CHIMASSORB® 81

CHIMASSORB 81 is a solid UV absorber of the 2-hydroxy-benzophenone class. This product significantly improves the resistance of clear coatings to failures upon exposure to sunlight such as discoloration, cracking, loss of gloss and loss of adhesion. Its performance in outdoor applications can be improved further by use in synergistic combination with a hindered amine light stabilizer (HALS) such as Tinuvin 292 or Tinuvin 123. The use of CHIMASSORB 81 should be reserved for applications where expectations of the final coating’s durability are moderate since the light stability of 2-hydroxy-benzophenone derivatives is known to be limited.

Product highlights

  • Low yellowing
  • Good absorbance in the UV-B region
  • Improves failure of coatings resulting from exposure to sunlight including discoloration, cracking and loss of adhesion

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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