W200_EN

Data Sheet W200Issue 11/09

DISPERBYK-161 DISPERBYK-162 DISPERBYK-163DISPERBYK-164 DISPERBYK-167

High Molecular Weight Wetting and Dispersing Additives for Solvent-Borne Systems and Pigment Concentrates

Composition

DISPERBYK-161DISPERBYK-162DISPERBYK-163DISPERBYK-164DISPERBYK-167

Solutions of high molecular weight block copolymers with pigment affinic groups

Typical Properties

Amine value in mg KOH/g

Density at 20C in g/ml

Non-volatile matter in %

Flash point in C

DISPERBYK-16111 1.01 30 38Solvents: Methoxypropylacetate/Butylacetate 6/1

DISPERBYK-16213 1.00 38 28Solvents: Methoxypropylacetate/Xylene/Butylacetate 5/4/2

DISPERBYK-16310 0.99 45 28Solvents: Xylene/Butylacetate/Methoxypropylacetate 3/1/1

DISPERBYK-16418 1.03 60 26Solvents: Butylacetate

DISPERBYK-16713 1.05 52 35Solvents: Methoxypropylacetate/Butylacetate 2/1

Values indicated in this data sheet describe typical properties and do not constitute specification limits.


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Recommended Levels

% additive (as supplied) based upon pigment

inorganic pigments titanium dioxide organic pigments carbon blacks

DISPERBYK-161 10 - 15 5 - 6 30 - 90 70 - 140

DISPERBYK-162 12 - 20 5 - 6 25 - 85 60 - 120

DISPERBYK-163DISPERBYK-167

15 - 20 4 - 5 30 - 60 80 - 100

DISPERBYK-164 12 - 15 3 - 4 20 - 35 60 - 70

The above recommended use levels are strongly dependent on pigment particle size. Optimal levels may be determined with a ladder series in the laboratory.

Incorporation and Processing Instructions

Wetting and dispersing additives should be added to the millbase. Only this way they can achieve their full effectiveness.Premix resin and solvents. Then add the additive under agitation until uniformly dissolved. When the additive has been appro-priately incorporated, add pigments.To repair production batches, DISPERBYK-163, DISPERBYK-164 and DISPERBYK-167 are best suited for post-addition. A slow addition with high shear forces is required.BYK-331 (see data sheet S200) should additionally be used in baking systems to improve leveling and to prevent Bnard cells.

Applications

DISPERBYK-161 DISPERBYK-162 DISPERBYK-163 DISPERBYK-164 DISPERBYK-167

Industrial coatings

Automotive refinish coatings

Automotive OEM coatings

Coil coatings

Wood coatings

Architectural coatings

Pigment concentrates

recommended suitable

Function

These high molecular weight additives deflocculate pigments through steric stabilization of the pigments. They provide equal electrical charge to pigments and thus avoid additionally possible co-flocculation of pigments that are not equally charged. Due to the small particle sizes of the deflocculated pigments, high gloss is achieved and color strength improved. Additionally, transparency of transparent pigments and hiding power of opaque pigments are increased. These products reduce viscosity; subsequently, leveling is improved and higher pigment loading is possible.


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Special Features and Benefits

DISPERBYK-161DISPERBYK-161 is an optimized version of DISPERBYK-160 in regard to product handling. Its mo-lecular weight distribution, polarity and effectiveness are very similar to those of DISPERBYK-160.

DISPERBYK-162DISPERBYK-162 is used primarily in wood coatings and for the production of pigment concentrates. DISPERBYK-162 has a slightly lower molecular weight and polarity than DISPERBYK-161.

DISPERBYK-163

DISPERBYK-163 is used in many formulations. For new developments, however, the additives DISPERBYK-2164 and DISPERBYK-2163 (see Data Sheet W235) should be preferred.

DISPERBYK-163 has an even lower molecular weight than DISPERBYK-162, is less polar and is used primarily in general industrial coatings and to produce pigment concen trates. It has a wider compatibility in various binder types than DISPERBYK-161 and DISPERBYK-162. The aromatic-free version of DISPERBYK-163 is available as the product DISPERBYK-167.

DISPERBYK-164

DISPERBYK-164 is used in many formulations. For new developments, however, the additive DISPERBYK-2164 (see Data Sheet W235) should be preferred.

DISPERBYK-164 has a molecular weight similar to that of DISPERBYK-163, but is less polar and its solids content is higher. It is used in pigment concentrates and general industrial coatings. DISPERBYK-164 does not contain aromatics.

DISPERBYK-167

DISPERBYK-167 is used in many formulations. For new developments, however, the additive DISPERBYK-2164 (see Data Sheet W235) should be preferred.

DISPERBYK-167 is the aromatic-free version of DISPERBYK-163. It has the same application properties as DISPERBYK-163.

Special Note

The treatment of some organic pigments can negatively influence the efficiency of these wetting and dispersing additives. In such cases, tests with the untreated pigment of the same type may be successful.When using these additives in coil coatings, possible interaction with the acid catalyst must be taken into consideration. Amine-blocked acids are less suitable than free acids or epoxy-blocked acids. These problems can be circumvented by using the DISPERBYK-170 family (see Data Sheet W201) instead.

Storage and Transportation

DISPERBYK-161DISPERBYK-163

Separation or turbidity may occur at temperatures below 0C. Warm to 20C and mix well.

DISPERBYK-164Separation or turbidity may occur at temperatures below 0C.Warm to 20C and mix well.The color of the product may change during storage. Product efficiency is not influenced.

DISPERBYK-167Separation or turbidity may occur. Stir before use. Heat to 30-60C and stir well.


ANTI-TERRA, ATEPAS, BYK, BYK-DYNWET, BYK-SILCLEAN, BYKANOL, BYKETOL, BYKOPLAST, BYKUMEN, DISPERBYK, DISPERPLAST, ISAROL, LACTIMON, NANOBYK, SILBYK and VISCOBYK are registered trademarks of BYK-Chemie. AQUACER, AQUAMAT, AQUATIX, CERACOL, CERAFAK, CERAFLOUR, CERAMAT, CERATIX and MINERPOL are registered trademarks of BYK-Cera. LICOMER is a registered trademark of Clariant.

This information is given to the best of our knowledge. Because of the multitude of formulations, production and application conditions, all the above-mentioned statements have to be adjusted to the circumstances of the processor. No liabilities, including those for patent rights, can be derived from this fact for individual cases.

This issue replaces all previous versions - Printed in Germany

BYK-Chemie GmbHP.O. Box 10 0245 46462 WeselGermanyTel +49 281 670-0 Fax +49 281 65735

[email protected]/additives

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