According to Wurth Canada its Razer gold is a premium quality sandpaper that’s durable versatile long lasting and user-friendly. The 40 to 600 grit papers are made with C weight aluminum oxide paper while the 800 to 3000 grits are made of a lightweight silicon carbide grain and waterproof paper. Razer Gold uses a resin over resin system for superior adhesion and a statement from the company says the velour type discs are made with the industry’s heaviest and strongest velour backing. The product is specifically flexed during production and designed with two coats of stearate anti-loading agent. The release agent allows the disc to be neatly pulled off the backing pad making the disc reusable and the pad free from residue or glue.