PRODUCT GUIDEADDITIVES FOR SOLVENT-BORNE AND HIGH-SOLID
LEATHER FINISHES AND COATED FABRICS

AIR RELEASEADDITIVESWETTING ANDDISPERSING ADDITIVESWAX ADDITIVESRHEOLOGYADDITIVES

LE-G 2

02

Product Guide LE-G 2

Wet process – coagulation (1/2)
Pigment stabilization in DMF
Product

Inorganicpigments

Organicpigments

Carbon blacks

Fasterdissolutionof PU granules



BYK-L 9540
BYK-P 104 S
DISPERBYK-108



DISPERBYK-130
DISPERBYK-185
Especially recommended  

Active substance/ Chemistry
Reducedflooding/floating non-volatile matter(%)*1(post-additive)





60

Alkanolamine

50

Solution of a low molecular weight, unsaturated polycarboxylic acid polymer
and a polysiloxane copolymer> 97

Hydroxy-functional carboxylic acid ester with pigment-affinic groups

51

Solution of polyamine amides of unsaturated polycarboxylic acids> 90

Solution of modified polyurethane

Recommended*1 The active substance content does not necessarily correspond to the non-volatile matter content. Depending on the composition of the product and the analytical method of determination,
the non-volatile matter content can be higher or lower. The active substance content serves as the basis for calculating the dosage.

Pore control
Product

BYK-L 9520

Long tubelike pores

Large pores:
high coagulation
speed

Small pores:
Universal:
slow coagulation
better leveling,
speed
anti-cratering, andreduced water marks

87.5



BYK-L 9525

Active substance/ Chemistrynon-volatile matter(%)*2
Polyether-modified polysiloxane
Polyether-modified polysiloxane



BYK-L 9560



BYK-L 9565



100

Polyether-modified polydimethylsiloxane, hydroxy-functional

BYK-L 9568



> 97

Polyether-modified polydimethylsiloxane, hydroxy-functionalVISCOBYK-4015
Especially recommended  

Polyether-modified polysiloxane

Medium-volatile to highly volatile, aliphatic hydrocarbons with air release
component

Recommended*2 The active substance content does not necessarily correspond to the non-volatile matter content. Depending on the composition of the product and the analytical method of determination,
the non-volatile matter content can be higher or lower. The active substance content serves as the basis for calculating the dosage.

03

Product Guide LE-G 2

Wet process – coagulation (2/2)
Air release
ProductEasier deaeration under vacuumBetter self-deaeration after application

Active substance/ Chemistrynon-volatile matter(%)*3

BYK-070

9Solution of foam-destroying polymers and polysiloxanes

BYK-1788





> 98

Combination of surface-active substances

BYK-L 9505



89.5

Solution of a polyalkylene ether

Especially recommended  

Recommended*3 The active substance content does not necessarily correspond to the non-volatile matter content. Depending on the composition of the product and the analytical method of determination,
the non-volatile matter content can be higher or lower. The active substance content serves as the basis for calculating the dosage.

Rheology control
Product

Pseudoplastic flow behavior

RHEOBYK-430
Especially recommended  

Active substance/ Chemistrynon-volatile matter(%)*430



Solution of a high molecular weight, urea-modified, medium-polarity polyamide

Recommended*4 The active substance content does not necessarily correspond to the non-volatile matter content. Depending on the composition of the product and the analytical method of determination,
the non-volatile matter content can be higher or lower. The active substance content serves as the basis for calculating the dosage.

PU-resin modification
ProductSoftening

Improved pigment acceptance
Carbon blacks

BYK-L 9540

Organic pigments


Active substance/ Chemistrynon-volatile matter(%)*560

Alkanolamine

BYK-L 9560



BYK-L 9565



100

Polyether-modified polydimethylsiloxane, hydroxy-functional

BYK-L 9568

> 97

Polyether-modified polydimethylsiloxane, hydroxy-functional

51

Solution of polyamine amides of unsaturated polycarboxylic acids

DISPERBYK-130
Especially recommended  

Polyether-modified polydimethylsiloxane

Recommended*5 The active substance content does not necessarily correspond to the non-volatile matter content. Depending on the composition of the product and the analytical method of determination,
the non-volatile matter content can be higher or lower. The active substance content serves as the basis for calculating the dosage.

04

Product Guide LE-G 2

Dry process – coating (1/4)
Pigment stabilization
Matting
agentsOrganicpigments

BYK-9076





96

Alkylammonium salt of a high molecular weight copolymer

BYK-9077





100

Polyglycol polyester-modified polyalkylene imine

60

Alkanolamine

50

Solution of a low molecular weight, unsaturated
polycarboxylic acid polymer and a polysiloxane copolymer

100

Hydroxy-functional carboxylic acid ester withpigment-affinic groups> 90

Solution of modified polyurethane

BYK-P 104 S

DISPERBYK-108
DISPERBYK-185*7









DISPERBYK-2014*7





100

Copolymer with pigment-affinic groups

100

Modified polyacrylate100

Polyglycol polyester-modified polyalkylene imine

100

Block copolymer with aminic, pigment-affinic groups

60

Solution of polyester-modified polyalkylene imine

45

Solution of modified polyurethane

DISPERBYK-2055*7



DISPERBYK-2155*8DISPERBYK-2157*9



DISPERBYK-2159
DISPERBYK-2163*

Fasterdissolutionof PU granules

Active substance/ Chemistrynon-volatile matter(%)*6Inorganicpigments

BYK-L 9540

Carbonblacks

For high-solid
Reducedflooding/floating systems(post-additive)

Product

8Especially recommended  









Recommended*6 The active substance content does not necessarily correspond to the non-volatile matter content. Depending on the composition of the product and the analytical method of determination,
the non-volatile matter content can be higher or lower. The active substance content serves as the basis for calculating the dosage.

