Stain Blocking Paints & Lacquers 2086

User Manual: 2086

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Creative Polymer Solutions

SYNTRAN® Cationic Acrylic Copolymers
For Waterborne Stain-Blocking Paints and Lacquers

•

Exceptional Stain Blocking Performance:
Nicotine Stains, Wood Extractives, Graffiti, etc.
•

Environmentally Friendly
•

•

Excellent Adhesion
High Solid Content

Creative Polymer Solutions

Stain Blocking Application Fields
Nicotine Stains

Wood

Graffitis

Water Stains

Cork

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Creative Polymer Solutions

SYNTRAN® Cationic Acrylic Copolymers
For Waterborne Stain-Blocking Paints and Lacquers

INTERPOLYMER is an industry leading manufacturer of water-based polymers for a wide variety of
markets. A new product line is now available for use as functional binders in specialty paints.
INTERPOLYMER has designed aqueous SYNTRAN acrylic, cationic polymer dispersions that can be
used in high quality primers, which block difficult stains from bleeding through to the surface.
SYNTRAN polymer dispersions provide environmentally friendly, cost-effective, quick and permanent
solutions to a variety of severe staining problems.

Fields of Application
• Waterborne Primers with Universal Stain-Blocking Performance
• Waterborne Primers and Topcoats for Graffiti Blocking
• Waterborne Tannin Blocking Wood Coatings

Typical Physical Properties
SYNTRAN

Solids
[wt.-%]

Viscosity
[mPas]

pH

MFT

6301

35

300

6.0

<10oC

FX30-20 *

35

300

6.0

22oC

Remarks

• Increased hardness
• Improved soiling and
scratch resistance

* Development product

Disclaimer:
Due to its cationic nature, formulations based on SYNTRAN cationic polymers should not be mixed with paints based on anionic binders. SYNTRAN cationic polymers are not stable at alkaline pH.
SYNTRAN 6301 and FX30-20 both contain formic acid. Formulated coatings should not be used on metal or other surfaces
subject to acid corrosion as the coating is drying. After curing, the coating is safe for all surfaces.

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Features & Benefits
√

Excellent, permanent blocking of tannin and other colored wood extractives.

√

Highly efficient, permanent blocking of difficult stains, such as:

•
•
•

Nicotine
Marking pens
Water colors

•
•
•

Ball-point pens
Various food stains
Fat and cooking oil

√

Good performance under critical conditions of high humidity and high temperature.

√

Suitable for paints for the renovation of heavily used, stained locations like restaurants, kitchens,
bath rooms or public rooms.

√

Easily formulated into highly opaque coatings; repair difficult stain damage with one coat.

√

Reactive pigments (such as zinc oxide) are not required.

√

Good adhesion to a wide variety of substrates, such as:

•
•
•

Wood
Gypsum board

•
•

Mineral surfaces
Wall paper

Cork

√

Coatings can be formulated with high solids content.

√

Low minimum film forming temperature allowing low VOC formulations.

√

Suitable for pigmented and clear coatings.

√

Water based, environmentally friendly, low odor coatings.

√

SYNTRAN FX30-20 coatings are readily sandable and offer excellent dirt pickup resistance.

√

Excellent cost performance and user convenience versus solvent based coatings.

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Creative Polymer Solutions
TECHNICAL INFORMATION

SYNTRAN® 6301
SYNTRAN 6301 is a water-based, cationic acrylic copolymer dispersion.

SYNTRAN 6301 is recommended for stain blocking paints and primers. It has excellent performance
in blocking nicotine and water stains. It is also suitable for stain blocking primers for wood and cork.

Formulations based on SYNTRAN 6301 have the following properties:

•
•
•
•
•
•

Excellent, universal stain blocking properties
Excellent adhesion to a wide variety of substrates
Very good blocking of wood extractives
Very good nicotine barrier properties
Reactive pigments are not required
APE and co-solvent free

Typical Physical Properties
Appearance
Solids
pH at 22oC
MFT
Viscosity Brookfield
Density at 20oC
Heat stability at 52oC
Freeze thaw stability

turbid, yellowish
35%
6
< 10oC
300 cps
1.05 g/cm3
unchanged after 30 days
unchanged after 3 cycles

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Storage
SYNTRAN 6301 is adequately protected against microbial attack as supplied, but not when it is
diluted with water and other additives. Formulations containing SYNTRAN 6301 require preservatives.
SYNTRAN 6301 can be stored in original sealed containers and properly monitored storage tanks
at ambient temperature for at least 6 months.

Safety
Please refer to the Material Safety Data Sheet.

Handling
All contact with the eyes and prolonged contact with the skin should be avoided.
Safety glasses must be worn when handling this product in its concentrated form.

