Tinuvin® 477

Tinuvin® 477 by BASF is a liquid, high-performance UV absorber developed for solvent-borne and liquid UV curable coatings. It is suited for the protection of UVA range sensitive substrates or ingredients. It is a hydroxyphenyl-triazine UV absorber with high extinction in the UV-A range. It exhibits excellent photo-permanence and minimal interaction with metal catalysts and amine crosslinkers. Its high thermal stability and photo-permanence makes it suitable for coatings exposed to high bake temperatures and/or to extreme environmental conditions. It fulfills the long-term durability requirements of high performance decorative and industrial coatings. It is a broadband absorbing UV absorber with high extinction particularly in the UVA range (320-390 nm) designed to block UVA light from the sun and artificial lighting sources. Tinuvin® 477 stabilizes the color of substrates such as natural or stained wood as well as tinted or printed materials, for indoor varnishes. Recommended for clear and pigmented systems such as exterior wood coatings and penetrating finishes (I.e. LO Alkyd based clear and pigmented systems), indoor solvent-borne and UV cured wood coatings, waxes and wood care products. It is also applicable in polishes, coatings on plastics, vinyl and glass.