Silikomart Silicone Baking Mat 40x30cm This baking mat by Silikomart (Fiberglass) is made of silicone and is reinforced with fibreglass. The silicone mat can handle temperatures from -60 C to 230 C. The baking mat can therefore be used in the freezer, microwave and oven. For baking biscuits, for example, this silicone baking mat is also suitable for rolling out fondant or marzipan.