EFKA® SL 3257

Highly effective solvent-free slip additive and leveling agent for non-aqueous coatings and UV systems

EFKA SL 3257 is a solvent-free, 100% active, polyether modified polysiloxane, for use in inks, coatings and paints. EFKA SL 3257 exhibits excellent substrate wetting and reduction of surface tension of the liquid film. It is compatible with a wide range of resins and provides slip modified surfaces that are conducive to recoatability. Additionally, EFKA SL 3257 has been found to improve gloss, scratch resistance and leveling of coatings, and provides very efficient reduction of CoF (coefficient of friction).

Product highlights

  • 100% active, polyether modified polysiloxane, slip and leveling agent
  • Broad compatibility in a wide range of resins
  • Produces surfaces that are conducive to recoatability
  • Improves gloss, scratch-resistance, and leveling
  • Highly efficient at reducing coefficient of friction

Suggested applications:

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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