Dispersions, Resins and Additives, North America
Defoamer additive

EFKA® SI 2721

Defoamer for UV-curing and EBC systems with highly effective defoaming in clear and matted systems; defoaming substances in 2-ethylhexyl acrylate.

EFKA® SI 2721 functions well as a defoamer in the production stage and during application without giving curtain rupture in curtain coatings. This product was specially developed for UV-curable systems and electron-beam-curable systems.

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Product selection guide - Additives
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Material safety datasheet (United States - English)
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Material safety datasheet (United States - Spanish)
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Country: United States Language: Spanish
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Material safety datasheet (Canada - English)
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Country: Canada Language: English
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Material safety datasheet (Canada - French)
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Country: Canada Language: French
Technical datasheet
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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