Tinuvin® 400

Tinuvin® 400 by BASF is a liquid hydroxyphenyl-triazine (HPT) UV absorber designed to fulfill the high performance and durability needs of solvent-borne coatings, 100% solids automotive and industrial finishes. It exhibits low color, migration, excellent photo-permanence and minimal interaction with metal catalysts and amine crosslinkers.

• It provides excellent performance in coatings due to very high thermal stability and performance for coatings exposed to high bake cycles and/or extreme environmental conditions.
• It offers hydroxy functionality to minimize migration, high photo-stability for long-life performance and high concentration for maximum efficiency.
• It has been developed as an interaction-free UV absorber for use in amine and/or metal-catalyzed coating systems and coatings applied on base-coats or substrates containing such catalysts.
• In combinations with a HALS such as Tinuvin® 123, 249 or 292, it enhances the protective effect, improves the durability of clear coats by retarding gloss reduction, delamination, cracking, and blistering.
• Tinuvin® 400 is recommended for automotive refinish- and UV cured- and exterior construction coatings (roofing, etc.)