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Creative Polymer Solutions
TECHNICAL INFORMATION

SYNTRAN® FX30-20
Developmental Product

SYNTRAN FX30-20 is a cationic, aqueous acrylic copolymer dispersion.

SYNTRAN FX30-20 is suitable for stain blocking wood primers. It also performs
very well in nicotine barrier coatings.

Formulations based on SYNTRAN FX30-20 have the following properties:

•
•
•
•
•
•
•
•

Excellent, universal stain blocking properties
Excellent dirt pickup resistance
Excellent adhesion to a wide variety of substrates
Very good blocking of wood extractives
Very good nicotine barrier properties
Reduces blistering and adhesion problems on certain types of wood
Coatings are readily sandable
APE free

Typical Physical Properties
Appearance
Solids
pH at 22oC
MFT
Viscosity Brookfield
Density at 20oC
Heat stability at 52oC
Freeze thaw stability

milky, yellowish-white
35%
6.0
20 + 3oC
300 cps
1.06 g/cm3
unchanged after 30 days
unchanged after 3 cycles

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Creative Polymer Solutions
Storage
SYNTRAN FX30-20 is adequately protected against microbial attack as supplied, but not when it is
diluted with water and other additives. Formulations containing SYNTRAN FX30-20 require preservatives.
SYNTRAN FX30-20 can be stored in original sealed containers and properly monitored storage tanks
at ambient temperature for at least 6 months.

Safety
Please refer to the Material Safety Data Sheet.

Handling
All contact with the eyes and prolonged contact with the skin should be avoided.
Safety glasses must be worn when handling this product in its concentrated form.

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Creative Polymer Solutions

Starting Point Formulations

SYNTRAN® 6301
F-31-002-03

Clear Primer Formulation

Total 28 wt.%

F-31-001-01
Total 44 wt.%

Pigmented Primer Formulation based on
BaS04 as filler
PVC = 25%

F-31-003-02
Total 60 wt.%

Pigmented Primer/Topcoat Formulation
based on BaS04 as filler
PVC = 40%

F-31-004-01
Total 60 wt.%

Excellent Coverage

Pigmented Primer/Topcoat Formulation
based on Kaolin and Talc as filler
PVC = 54%

Excellent Coverage

SYNTRAN® FX30-20
F-43-048-01
Total 27 wt.%

Clear Tannin Blocking or Graffiti Blocking
Coating Formulation

Formulations do not require reactive pigments

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Creative Polymer Solutions

CLEAR PRIMER FORMULATION BASED ON SYNTRAN® 6301
Formulation F-31-002-03 28% N.V.
Prevents bleeding of water-soluble stains: nicotine stains, wood extractives. Excellent adhesion to a variety of substrates.

Mix in Order Listed:
Amount (g)
Water

19.6

SYNTRAN 6301 @ 35%1

75.0

Cationic, acrylic, stain-blocking binder

Byk-3332

0.2

Substrate wetting agent

AGITAN 2993

0.7

Defoamer

4.5
_____
100.0

Thickener

Borchigel PW254
Total:

Preparation:
Add all ingredients in listed order and mix in a dissolver for ca. 20 minutes.
pH: ca. 5.5

1
2
3
4

INTERPOLYMER
BYK-Chemie USA, Wallingford, Tel: 203-265-2086
Ultra Additives, Bloomfield, Tel: 973-279-1306.
Lanxess Corp., Pittsburg, Tel: 800-526-9377, e-mail:borchers-info@lanxess.com

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PIGMENTED PRIMER FORMULATION BASED ON SYNTRAN® 6301
Formulation F-31-001-01 44% N.V.
Universal Stain Blocking Primer: Nicotine stains, wood extractives. Specially
recommended to block nicotine stains.

Mix in Order Listed:
Amount (g)
Grind:
Water

20.0
1

Surfynol 104 E
1

Surfynol GA

Kronos 2190

2
3

Sachtleben Micro
4

Aerosil 200

0.7

Wetting agent

0.4

Wetting agent

10.0

Pigment

12.5

Filler

0.9

Thickener

Let down:
SYNTRAN 6301 @ 35%5

52.0

6

Rheolate 255
7

Byk 025

7

Byk 346

8

Wet KL 245
Water

Borchigel PW25

Cationic, acrylic binder

0.8

Thickener

0.4

Defoamer

0.8

Wetting agent

0.9

Wetting agent

0.8
9

Total

3.2
____
103.4

Thickener

Preparation:
Grind: Add all ingredients in listed order and grind at ca. 8 m/s for 20 minutes, until a fineness
of grind < 10 µm. Let down: Add under stirring and mix for ca. 20 minutes. Then mix grind and
let down for 10 minutes at ca. 8m/s.
1
2
3
4
5
6
7
8
9

