FOAMSTAR® ST 2438

FOAMSTAR ST 2438 is a 100% active defoamer compound combining a hyper-branched Star polymer with high-end organo-silicones to deliver fast foam knock down with very high efficiency. FOAMSTAR ST series represents a novel series of defoamers based on new defoamer chemistry. This product is effective in high gloss paints and coatings based on acrylic, styrene acrylic and vinyl acrylic latex.

Product highlights

  • Does not reduce the gloss of high gloss paints and coatings
  • Effective in difficult to defoam high gloss formulations
  • Fast bubble-break versus conventional defoamers
  • Effective against Microfoam
  • Does not separate or settle
  • Very good persistence
  • Effective in deep and clear/neutral bases

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Located outside of North America? Visit our global website here.


Notice Under California Consumer Privacy Act (“CCPA”)
Please be aware that by registering with BASF to learn more about products and services, making purchases, or initiating other business transactions with BASF, BASF will be collecting certain personal information about you and your internet activity for specific business purposes. For a description of the information collected about you and the business purposes for which that information is used, please click here: Table III Data Collection Purpose. For further information about BASF’s overall data privacy practices, please review BASF’s Privacy Policy, which may be accessed here: https://www.basf.com/us/en/legal/data-protection.html