... . Are of characteristics of heat resisting and cold resistance,Temperature range fron -40 to 230 centigrade.3. Non-adhesive surface, easy ... of 100% food grade silicone with FDA,SGS certificate. Temperature range:-40 -- +25 Safe to use in ovens,microwave ovens,dishwashers ... . Hardness:40,50,60,70,80 shores. Various colors available. A range of designs available,clients' designs are welcome and will be ...