealant & adhesive is useful as a weatherproof-

ing sealant at window perimeters and punched openings.

• SilPruf SCS2000 sealant & adhesive is useful as a structural

glazing adhesive (project review required).

• SilPruf SCS2000 sealant & adhesive has been sucessfully tested

in protective glazing designs and may be considered a candidate

for such applications.

• SilPruf SCS2000 sealant & adhesive is useful as an adhesive in

panel stiffener applications.

• SilPruf SCS2000 sealant & adhesive is useful for adhering

GE - Silicones UltraSpan US1100 pre-cured silicone weatherstrip

product line.

Packaging

SilPruf SCS2000 sealant & adhesive is available in 10.1 fl. oz.

(299 ml) plastic caulking cartridges, 20.2 fl.oz. (597 ml) foil sausage

packs, 2 gallon plastic pails (2 gals. / 7.6 L) and 5 gallon plastic

pails (5 gals. / 18.9 L). Plastic cartridges are packaged as 24 units in

cardboard boxes and are dispensed using a single component hand

or air-pressured caulking gun. Cartridges and pails are designed

for convenience in shipping and are easily handled by warehouse

workers and mechanics on scaffolds and staging. Sausage packs

are designed to reduce volume of used containers compared to

conventional sealant cartridges, thereby reducing solid waste. The

use of sausage packs also boosts productivity by cutting typical

reloading time in half.

Colors

SilPruf SCS2000 sealant & adhesive is available in 8 standard colors,

6 special colors, and can be custom colored.

Grade Color

SCS2002 . . . . . . . . . . . .White

SCS2003 . . . . . . . . . . . .Black

SCS2004 . . . . . . . . . . . .Limestone

SCS2008 . . . . . . . . . . . .Light Grey

SCS2009 . . . . . . . . . . . .Aluminum Grey

SCS2010 . . . . . . . . . . . .Dark Grey

SCS2020 . . . . . . . . . . . .Precast White

SCS2097 . . . . . . . . . . . .Bronze

SCS2040 . . . . . . . . . . . .Earth Tone

SCS2041 . . . . . . . . . . . .Red Brick

SCS2046 . . . . . . . . . . . .Champagne

SCS2006 . . . . . . . . . . . .Antique Pink

SCS2100.0322 . . . . . . .Blue Spruce

SCS2100.0148 . . . . . . .Sandy Beige

P. 03 GE - Advanced Materials

SilPruf* SCS2000 silcone sealant & adhesive

Limitations

SilPruf SCS2000 sealant & adhesive is not recommended:

• For use underwater or in other applications where the product

will be in continuous contact with water.

• For use in food contact applications.

• When painting of the cured sealant is desired (unless appropriate

specialized paint products are used).

• For structural adhesion on bare metals or surfaces subject to

corrosion (i.e., mill aluminum, bare steel, etc.).

SilPruf SCS2000 sealant & adhesive should not be

applied or used:

• In structural glazing applications unless GE - Silicones has

reviewed shop drawings for applicability and has performed

adhesion and compatibility tests on project substrates, spacer

materials and all accompanying accessories. Review and test-

ing is done on a project-by-project basis. No blanket approval

is given by GE - Silicones for structural glazing applications.

Structural glazing industry guidelines (ASTM C1401) suggest that

drawings and details are to be reviewed by all parties involved in

the manufacture of an SSG system and for each building project.

• Under exceedingly hot or cold conditions (see Sealant

Application section for additional information).

• On wet, damp, frozen or contaminated surfaces.

• On excessively basic or acidic substrates.

• In exceedingly large structural cavities (see Sealant Application

section for additional information).

Precautions

• This material requires atmospheric moisture to cure from paste

to rubber and may not attain its listed final cured rubber proper-

ties when used in designs or applications where the silicone is

encapsulated and without access to atmospheric moisture.

• When sealing against natural stones, GE - Silicones recommends

that stain testing be performed prior to use to ascertain the visu-

al acceptability of the sealant-stone combination. GE - Silicones

recommends evaluation of SilPruf NB SCS9000 when sealing to

natural stones.

