| 摘要 |
A method of treating glass-fibre reinforced polyester resin boat hulls and other articles, the surface of which is subjected to prolonged exposure to water in use, in order to prevent damage to a gel layer on the surface by the "osmosis" effect comprises treating the surface, prepared as required with a layer of a composition comprising a mixture of a metal powder and a moisture- hardenable polyurethane prepolymer resin, and thereafter causing or allowing the resin to harden. The preferred metal powder is copper, which also has an anti-fouling effect, particularly if the hardened layer is given a matt finish. |
