Ralph
Nicked this of a commercial supplier site: :angel:
Waterproof Wet & Dry Paper uses a flexible, latex impregnated, anti-slip backing paper with a fully resin bonded grit. Can be used wet or dry as a durable abrasive for hand finishing. Supplied in full sheets down to very fine grits for preparation of painted or lacquered surfaces, fibreglass and metals to produce a high quality finish
HTH
Doug