• Some materials that bleed plasticizers or oils can cause a dis-

coloration on the surface of sealants. When sealing to or over

items such as: rubberized gaskets, bituminous-based materials,

butyl or oil-based products, oily woods, tapes, etc., GE - Silicones

recommends that compatibility testing be performed prior to use

to confirm the suitability of the use of these materials when in

contact with each other.

• Silicone materials are hydrophobic in nature and if inadvertently

over-applied onto adjacent joint surfaces (even if removed imme-

diately), can create a waterproofing effect on some substrate

types when the substrate is wet. See section on Masking.

Technical Services

Complete technical information and literature are available

from GE - Silicones. Laboratory facilities and application engineer-

ing are available upon request from GE - Silicones.

P. 04 GE - Advanced Materials

SilPruf* SCS2000 silcone sealant & adhesive

Typical Properties – Supplied

Property Value(1) Test Method

Consistency Paste

Polymer 100% silicone

VOC 20 g/l WPSTM C1454

Work Life (tooling time) 20-30 minutes

Tack Free Time 3-4 hours (@ 72°F, 50% RH) ASTM C679

Sag/Slump 0.1” max. ASTM D2202

Typical Properties – Cured

Property Value(1) Test Method

Hardness, Durometer (Type A Indentor) 24 ASTM D2240

Ultimate Tensile Strength 341 psi (2.35 MPa) ASTM D412

Ultimate Elongation 715% ASTM D412

Tensile at 50% Elongation 47.0 psi (0.32 MPa) ASTM C1184

Tensile at 100% Elongation 73.2 psi (0.50 MPa) ASTM C1184

Ultimate Tensile Strength 140.5 psi (0.97 MPa) ASTM C1135

Ultimate Elongation 353% ASTM C1135

Tear Strength; die B 76.8 ppi ASTM D624

Shear Strength (@ 1/4” thickness) 121.4 psi (0.84 Mpa) ASTM C961

Peel Strength (average)

(21-day cure @ 75°F (21°C) 50% RH) 56.6 pli ASTM C794

Joint Movement Capability ±50% ASTM C719

Service Temperature Range (after cure) -55°F to +250°F (-48°C to 121°C)

Fire Endurance 2 hours (with backer) UL723, ASTM E814

Weathering and U.V. Resistance Excellent GE 20 yr. study

Cure Time (1/4” or 6 mm deep section)

@ 75°F (24°C) 50% RH 3-4 days

Full Cure (most common bead sizes) 10-14 days

(1) Average value. Actual value may vary.

Specifications

Typical property values of SilPruf SCS2000 sealant & adhesive

as supplied and cured are set forth in the tables below.

Typical product data values should not be used as specifica-

tions. Assistance with specifications is available by contacting

GE - Silicones at 1-800-255-8886.

P. 05 GE - Advanced Materials

SilPruf* SCS2000 silcone sealant & adhesive

Applicable Standards

SilPruf SCS2000 sealant & adhesive meets or exceeds the require-

ments of the following specifications:

American Society for Testing & Materials International

• ASTM C920 Standard Specification for Elastomeric Joint Sealants;

Type S, Grade NS, Class 50, Use A, G, M, O

• ASTM C1184 Standard Specification for Structural Silicone

Sealants;

Type S, Use G & O

U.S. Federal Specifications:

(widely referenced but cancelled Sept. 1996)

• TT-S-001543A Sealing Compound: Silicone Rubber Base (for

Caulking, Sealing & Glazing in Buildings and Other Structures)

• TT-S-00230C Sealing Compound: Elastomeric Type, Single

Component (for Caulking, Sealing & Glazing in Buildings and

Other Structures)

Canadian General Standards Board (currently inactive)

CGSB-19.13-M87 Sealing Compound, One-Component, Elastomeric,

Chemical Curing

SilPruf SCS2000 sealant & adhesive

carries SWR Institute validation

@ ±50% movement.

