Universal pastes based on Laropal A 81 + DISPERBYK 163 or DISPERBYK 161 are used in a mix system to produce final…

you are describing is very well known in the base coat area. CAB often causes a problem, even so the pigments are well stabilized. There are two major points …

In a polyurethane adhesive I am using a hydrophilic fumed silica like AEROSIL R 200 or Cab-O-Sil M5 to adjust the…

increasing the hydrogen bondings between the fumed silica particles. This is giving a much stronger rheology effect which allows to reduce the overall amount of…

I need to disperse a high load of fumed-silica into a liquid epoxy resin to thicken the binder and a rheology agent to…

Disperbyk-103 is one of the wetting and dispersing additive for silicas. This additive gives better flow properties and it is possible to add even more silica…

We are producing a water-based paint for airless application and looking for a rheology modifier, which gives a high sag…

levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.

I have a cratering problem in my aqueous coating with a water-reducible resin and a co-solvent amount of ~15%, how can I…

Craters occur if there is a surface tension problem. It might be that a particle with a lower surface tension falls into the fresh coating and after drying a…

I have been asked to recommend a dispersion agent for a high surface area carbon black in a solvent-based automotive top…

be DISPERBYK-2200 , DISPERBYK-2000 , DISPERBYK-2001 . In base coat systems with a level of 70% additive solid on pigment. For top coats we recommend…

I have been asked to recommend a dispersion agent for a high surface area carbon black in a solvent-based automotive top…

be DISPERBYK-2200 , DISPERBYK-2000 , DISPERBYK-2001 . In base coat systems with a level of 70% additive solid on pigment. For top coats we recommend…

Which rheology additives can be used in a waterbased polyurethane formulation to create a good flow behaviour by using a…

Optimum processability requires a perfectly adjusted rheology profile. A combination of RHEOBYK-H 3300 VF and

I have a 2 component polyurethane adhesive, filled with a 5µm CaCO3 used for panel production. The amount of CaCO3 which…

We recommend to test 0,5 % of BYK-W 969 calculated on the amount of filler. This will significantly reduce the viscosity.

Which dispersing agent would you recommend for dispersing Novoperm yellow HR70 in a polyester resin with low acid value?…

Normally, the DISPERBYK-163 is a useful additive for this pigment. In the case that you talk about a CAB-containing

We are looking for a solution to achieve a good haptic (silk/soft-feel) in various systems (solvent-borne, aqueous, and…

use either CERAFLOUR 1000 ; CERAFLOUR 994 or CERAFLOUR 988 . CERAFLOUR 1000 is a micronized wax additive based upon a biodegradable polymer and, thus, fulfills…

We are producing a solvent borne paint and using fumed silica as rheology modifier. The effect is not strong enough. Do…

RHEOBYK-7405 is an aromatic- and tin-free rheology additive and used as a thixotropy-enhancing additive in solvent-free and solvent-borne systems which [...]…