Application: RIKEN RMC AP36M adopt the special treated FEPA Aluminium Oxide grain, it has the long durability life, the sanding surface is fine. The backing is flexible and waterproof latex paper. Special super coated can make dust removal ability, avoid clogging and static problems, improving the sanding efficiency and lifetime of the products. Maximize the performance of the products. http://www.rikenmt.com/products/ap36m-velcro-disc-psa-disc.htmlAll Rights Reserved