Suggested References

In addition to the guidelines provided on this datasheet,

GE - Silicones recommends that designers and users of SilPruf

SCS2000 sealant & adhesive familiarize themselves with the latest

editions of following industry guidelines and best practices:

1.) ASTM C1193 Standard Guide for Use of Joint Sealants.

2.) ASTM C1481 Standard Guide for Use of Joint Sealants with

Exterior Insulation & Finish Systems (EIFS).

3.) ASTM C1472 Standard Guide for Calculating Movement and

Other Effects When Establishing Sealant Joint Width.

4.) ASTM C1401 Standard Guide for Structural Sealant Glazing

5.) SWR Institute’s Applying Liquid Sealants Applicator Training

Program.

Joint Designs and Dimensions - WEATHERSEALING

Joint Movement - The dimensions of joints in typical construction

applications change daily as a result of solar heat gain and build-

ing sway, and throughout the year due to seasonal changes. The

movement in a sealant bead installed on the sun-side of a building

or during the hottest portion of the day will be almost entirely in

extension during the cold season or cycle; while the movement of a

bead installed during the coldest condition will be almost entirely in

compression during the hotter season or cycle. In addition to these

above movements, the designer should consider the effect of con-

struction tolerances in his/her project to minimize the occurrence

of over-sized or under-sized joints during construction. All moving

(dynamic) joints must be designed so as not to allow three-sided

adhesion of the sealant to occur (reference ASTM C1193). Three-

sided adhesion hinders the ability of the sealant to extend and

compress freely as desired and can lead to early joint failure.

Joint Width - When using SilPruf SCS2000 sealant & adhesive, the

designed joint width must be at least twice the total anticipated

joint movement. For example, if the total anticipated movement

in an expansion joint in which SilPruf SCS2000 sealant & adhesive

is to be installed is 1/4”, the designed joint width must be at least

1/2”. The designer may want to consider additional width to

accommodate construction tolerances (reference ASTM C1472).

Large panels or lites should allow a minimum width of 1/4” for the

sealant bead, mostly to allow for a proper installation (very small/

narrow beads become difficult to install and can accommodate

less movement). Glazing of plastic or larger-sized metal panels may

require larger than usual joint widths due to the greater movement

potential (higher coefficients of thermal expansion). Consult with

GE - Silicones Technical Services for recommendations on large or

unusual applications.

P. 06 GE - Advanced Materials

SilPruf* SCS2000 silcone sealant & adhesive

Joint Designs and Dimensions - WEATHERSEALING

(continued)

Butt Jointing - A thin installation of silicone sealant can better

accommodate more movement than a deep installation, as the

deeper bead will result in additional stress being imposed on both

the sealant and the bonding surfaces during joint movement.

Figure 1 illustrates the general guidelines for installation of SilPruf

SCS2000 sealant & adhesive into a typical butt joint configuration

of widths up to 2”.

1.) The recommended sealant profile is an hourglass shape with the

depth of the sealant over the crown of the backer rod to be no

thinner than 1/8” and no thicker than 3/8”, and

2.) A minimum of 1/4” of adhesive bonding contact must be made

to all surfaces to which the sealant is intended to adhere.

When used in joints exceeding 2” in width:

3.) The recommended sealant profile is an hourglass shape with the

depth of the sealant over the crown of the backer rod to be no

thinner than 1/4” and no thicker than 3/8”, and

4.) A minimum of 3/8” of adhesive bonding contact must be made

to all surfaces to which the sealant is intended to adhere.

Figure 1

Non-gassing polyethylene, polyolefin or polyurethane foam rod is

the recommended back-up material for use with SilPruf SCS2000

sealant & adhesive. If the joint is too shallow to allow foam rod, use

a polyethylene tape (as a bond breaker to eliminate three-sided

adhesion). On EIFS and porous substrate applications, a closed cell

backer rod is recommended (open cell backer materials absorb and

hold water which can affect long-term sealant adhesion on these

materials). Backer rod should be 25-50% greater (confirm with

manufacturer of backer rod as to type selected) than the width of

the joint, thereby providing continuous pressure against the joint

walls, and expanding and contracting with the joint movement

without pushing the sealant out of the joint during the compression

cycle or falling away during the extension cycle. Rubber backup

materials may stain the sealant and are not recommended, unless

tested and verified for compatibility.