Surfynol: Air Products.
Kronos Inc., Cranbury, Tel: 609-860-6200.
Sachtleben Corp., White Plains, Tel: 914-539-4068.
Aerosil: Degussa.
INTERPOLYMER.
Elementis Specialties, Highstown, Tel: 609-443-2000.
Byk: Chemie USA, Wallingford, Tel: 203-265-2086.
Tego-Degussa Goldschmidt, Hopewell, Tel: 800-446-1809.
Lanxess Corp., Pittsburg, Tel: 800-526-9377, e-mail:borchers-info@lanxess.com .
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Creative Polymer Solutions

PIGMENTED PRIMER/TOPCOAT FORMULATION BASED ON SYNTRAN® 6301
Formulation F-31-003-02 60% N.V.
Excellent universal stain blocking performance. Specially recommended to block
wood extractives, nicotine stains, graffiti, etc. High solids, excellent coverage.
“2 in 1”: Primer + Topcoat.

Mix in Order Listed:
Amount (g)
Grind:
Water

6.4

EFKA-45801

5.3

Kronos 21902

20.0

Pigment

Sachtleben Micro3

20.0

Filler

EFKA-25261

0.3

Wetting agent

Defoamer

Let down:
SYNTRAN 6301 @ 35%4

43.6

Cationic, acrylic binder

Rheolate 2555

3.8

Thickener

EFKA-25261

0.6

Defoamer

Total

____
100.0

Preparation:
Grind: Add all ingredients in listed order and grind for ca. 12-14 m/s for 30-60 minutes, until a
fineness of grind < 10 µm. Let down: Add all ingredients in listed order under stirring and mix
for 5 minutes at ca. 10 m/s. Then mix grind and let down for 5 minutes at ca. 8 m/s.

1
2
3
4
5

EFKA-Ciba Specialty Chemicals, Newport, Tel: 800-355-2422.
Kronos Inc., Cranbury, Tel: 609-860-6200.
Sachtleben Corp., White Plains, Tel: 914-539-4068.
INTERPOLYMER.
Elementis Specialties, Hightstown, Tel: 609-443-2000.

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Creative Polymer Solutions

PIGMENTED PRIMER/TOPCOAT FORMULATION BASED ON SYNTRAN® 6301
Formulation F-31-004-01 60% N.V.
Universal Stain Blocking Paint. Wood Extractives, Nicotine Stains, etc. High solids.
Excellent Coverage. “2 in 1”: Primer + Topcoat.

Mix in Order Listed:
Amount (g)
Grind:
Water

14.9

EFKA-45801

5.1

Kronos 21902

21.5

Pigment

Huber 70 C3

13.8

Kaolin filler

Steabright4

6.5

Talc filler

EFKA-25261

0.2

Defoamer

EFKA-25261

0.3

Defoamer (add after grinding)

Wetting agent

Let down:
SYNTRAN 6301 @ 35%5

35.0

Cationic, acrylic binder

EFKA-25261

0.5

Defoamer

Rheolate 2556

2.2

Thickener

Water
Total

____
100.0

Preparation:
Grind: Add all ingredients in listed order and grind for ca. 60 minutes, until a fineness of grind
< 15 µm. Let down: Add all ingredients in listed order under stirring and mix for 10 minutes at
ca. 10 m/s. Then mix grind and let down for 10 minutes at ca. 10 m/s.
1
2
3
4
5
6

EFKA-Ciba Specialty Chemicals, Newport, Tel: 800-355-2422.
Kronos Inc., Cranbury, Tel: 609-860-6200.
Huber Engineered Materials, Atlanta, Tel: 678-247-7300.
Luzenac America, Centennial, Tel: 303-643-0400.
INTERPOLYMER.
Elementis Specialties, Hightstown, Tel: 609-443-2000.

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Creative Polymer Solutions

NEW FROM INTERPOLYMER
TANNIN BLOCKING COATING BASED ON SYNTRAN® FX30-20
Formulation F-43-048-01 25% N.V.
The SYNTRAN FX30-20 tannin blocking coating formulation is designed to fill and seal
wood pores completely and to prevent tannin stains in new wood before applying a
topcoat. This quick-drying sealer formulation sands easily to a smooth surface for
even topcoating.
SYNTRAN FX30-20 contains formic acid. The sealer, tannin blocking coating should
not be used on metal surfaces and should be allowed to completely dry before anionic
topcoats are applied.
Mix in Order Listed:
Amount (g)
Water

27.1

Citric acid

0.5

Dipropylene Glycol Methyl Ether
®

SYNTRAN FX30-20 @ 35% N.V.

1.0
71.4

Bactericide

Q.S.

Defoamer

Q.S.
_____
Total:

100.0

Procedure
Using good agitation add ingredients in the order listed.
Mix until a homogenous solution results (20-30 minutes).