*7 For aqueous and solvent-borne systems*8 Also available as (organo) tin-free variant (“TF”). Information on tin-free variants can be found in the brochure B-AN 1 at www.byk.com/en/service/downloads/technical-brochures.  
*9 From bio-based raw materials

05

Product Guide LE-G 2

Dry process – coating (2/4)
Air release
ProductEasier deaeration under vacuum

Better self-deaeration after application

Active substance/ Chemistrynon-volatile matter(%)*10BYK-039*11

BYK-070

9

Solution of foam-destroying polymers and polysiloxanes

BYK-1788

> 98

Combination of surface-active substances

BYK-1794





100

Polyolefin copolymer

BYK-L 9505





89.5

Solution of a polyalkylene ether

Especially recommended  Mixture of paraffinic mineral oils and hydrophobic components

Recommended*10 The active substance content does not necessarily correspond to the non-volatile matter content. Depending on the composition of the product and the analytical method of determination,
the non-volatile matter content can be higher or lower. The active substance content serves as the basis for calculating the dosage.
*11 Only in high-solid PU

Rheology control
Product

Pseudoplastic flow behavior

RHEOBYK-430

Viscosity reduction
in high-solid PU

RHEOBYK-7410 ET



VISCOBYK-4015
Especially recommended  

Thixotropic flow behavior

Active substance/ Chemistrynon-volatile matter(%)*1230

Solution of a high molecular weight, urea-modified, medium-polarity polyamide

40

Solution of a modified urea
Medium-volatile to highly volatile, aliphatic hydrocarbons with air release
component

Recommended*12 The active substance content does not necessarily correspond to the non-volatile matter content. Depending on the composition of the product and the analytical method of determination,
the non-volatile matter content can be higher or lower. The active substance content serves as the basis for calculating the dosage.

06

Product Guide LE-G 2

Dry process – coating (3/4)
Chemistry

100

Polyether-modified polydimethylsiloxane

BYK-326







> 96

Polyether-modified polymethylalkylsiloxane

BYK-333





100

Polyether-modified polydimethylsiloxane





> 99

Polyether-modified polydimethylsiloxane

BYK-3760



BYK-L 9560

BYK-L 9565

BYK-L 9568
BYK-SILCLEAN 3700*

14

CERAFLOUR 929 N
CERAFLOUR 950







Melting point(wax component)
in °C

Polyether-modified polydimethylsiloxane



CERAFLOUR 981 R

CERAFLOUR 920



For PU polymerization
processes

Solution of a polyether-modified polymethylalkylsiloxane

For high-solid systems

52Soft-touchEasy-to-clean effect

Water/oil repellency

Wetting of (non-) woven,anti-pinhole effect

BYK-325 NEffect pigment orientation

Matting

Anti-blockingBYK-307

Pull-up effectSlip, anti-blocking, leveling

Activesubstance/non-volatilematter (%)*13

Wetting of release paper

Product

Scratch/abrasion resistance

Surface properties (1/2)







100

Polyether-modified polydimethylsiloxane, hydroxy-functional



> 97

Polyether-modified polydimethylsiloxane, hydroxy-functional

25

Solution of a silicone-modified polyacrylate (OH-functional)

100

Urea-aldehyde resin

100

Micronized, modified PE wax

115

100

Micronized, modified HD polyethylene wax

135

100

Micronized PTFECERAFLOUR 988*15

100

Micronized, amide-modified polyethylene wax

140

CERAFLOUR 993*

100

Micronized amide wax

145

CERAFLOUR 994

100

Ultra-fine micronized amide wax

145

Especially recommended  

Recommended16

*13 The active substance content does not necessarily correspond to the non-volatile matter content. Depending on the composition of the product and the analytical method of determination,
the non-volatile matter content can be higher or lower. The active substance content serves as the basis for calculating the dosage.
*14 Hydroxy-functional  *15 For aqueous and solvent-borne systems   *16 From bio-based raw materials

07

Product Guide LE-G 2Dry process – coating (4/4)

For PU polymerization
processes

For high-solid systems

Scratch/abrasion resistanceEasy-to-clean effect

Water/oil repellency

Slip, anti-blocking, leveling

Wetting of release paper

Wetting of (non-) woven,anti-pinhole effectChemistry

Melting point(wax component)
in °C

CERAFLOUR 1000*16



100

Polyester175

CERAMAT 248







20

Highly concentrated dispersion of a polyethylene wax

110

4.7

Ethylene vinyl acetate copolymer wax dispersion (EVA)105

CERATIX 8561
Especially recommended  Soft-touchMatting

Activesubstance/non-volatilematter (%)*13

Anti-blocking

Pull-up effectProductEffect pigment orientation

Surface properties (2/2)

Recommended*13 The active substance content does not necessarily correspond to the non-volatile matter content. Depending on the composition of the product and the analytical method of determination,
the non-volatile matter content can be higher or lower. The active substance content serves as the basis for calculating the dosage.
*14 Hydroxy-functional  *15 For aqueous and solvent-borne systems   *16 From bio-based raw materials

06/2022
LE-G 2BYK-Chemie GmbHAbelstraße 4546483 Wesel
GermanyTel +49 281 670-0
Fax +49 281 65735

ADD-MAX®, ADD-VANCE®, ANTI-TERRA®, AQUACER®, AQUAMAT®, AQUATIX®, BENTOLITE®, BYK®, BYK-AQUAGEL®, BYK®-DYNWET®, BYK-MAX®,
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and VISCOBYK® are registered trademarks of the BYK group.

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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 touse. No warranties of any kind, either express or implied, including warranties of merchantability or fitness for a particular purpose, are made regarding
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This issue replaces all previous versions.