Restores colour and shine to fibreglass and other surfaces, such as GRP boat hulls. Sunlight, rain and pollution cause plastics to fade and discolour. Paints and varnishes become flat and 'chalky'. Unpainted metal even stainless steel and chrome loose its lustre. Polytrol penetrates and re-wets the surface, renewing colour to faded plastic, rejuvenating paint and varnished surfaces and restoring and protecting polished metal and chrome.