Silpat is a product that takes the place of using aluminum foil or parchment paper for baking; According to advertising, the mats never need oiling if cared for properly. According to Demarle, the Silpats are nonstick sheets are made of woven glass coated with food-standard silicone.
Demarle advertises a useful life of 2000-3000 uses or 2 years, whichever is less. Note that you cannot use the Silpat under the broiler. It will ruin the mat and void the warranty.
You can use these for just about any kind of baking: cookies, breads, chicken nuggets, pizzas, etc. The advertising is true. Virtually...