RHEOLOGYADDITIVES

SPECIALTIESPRODUCT GUIDEUNSATURATED POLYESTER AND
VINYLESTER RESINSSURFACEADDITIVESDEFOAMERS
TS-G 1WETTING ANDDISPERSING ADDITIVES

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Unsaturated polyester and vinylester resins

Additives overview (1/2)
ProductEffectProduct group

Application

BYK-081

Deaeration

Air release additives

For clear system, with food contact legal status**

BYK-A 500

For clear systems

BYK-A 515

With glass fiber wetting properties, recommended for vinylester resins and gelcoats

BYK-A 555

Best universal additive

BYK-W 908/
BYK-W 909***

Viscosity reduction, filler increase

Wetting and dispersing additives

Viscosity reduction in casting resins and polymer concrete

BYK-W 966

Viscosity reduction in thixotropic filled systems, e.g. laminating resins or putties

BYK-W 969

For putties, not suitable for cobalt accelerated systems

BYK-W 985

Viscosity reduction in non-thixotropic filled systems

BYK-W 940

Anti-sagging, viscosity increase

GARAMITE-1958

Wetting and dispersing additives

All applications

Rheology additives

All applications, especially in combination with RHEOBYK-R 605

RHEOBYK-R 605*
BYK-S 780

All applications
Anti-tackAnti-tack additives

BYK-S 782
BYK-S 740

Anti-tack, in particular for vinylester resins, no interlaminar adhesion required
For gel coats, good interlaminar adhesion, also for higher temperatures

Emission reduction

Emission reducers

For orthophthalic and isophthalic resins

BYK-S 750 N

For DCPD, vinylester and isophthalic resins

BYK-S 760

Green styrene emissions reducer with food contact legal status**

BYK-9076

Wetting and dispersing additives

All applications/carbon fiber only

BYK-A 560

Air release additives

All applications/all type of fibers

BYK-P 9920

Processing additives

All applications/all type of fibers

BYK-S 732

Surface additives

All applications/all type of fibers

Wetting and dispersing additives

In particular for laminating resins

ANTI-TERRA-210

Fiber wetting, reduction of porosity and dry spots

Anti-settling

BYK-W 940
GARAMITE-1958

All applications, viscosity increase possible
Rheology additives

All applications, especially in combination with RHEOBYK-R 605* Always in combination with a solid thixotrope like fumed silica or clay.  ** For details contact foodcontact.byk@altana.com or visit www.byk.com.   *** BYK-W 909 not available in EU

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Unsaturated polyester and vinylester resins

Additives overview (2/2)
ProductEffectProduct group

Application

BYK-330

Substrate wetting

Surface additives

All applications, strong surface tension reduction

BYK-370
BYK-C 8000

All applications, for transparent applications
Physical properties

Coupling additives

All applications, for silica sand and glass beads

BYK-C 8003

Glass fiber reinforced composites

BYK-C 8013

Carbon fiber reinforced composites

BYK-220 SN

Color stability

Wetting and dispersing additives

For titanium dioxide and inorganic pigments

BYK-W 940

Universal for all type of pigments, anti-settling effect (viscosity increase possible)

DISPERBYK-2151

For organic and inorganic pigments

BYK-P 9912

Mold release

Processing additives

All applications

12/2021
TS-G 1BYK-Chemie GmbH
P.O. Box 10 02 4546462 Wesel
GermanyTel +49 281 670-0
Fax +49 281 65735

ADD-MAX®, ADD-VANCE®, ADJUST®, ADVITROL®, ANTI-TERRA®, AQUACER®, AQUAMAT®, AQUATIX®, BENTOLITE®, BYK®, BYK®-DYNWET®,
BYK®-MAX®, BYK®-SILCLEAN®, BYKANOL®, BYKETOL®, BYKJET®, BYKO2BLOCK®, BYKOPLAST®, BYKUMEN®, CARBOBYK®, CERACOL®, CERAFAK®,CERAFLOUR®, CERAMAT®, CERATIX®, CLAYTONE®, CLOISITE®, DISPERBYK®, DISPERPLAST®, FULACOLOR®, FULCAT®, GARAMITE®, GELWHITE®,
HORDAMER®, LACTIMON®, LAPONITE®, MINERAL COLLOID®, MINERPOL®, NANOBYK®, OPTIBENT®, OPTIFLO®, OPTIGEL®, POLYAD®, PRIEX®,
PURE THIX®, RECYCLOBLEND®, RECYCLOBYK®, RECYCLOSSORB®, RECYCLOSTAB®, RHEOBYK®, RHEOCIN®, RHEOTIX®, SCONA®, SILBYK®,TIXOGEL®, VISCOBYK® and Y 25® are registered trademarks of the BYK group.

info@byk.com
www.byk.com

The information herein is based on our present knowledge and experience. The information merely describes the properties of our products but noguarantee of properties in the legal sense shall be implied. We recommend testing our products as to their suitability for your envisaged purpose
prior to use. No warranties of any kind, either express or implied, including warranties of merchantability or fitness for a particular purpose, are maderegarding any products mentioned herein and data or information set forth, or that such products, data or information may be used without infringingintellectual property rights of third parties. We reserve the right to make any changes according to technological progress or further developments.
This issue replaces all previous versions.