"There are two different plastic choices available for Gateway discs:
Gateway's Shur-Grip or "S"-series matted version of our disc plastic is a high end version of the "dx" or "d" plastic of our competitors. This type of polymer offers a firm, solid feel, grippy surface, and great performance in the rain or extreme heat. The "S"-plastic allows the disc to break in slowly without changing the flight characteristics after just a few hits.
Gateway's pro-line polymer is the Evolution series or "E"-series. Gateway golf discs have evolved into the front runner in polymer technology with these new polymers. The Evolution series polymer, a TPU from BASF, has a surface durometer of 60 D-shore. It is virtually scratch-, scuff-, dent-, crack-, and chip-proof. The durability is as good as any plastic on the market. The smooth surface and low profiles make each model a little faster while still very comfortable in your hand."
