Insulation coefficient: 0.045 Fire performance: Class A1 non-combustible material (Class A1: non-flammable, no flame) Material: ceramic fiber + single-sided aluminum foil Temperature resistance: 950-1400 C Material: ceramic fiber + single-sided aluminum foil Specifications: 1000mmx610mm/40*24in, thickness: 10mm/0.4 in, approx. 820 g 1000mmx610mm, /40*24 in, thickness: 20mm/0.8 in, about 1500 g 1000mmx610mm/40*24in, thickness: 30mm/1.2 in, approximately 1980 g Tips: Aluminum foil is a non-refractory auxiliary kit with some water resistance and high temperature resistance of approximately 200 degrees. When the skin comes into contact with the skin, the skin will be slightly itchy. There is no smell at high temperatures. You don& 39;t have to worry. Rubber gloves and masks can be worn. Children should not be in contact. Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it