Joint Designs and Dimensions -

STRUCTURAL GLAZING

• Silicone contact width and thickness (see Figure 2) will vary by

project with the design wind load and glass size.

• Contact Width can be calculated using the following formula:

[Design Wind Load (PSF) x Longest Short Span of Glass or Panel

(Ft.)] divided by 480.

• A minimum sealant thickness of 1/4” (7mm) between substrates

is required to accommodate thermal expansion and contrac-

tion (see Figure 3) of most systems and should be used in order

to assure that sealant can be injected into the structural cavity

obtaining full contact with both the glass and metal surfaces

while remaining free of air voids. Greater joint thickness may

be required to accommodate movement in some larger-sized

SSG systems. GE - Silicones can be contacted to assist in deter-

mination of proper joint thickness to accommodate expected

movement in structurally glazed applications.

The following materials are required to be submitted to

GE - Silicones to receive suggestions for

the use of SilPruf SCS2000 sealant & adhesive.

• Architectural and shop drawings for review and comment.

• Design wind load requirement(s) for project.

• Glass or panel sizes.

• Production samples of metal, glass, gaskets, spacers and setting

blocks with type and manufacturer identified.

• Specification and/or identification of paint or finish to which

SilPruf SCS2000 sealant & adhesive is intended to adhere

(i.e., 215-R1 anodized or if paint; manufacturer, finish system

and ID#).

Joint Backer Materials

Backer materials, typically backer rod, provide the following

benefits to aide in the correct application of SilPruf SCS2000

sealant & adhesive.

1.) To control and provide the desired sealant depth.

2.) Create a formed joint cavity that allows for the desired

hourglass sealant shape.

3.) Provide a firm backup which helps attain full wetting of the

substrates when the sealant is tooled.

4.) Act as a bond breaker to eliminate adhesion on the backside of

a joint (three-sided adhesion).

1/4'' MINIMUM

ADHESION

CONTACT

DEPTH OVER

CROWN OF

BACKER 1/8'' MIN

TO 3/8'' MAX

JOINT WIDTH

P. 07 GE - Advanced Materials

SilPruf* SCS2000 silcone sealant & adhesive

Joint Designs and Dimensions -

STRUCTURAL GLAZING (continued)

GE - Silicones will provide the following, after reviewing the

materials above:

• Determination as to whether the submitted joint dimensions

meet the minimum design criteria necessary for the use of

SilPruf SCS2000 sealant & adhesive.

• Short-term adhesion data using (typically) the ASTM C794

and/or ASTM C1135 test method. Other test methods may be

employed.

• Short-term compatibility test results on gaskets, spacers

and setting blocks and other accessories per ASTM C1087

or GE - Silicones test method for compatibility.

• Information regarding suggested primers, when required.

Figure 2

Figure 3: Movement from thermal expansion and

contraction and/or glass rotation

HORIZONTAL

SECTION

CONTACT

WIDTH

DEPTH

(THICKNESS)

STRUCTURAL

SILICONE

GE - Silicones will not:

• Design sealant joints.

• Provide comments on the structural integrity of overall framing

system(s).

• Provide long-term performance data.

The design professional has final responsibility for the determina-

tion of structural sealant joint dimensions based on project

conditions, design wind load(s), glass or panel sizes, anticipated

thermal, seismic or other movement of the system.

The ASTM C1401 Standard Guide for Structural Sealant Glazing

provides a thorough overview of design topics and information for

use in SSG systems.

