Flexible fiberglass mat coated with nonstick silicone, used to line baking sheets. Available to fit full and half-size sheet pans. Also used in sugar work.
They withstand temperatures up to about 480°F (250°C) and can be reused indefinitely if well cared for and not folded or creased. There are several manufacturers of silicone mats, but they are often known by one brand name, Silpat.
