Aluminum Oxide 514C Gold 4 1/2" x 27yd Paper Foam Roll P320 R 514C-4.5x27F-P0320 Starcke #: R 514C-4.5x27F-P0320. Smooth latex paper backing with foam for optimal flexibility for hand sanding plain and contoured surfaces.. Perforated sheet roll with easy tear-off.. Increased life due to an optimized abrasive grain coating in combination with a special anti-clogging system.. Exceptional results in dry sanding and finishing applications for auto body, marine, paint, primer, metal, plastics, fiberglass and composites.. Professional grade, German quality.. Stocked & shipped from the US. Starcke is family owned with over 100 years of experience in manufacturing abrasives. 514-4.5X27F-320