P. 08 GE - Advanced Materials

SilPruf* SCS2000 silcone sealant & adhesive

Installation

Sealants may not adhere or maintain long-term adhesion to

substrates if the surface is not prepared and cleaned properly

before sealant application. Using proper materials and following

prescribed surface preparation and cleaning procedures is vital

for sealant adhesion. IN ALL CASES IT IS IMPORTANT TO CONFIRM

THE ACCEPTIBILITY OF EACH SEALANT-SUBSTRATE COMBINATION

WITH A LAB OR SITE ADHESION TEST PRIOR TO PROCEEDING WITH

PROJECT INSTALLATION. GE - Silicones can provide lab and field

adhesion testing information and suggestions to user upon request.

Surface Preparation

Porous Materials (Concrete, Masonry, Brick, Stone, etc.)

• Joints must be clean, dry and sound prior to application of

the sealant. All contaminants, impurities, or other adhesion inhib-

itors (such as moisture/frost, oils, concrete form release agents,

old sealants, asphalt and other surface treatments, etc.) must

be removed from the surfaces to which the sealant is intended

to adhere.

• Clean where necessary by wire brush, mechanical abrading,

grinding, sanding, saw cutting, blast cleaning (sand or water),

or a combination of these methods to provide a stable clean

surface for sealant application.

• Remove dust and other remaining loose particles with a soft

bristle brush or by using an oil-free air blow.

• Polished stone surfaces and smooth sawn edges can be cleaned

using a solvent dampened rag (allow sufficient time for solvent

to evaporate prior to application of the sealant). When handling

solvents, refer to manufacturer’s MSDS for information on han-

dling, safety and personal protective equipment.

• Cleaning of surfaces should be done within 1 to 2 hours of when

the sealant is to be applied.

• Since porous materials can absorb and retain moisture, it is

important to confirm that substrates are dry prior to application

of the sealant.

Non-Porous Materials (Glass, Metals, Plastics, Ceramics, etc.)

• Clean by using a two-rag wipe technique → wet one rag with

solvent and wipe the surface with it, then use the second rag

to wipe the wet solvent from the surface BEFORE it evaporates

(allowing the solvent to dry on the surface without immediately

wiping with a second cloth can negate the cleaning procedure

because the contaminants may simply be re-deposited as the

solvent dries). In all cases where used, solvents should be wiped

dry with a clean, white cloth or other lint-free wiping materials.

Change the cleaning rags frequently, as they become dirty. It is

easier to see the dirt accumulating on the rag if white rags are

used. Do not dip used cleaning rags into the cleaning solvent as

this can contaminate the solvent (cleaning with contaminated

solvent can result in sealant adhesion issues). Always use clean

solvent-resistant containers for solvent use and storage.

• When cleaning deep, narrow structural glazing cavities, wrap

the cleaning cloth around a clean, narrow-blade putty knife. This

permits force to be applied to the cleaned surface.

• Isopropyl Alcohol (IPA) is a commonly-used solvent and has

proven useful for most non-porous substrates encountered in

architectural construction applications. Xylene and Toluene have

also been found useful on many substrates. When handling

solvents, refer to manufacturer’s MSDS for information on

handling, safety and personal protective equipment.

• Architectural coatings, paints and plastics should be cleaned

with a solvent approved by the manufacturer of the product or

which does not harm or alter the finish.

• Cleaning of surfaces should be done within 1 to 2 hours of when

the sealant is to be applied.

• Difficult or nearly impossible to see on a joint substrate, frost is

likely to develop on substrates when temperatures drop near the

freezing point. Since frost and moisture will interfere with proper

sealant adhesion, it is important to confirm that substrates are

dry prior to application of the sealant.

P. 09 GE - Advanced Materials

SilPruf* SCS2000 silcone sealant & adhesive

Surface Preparation (continued)

Exterior Insulation and Finish Systems (EIFS)

• The use of an appropriate silicone primer is required on all EIFS

substrates. Consult GE - Silicones Technical Services for sealant-

primer-substrate recommendations.

• Confirm with the EIFS supplier which finish the sealant should be

applied to (i.e., base coat or base coat with EIFS primer).

• All EIFS surfaces must be clean, dry and sound and in an accept-

able condition to receive sealant. Confirm with the EIFS supplier

or project architect or consultant, what joint conditions are

considered acceptable for sealant installation to proceed. If

unacceptable conditions are found, cease installation of sealant

until corrections are made.

