DISPERBYK-2155 100% High Solids Wetting and Dispersing Additive
DISPERBYK-2155 100% High Solids Wetting and Dispersing Additive
DISPERBYK-2155 100% High Solids Wetting and Dispersing Additive
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Fact Sheet L-XS 23<br />
<strong>DISPERBYK</strong>-<strong>2155</strong><br />
<strong>100%</strong> <strong>High</strong> <strong>Solids</strong> <strong>Wetting</strong> <strong>and</strong> <strong>Dispersing</strong> <strong>Additive</strong><br />
Environmental concerns lead to<br />
modified coating formulations,<br />
<strong>and</strong> in the recent past there is a<br />
growing dem<strong>and</strong> for high solids<br />
systems. This technology calls for<br />
additives with high solids content.<br />
Often, these additives suffer from<br />
poor flowability, in particular if they<br />
have a higher molecular weight.<br />
Bringing the opposites in line,<br />
BYK developed a high molecular,<br />
<strong>100%</strong> solids additive that provides<br />
outst<strong>and</strong>ing deflocculation <strong>and</strong><br />
stabilization but avoids the usual<br />
drawbacks. <strong>DISPERBYK</strong>-<strong>2155</strong> is<br />
entirely flowable, storage stable <strong>and</strong><br />
covers a wide compatibility range.<br />
<strong>DISPERBYK</strong>-<strong>2155</strong>: Spherical Structure Generates Flowable <strong>High</strong> Molecular Weight Polymer<br />
Conventional linear structure:<br />
MW: 20.000 g/mol<br />
<strong>Solids</strong> content: <strong>100%</strong><br />
Viscosity: Not flowable<br />
<strong>DISPERBYK</strong>-<strong>2155</strong> spherical structure:<br />
MW: 20.000 g/mol<br />
<strong>Solids</strong> content: <strong>100%</strong><br />
Viscosity: 13.000 mPa·s<br />
figure 1<br />
Your benefits<br />
• <strong>100%</strong> solids<br />
• Flowability <strong>and</strong> high molecular weight<br />
at the same time<br />
• Good millbase viscosity reduction<br />
• Excellent deflocculation/stabilization<br />
of pigments<br />
• No yellowing in baking systems<br />
• No impact on drying time of 2-pack<br />
systems<br />
• Storage stable, even at low<br />
temperatures (< 0 °C/32 °F)<br />
• Wide compatibility<br />
Compatibility in Various Resin Systems<br />
System<br />
Alkyd long oil<br />
Alkyd medium oil<br />
Alkyd short oil<br />
Polyester<br />
Acrylate/NCO<br />
Acrylate/Melamine<br />
TPA<br />
NC Combi<br />
Epoxy<br />
<strong>DISPERBYK</strong>-<strong>2155</strong><br />
X<br />
X<br />
X<br />
X<br />
Viscosity increase<br />
X<br />
X<br />
X<br />
X<br />
Color shift<br />
Dosage: 5% additive on resin solids figure 2<br />
X
Fact Sheet L-XS 23<br />
<strong>High</strong> Transparency in Coatings<br />
Pigments: Heliogen Green* L 8730; Heliogen Blue* L 6975 figure 3<br />
<strong>Additive</strong> dosage: 25% on solid pigment<br />
Excellent Viscosity Reduction<br />
Viscosity [Pa·s]<br />
150<br />
100<br />
50<br />
0<br />
0.1 1<br />
10 100<br />
Pigment: Heliogen Green* L 9361 PG 36<br />
Shear rate [s -1 ]<br />
X St<strong>and</strong>ard <strong>Additive</strong> X <strong>DISPERBYK</strong>-<strong>2155</strong> figure 4<br />
*Heliogen is a registered trademark of BASF<br />
BYK-Chemie GmbH<br />
P.O. Box 10 02 45<br />
46462 Wesel<br />
Germany<br />
Tel +49 281 670-0<br />
Fax +49 281 65735<br />
info@byk.com<br />
www.byk.com/additives<br />
ANTI-TERRA ® , BYK ® , BYK ® -DYNWET ® , BYK ® -SILCLEAN ® , BYKANOL ® , BYKETOL ® , BYKOPLAST ® , BYKUMEN ® , <strong>DISPERBYK</strong> ® ,<br />
DISPERPLAST ® , LACTIMON ® , NANOBYK ® , SILBYK ® , <strong>and</strong> VISCOBYK ® are registered trademarks of BYK-Chemie.<br />
AQUACER ® , AQUAFLOUR ® , AQUAMAT ® , CERACOL ® , CERAFAK ® , CERAFLOUR ® , CERAMAT ® , CERATIX ® , <strong>and</strong> MINERPOL ®<br />
are registered trademarks of BYK-Cera.<br />
This information is given to the best of our knowledge. Because of the multitude of formulations, production, <strong>and</strong> application<br />
conditions, all the above-mentioned statements have to be adjusted to the circumstances of the processor. No liabilities,<br />
including those for patent rights, can be derived from this fact for individual cases.<br />
This brochure replaces all previous issues – printed in Germany.<br />
07/2008
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