Byk® -321

Solution of a polyether modified polymethylalkylsiloxane. Acts as a silicone based leveling agent. Provides a slight reduction of surface tension.

Details

Industry
Producer
Supplier
Chemical Composition

Polyether modified polymethylalkylsiloxane

Advantages
  • Offers good defoaming action
  • Exhibits no problems with ghosting or telegraphing, in automotive or industrial coatings
  • Defoaming activity rises with increasing coating polarity
  • Improves flow and leveling
  • Prevents formation of Bénard cells
Other Applications

Coatings Markets > General Industrial /Maintenance
Coatings Markets > Automotive refinishing
Coatings Markets > Automotive OEM

Technical data

Quantity Value Unit Comment
Recommended Levels 0.05 - 0.6 %
Thermal Properties
flash point 63 ºC
Chemical Properties
Non-volatile materials 51 % wt