• To clean EIFS, lightly abrade the joint surfaces using a synthetic

brush or pad and then remove dust and other remaining loose

particles with a soft bristle brush or using an oil-free air blow.

• Cleaning of surfaces should be done within 1 to 2 hours of when

the sealant is to be applied.

• Since EIFS materials can absorb and retain moisture, it is impor-

tant to confirm that the EIFS materials are dry prior to applica-

tion of the sealant.

Priming

SilPruf SCS2000 sealant & adhesive attains primerless adhesion to

many commonly encountered construction materials. However,

some materials with variable surface characteristics may require

the use of a primer to help obtain durable long-term adhesion. Prior

to use, trial applications should be made to check adhesion to the

specific materials to be used on the project. See the GE - Silicones

primer datasheets for product specific information on use and prim-

ing instructions. PRIMER APPLICATION IS NOT A SUBSTITUTE FOR

SURFACE PREPARATION. Consult GE - Silicones Technical Services for

sealant-primer-substrate recommendations.

CAUTION: Primers may contain solvents. When handling solvents,

refer to manufacturer’s MSDS for information on handling, safety

and personal protective equipment.

Masking

The use of masking tape is recommended where appropriate to

ensure a neat job and to protect adjoining surfaces from over-

application of sealant. Masking tape can prevent contact of seal-

ant with adjoining surfaces that otherwise would be permanently

marred or damaged by such contact or by cleaning methods

required to remove sealant systems. When tooling, use care not to

spread the sealant over the face of the substrates adjacent to the

joint or masking as the silicone can be extremely difficult to remove

on rough or porous substrates. Do not allow masking tape to touch

clean surfaces to which the silicone sealant is to adhere (adhesive

on masking tape can interfere with adhesion of silicone). Masking

tape should be removed immediately after tooling the sealant and

before the sealant begins to skin over (tooling time).

Sealant Application - WEATHERSEAL

• Apply sealant in a continuous operation, horizontally in one

direction and vertically from the bottom to the top of the joint

opening, applying a positive pressure adequate to properly fill

and seal the joint width.

• Tool or strike the sealant with a concave tool applying light

pressure to spread the material against the back-up material

and the joint surfaces to ensure a void-free application.

• In glazing applications, tool the sealant at the sill so that

precipitation and cleaning solutions will not pool.

• Excess sealant should be cleaned from glass, metal and plastic

surfaces while still uncured. On porous surfaces the excess

sealant should be allowed to progress through the initial cure

or set-up. It should then be removed by abrasion or other

mechanical means.

• Due to the smooth consistency of SilPruf SCS2000 sealant &

adhesive, tooling agents such as water, soap, or detergent

solutions are not necessary or recommended. Dry tooling is

recommended.

• Sealant application is not recommended when the temperature

is below 40°F (4°C) or if frost or moisture is present on the

surfaces to be sealed.

• Application of SilPruf SCS2000 sealant & adhesive is not recom-

mended to surfaces above 122°F (50°C).

• The cure rate of this product is dependent upon temperature

and the availability of atmospheric moisture. Under Standard

Conditions (relative humidity of 50 ±5% at an air temperature of

73.4 ±2°F [23 of ±1°C]) this material can attain a cured thickness

of 2-3 mm per 24 hours (assuming ample access to atmospheric

moisture). As temperature decreases, the cure rate slows down

(and vice versa). Low moisture environments will also reduce the

cure rate. Near-confined spaces which limit the overall access to

atmospheric moisture will cure only from that surface which has

access to the atmosphere. Colder temperatures can significantly

increase cure times and can open the possibility of sealant

irregularities if joint movement occurs while sealant is not fully

cured. The following reference provides additional information on

Movement-During-Cure of sealant joints: ASTM C1193 - Standard

Guide for Use of Joint Sealants; section 12.5.

