C.R. LAURENCE CRL10 CRL Plastic Cleaner and Polish. Developed especially for the glass industry, CRL Plastic Cleaner and Polish cleans and polishes virtually everything made of plastic. It"s great for removing tiny scratches from acrylic windows in boats, campers, RV"s, airplanes, or any other vehicle. It can polish the plastic on boat surfaces, seat covers, shower doors, Formica tops, etc. Handy and attractive squeeze bottles make it easy to carry, easy to apply, and a fast mover in over-the-counter sales.. Part Numbers Variations: CRL10