Coating composition comprising a UV curable resin

摘要

A coating composition for a flexible thermoplastics extrusion comprises a UV curable resin. The resin is preferably an aliphatic waterborne resin such as a polyurethane dispersion and preferably constitutes from 40 to 80 weight-% of the composition excluding solvent or dispersant. The composition may also include a friction-reducing agent. The extrusion is preferably a thermoplastic elastomer extrusion or a weatherstrip seal, for instance for an automobile. Also claimed is a sealing system for automotives, the sealing system comprising a coating formulation comprising a UV curable resin applied to a flexible thermoplastic extruded substrate. Further claimed is a method of coating a flexible thermoplastic extrusion, the method comprising exposing the coated product to UV light of wavelength 200 to 400nm. The use of a coating formulation comprising a UV curable resin for coating a flexible thermoplastic extrusion is also independently claimed.