P. 10 GE - Advanced Materials

SilPruf* SCS2000 silcone sealant & adhesive

Sealant Application - STRUCTURAL GLAZING

• Apply the sealant by pushing the bead ahead of the nozzle

and making sure that the entire cavity is filled. Tooling

should be done neatly, forcing the sealant into contact

with the sides of the joint, thus helping to eliminate any

internal voids and assuring good substrate contact. AIR

POCKETS OR VOIDS WITHIN THE STRUCTURAL CAVITY ARE

NOT ACCEPTABLE.

• Due to the smooth consistency of SilPruf SCS2000 sealant

& adhesive, tooling agents such as water, soap or deter-

gent solutions are not necessary or recommended. Dry

tooling is recommended.

• Sealant application is not recommended when the

temperature is below 40°F (4°C) or if frost or moisture is

present on the surfaces to be sealed.

• SilPruf SCS2000 sealant & adhesive works best when

applied to surfaces below 122°F (50°C).

• SilPruf SCS2000 sealant & adhesive should not be applied

in totally confined spaces since the sealant requires expo-

sure to air a to cure properly and develop typical proper-

ties. In a typical SSG cavity, cure depths up to 3/4” from an

air interface will generally cure satisfactorily and reach

maximum properties within several days. Cure depths >

3/4” may take significantly longer time to cure and when

applied in a single application may not cure satisfactorily.

Consult GE - Silicones technical services for additional

information on depth of cure for this product.

Method of Application

SilPruf SCS2000 sealant & adhesive is easily dispensed directly

from cartridges and foil sausage packs using standard caulk-

ing guns or from 2 gallons pails using standard bulk caulking

gun equipment. The sealant may also be dispensed from

55 gallon drums with pumping equipment.

HANDLING AND SAFETY

Material Safety Data Sheets are available @

www.GESilicones.com or, upon request, from a

GE - Silicones representative. Similar information

for solvents and other chemicals used with GE - Silicones

products may be obtained from your suppliers.

Storage Conditions and Warranty Period

SilPruf SCS2000 sealant & adhesive should be stored in the original

unopened container at 80°F (27°C) or lower. All users of this material

are recommended to obtain and retain any invoices or other docu-

mentation relating to delivery and to manage their inventory on

a FIRST IN / FIRST OUT basis. Applicable warranty information can

be obtained from GE - Silicones, Waterford, NY, the GE - Silicones’

sales office nearest to you, or an authorized GE - Silicones’ product

distributor.

Availability

Information on ordering can be obtained from GE - Silicones,

Waterford, NY, the GE - Silicones’ sales office nearest to you, or

an authorized GE - Silicones’ product distributor. Forinformation

regarding cost, contact your local distributor or GE - Silicones

Territory Manager. Our Customer Service number is: 877-943-7325.

Government Requirement

Prior to considering use of a GE - Silicones product in fulfilling any

government requirement, please contact the Government and

Trade Compliance office at: 413-448-4624.

SilPruf* SCS2000 silcone sealant & adhesive

P. 11 GE - Advanced Materials

Emergency Service

GE - Silicones maintains an around-the-clock emergency service for its products. The American Chemistry Council (CHEMTREC),

Transport Canada (CANUTEC), and the Chemical Emergency Agency Service also maintain an around-the-clock emergency service

for all chemical products:

Location GE - Silicones Products All Chemical Products

Mainland U.S., Puerto Rico 800.809 9998 CHEMTREC: 800.424.9300

Alaska, Hawaii 304.926.8418 (collect) CHEMTREC: 800.424.9300

Canada 304.926.8418 (collect) CANUTEC: 613.996.6666 (collect)

or CHEMTREC: 800.424.9300

Europe, Middle East, Africa +32.(0)14.58.45.45 (Belgium) CHEMTREC: +1-703.527.3887 (collect)

Latin America, Asia/Pacific, +304.926.8418 (collect) CHEMTREC: +1-703.527.3887 (collect)

all other locations worldwide

At sea Radio U.S. Coast Guard, which can directly

contact GE - Silicones at 800.809.9998 or

CHEMTREC at 800.424.9300.