•
•

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Creative Polymer Solutions

NEW FROM INTERPOLYMER
SYNTRAN® FX30-20
TANNIN BLOCKING COATING
LABORATORY REPORT
Test Results on Maple and White Oak

Syntran FX30-20
Formulation F-43-048-01
Base Coat

Leading National Brand
Polyurethane
Base Coat

58

50

48 minutes

> 2 hours

Excellent

Excellent

CRAZING ON GLASS

None

None

SANDING PROPERTIES
(100 grit sanding disk)
MFMA Test Methods

Excellent

N/A

Pass 3 cycles

Pass 3 cycles

25%

32%

5.2

4.2

None

None

TEST SAMPLES

60° SPECULAR GLOSS
ASTM D523
DRY TIME
ASTM D1640
ADHESION
ASTM D3359

FREEZE-THAW RESISTANCE

SOLIDS
ASTM D1644
pH
ASTM E70-77
TANNIN REACTION
(discoloration)

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Creative Polymer Solutions

NEW FROM INTERPOLYMER
SYNTRAN® FX30-20
TANNIN BLOCKING COATING
COMPATIBILITY TEST
TOP COAT TEST SAMPLES

SYNTRAN FX30-20
Formulation F-43-048-01
Base Coat

Leading National Brand
Polyurethane
Base Coat

F-43-045-01
SYNTRAN 6110 and 6120

Excellent

Excellent

Minwax Polyurethane for Floors

Excellent

Excellent

Minwax Polycrylic

Excellent

Excellent

Olympic Polyurethane

Excellent

Excellent

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Creative Polymer Solutions

SYNTRAN®
CATIONIC TECHNOLOGY
Formulation and Compatibility Guide

Instability at pH > 7
Recommended pH of formulation: 5-6
Incompatibility with:
•

Negatively charged polymer binders

•

Negatively charged wetting agents and dispersants

•

Alkaline thickeners

•

CaCO3 fillers

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Creative Polymer Solutions
Selected Application Test Results
(1) Nicotine Stain Blocking

Top: Stained substrate covered with a conventional water-based paint. Bottom: As above, but with an additional applied, non-pigmented primer based on SYNTRAN 6301. For accelerated staining, samples were
exposed to 40oC and 100% rel. humidity for two days.

(2) Blocking of a Water-Based Wood Stain

Left: Stained wood substrate covered with a non-specialized, white, water-based primer and topcoat system.
Severe bleeding is observed. Right: Same as on left side, but using a white stain-blocking primer based on
SYNTRAN 6301. Here, even the primer shows no discoloration. (Note: In the lower parts of the photo, the
substrate was covered with the primers only, whereas in the upper parts the primer/topcoat systems were
applied).

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Creative Polymer Solutions

(3) Tannin Stain Blocking on Framire Wood

Left: Application of a white, non-specialized, water-based primer. The yellow discoloration indicates severe
tannin bleeding. Right: Application of a white stain-blocking primer based on SYNTRAN 6301. Even when
applied in a single coat, discoloration due to wood extractives can be prevented.

(4) Tannin Stain Blocking on White Oak

Left: Application of a white, non-specialized, water-based primer. The yellow-brownish discoloration indicates severe tannin bleeding. Right: Application of a white stain-blocking primer based on SYNTRAN 6301.
Even when applied in a single coat, discoloration due to wood extractives can be prevented.

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Creative Polymer Solutions

(5) Stain Blocking on Cork

Left: Application of a white, non-specialized, water-based primer. The spotted, brownish discoloration indicates severe bleeding of extractives. Right: Application of a white stain-blocking primer based on SYNTRAN
6301. Even when applied in a single coat, discoloration due to extractives can be prevented.

(6) Graffiti Stain Blocking

Left: Substrate stained with (from top to bottom) graffiti from red text marker, yellow text marker, black ballpoint pen and blue OHP-pen. Middle: Graffiti stained substrate after application of a conventional, waterbased, white paint. Severe bleeding is observed. Right: Same as in the middle, but with an additionally
applied, non-pigmented stain blocking primer layer based on SYNTRAN 6301.
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Creative Polymer Solutions

AMERICA
Interpolymer Corporation
200 Dan Road
Canton, MA 02021
TEL: 800.262.1281
FAX: 781.821.2485
info@interpolymer.com

Inte rpoly mer Corpora t ion
7501 Distribution Drive
Louisville, KY 40258
TEL: 800.451-8177
FAX: 502.933.3394

On The Web
www.interpolymer.com

EUROPE
France
Inte rpoly mer Sàr l
6, Rue Marie Curie
BP10060—Zl Intercommunale
F-67162 Wissembourg, France
TEL: [33] 3/88 54 96 96
FAX: [33] 3/88 54 96 99

Germ any
Inte rpoly mer GmbH
Dr.-Wirth-Strasse 9a
67454 Hassloch, Germany
TEL: +49 6324 593106
FAX: +49 6324 593107
info@interpolymer.de

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