Products

The Hanson Group UV-944 is a low-dust, polymeric hindered amine light stabilizer (HALS) who provides superb light stability to many polymers and, in addition, gives long-term heat stability to polymers by radical trapping mechanism similar to that of hinder phenol. HXA UV-944’s effectiveness combined with its low volatility and low extractability makes itself the most widely used HALS commercially available.

The Hanson Group UV-770 acts as hindered amine light stabilizer. Bis(2,2,6,6,-tetramethyl-4-piperidinyl) decanedioate. It provides outstanding light stability to many polymers and, in addition, gives long-term heat stability to polymers by radical trapping mechanism similar to that of hinder phenol. HXA UV-770 effectiveness is independent of the polymer’s thickness, in contrast to UV absorbers. It can be incorporated in monomer before polymerization, often with improvement of resin quality.

Chiguard® UV-234 belongs to the family of substituted benzotriazoles which protect against ultraviolet radiation. Compared to other Chitec’s UV absorbers, Chiguard® 234 has lowest volatility which makes it especially useful for those applications involving high temperature processing.

The Hanson Group UV-622 is a low-dust, polymeric hindered amine light stabilizer who provides outstanding light stability to many polymers and, in addition, gives long-term heat stability to polymers by radical trapping mechanism similar to that of hinder phenol. UV-622 produces virtually no effect on initial substrate color.