DO NOT WAIT. Phone if in doubt. You will be referred to a specialist for advice.

Patent Status

SilPruf SCS2000 sealant & adhesive is the subject of one or more

pending U.S. patent applications.

Nothing contained herein shall be construed to imply the non-

existence of any relevant patents or to constitute the permission,

inducement or recommendation to practice any invention covered

by any patent, without authority from the owner of the patent.

Product Safety

Customers considering the use of any of GE - Silicones products

should consult the latest Material Safety Data Sheets and labels for

product safety information. Customers must evaluate GE - Silicones

products and make their own determination as to fitness of use

in their particular applications. For Material Safety Data Sheets

contact the GE - Silicones sales office nearest you. Customers must

ensure that all applicable federal, state, and local requirements

have been met before handling any of the products mentioned

in the text.

*SilPruf, SilShield, UltraGlaze and UltraSpan are trademarks of General Electric Company.

161-005-10E-GL

4/06

THE MATERIALS, PRODUCTS AND SERVICES OF THE BUSINESSES MAKING UP THE ADVANCED MATERIALS UNIT OF GENERAL ELECTRIC COMPANY, ITS SUBSIDIARIES AND AFFILIATES, ARE SOLD SUBJECT TO GE - ADVANCED

MATERIALS’ STANDARD CONDITIONS OF SALE, WHICH ARE INCLUDED IN THE APPLICABLE DISTRIBUTOR OR OTHER SALES AGREEMENT, PRINTED ON THE BACK OF ORDER ACKNOWLEDGMENTS AND INVOICES, AND AVAILABLE

UPON REQUEST. ALTHOUGH ANY INFORMATION, RECOMMENDATIONS, OR ADVICE CONTAINED HEREIN IS GIVEN IN GOOD FAITH, GE - ADVANCED MATERIALS MAKES NO WARRANTY OR GUARANTEE, EXPRESS OR IMPLIED, (i) THAT

THE RESULTS DESCRIBED HEREIN WILL BE OBTAINED UNDER END-USE CONDITIONS, OR (ii) AS TO THE EFFECTIVENESS OR SAFETY OF ANY DESIGN INCORPORATING ITS PRODUCTS, MATERIALS, SERVICES, RECOMMENDATIONS OR

ADVICE. EXCEPT AS PROVIDED IN GE - ADVANCED MATERIALS STANDARD CONDITIONS OF SALE, GE - ADVANCED MATERIALS BUSINESS AND ITS REPRESENTATIVES SHALL IN NO EVENT BE RESPONSIBLE FOR ANY LOSS RESULTING

FROM ANY USE OF ITS MATERIALS, PRODUCTS OR SERVICES DESCRIBED HEREIN. Each user bears full responsibility for making its own determination as to the suitability of GE - Advanced Materials’ materials, services, recommendations,

or advice for its own particular use. Each user must identify and perform all tests and analyses necessary to assure that its ﬁ nished parts incorporating GE - Advanced Materials’ products, materials, or services will be safe and suitable

for use under end-use conditions. Nothing in this or any other document, nor any oral recommendation or advice, shall be deemed to alter, vary, supersede, or waive any provision of GE - Advanced Materials’ Standard Conditions of Sale

or this Disclaimer, unless any such modiﬁ cation is speciﬁ cally agreed to in a writing signed by GE - Advanced Materials. No statement contained herein concerning a possible or suggested use of any material, product, service or design

is intended, or should be construed, to grant any license under any patent or other intellectual property right of General Electric Company or any of its subsidiaries or afﬁ liates covering such use or design, or as a recommendation for

the use of such material, product, service or design in the infringement of any patent or other intellectual property right.

Principal Locations

Regional Information Phone Fax

North America

World Headquarters

187 Danbury Road

Wilton, CT 06897, USA 800.295.2392 607.754.7517

Latin America

Rodovia Eng. Constâncio Cintra, Km 78,5

Itatiba, SP – 13255-700

Brazil + 55.11.4534.9650 + 55.11.4534.9660

Europe, Middle East, Africa and India