Tinuvin® XT 835 FF

Tinuvin® XT 835 FF by BASF is hindered amine derivative. It is a high performance light stabilizer system that is fully REACH compliant. It maintains its activity in acidic environments where conventional HALS performance may be reduced. It also helps to protect PVC from the harmful effects of UV light exposure and helps it to maintain its initial appearance, tensile, elongation, and impact properties during long-term weathering. In PVC roofing membranes, for example, it minimizes discoloration and embrittlement and enables the membranes to retain their moisture barrier properties and their reflectivity. Used in PVC pond, pool, and irrigation liners, PVC coated fabrics such as those used in tents, tarps, and awnings, flexible PVC outdoor furniture, PVC flooring, PVC automotive trim, PVC insulation for wire and cable, and in other flexible PVC outdoor applications. Tinuvin® XT 835 FF can also be used in rigid PVC formulations, especially those that do not contain tin mercaptide thermal stabilizers. Applications include dark colored PVC siding and pigmented window and door profiles. For long-term outdoor exposure conditions typical of roofing, siding, and decking applications, the recommended concentration is 0.5% or higher. For less severe end uses, 0.2-0.5% may be used.