ON-SITE PIPE COATING PROCESS

摘要

A process for treating metal pipe in the field is provided, for repair, rehabilitation of protection. The process comprises coating at least part of a pipe surface with first an undercoat of a thermosetting polymer such as a polyurethane or polyepoxide and second with an overcoat of a polyolefin composition e.g. a grafted polyolefin or ethylene/acrylic acid copolymer. The overcoat is applied by thermospraying.