Treatment of exposed rigid surfaces to prevent graffiti

摘要

The procedure consists of applying a coat of a protective varnish to exposed rigid surfaces e.g. of metal plastic or other materials. In the event of the surface being defaced by graffiti the varnish coat can be scraped or peeled off and replaced with a fresh coat. Rough or porous surfaces may need a primer coating of an adhesive and transparent varnish before the protective coating can be applied.