HOME Search by Other Features EN-45545-2 EN-45545-2 Advanced Search Product Category Millable Silicone Rubber (HCR)(1) Hardness Durometer A 0 - 100 Features Fireproof low smoke(1)Flame retardance(1) Appearance Charcoal(1) Other Features EN-45545-2(1) Results 1 KE-1734-U KE-1734-U Fireproof gaskets, etc. It is flexible and can be extruded. The amount of smoke emitted is very low. It also makes it easier to secure visibility in the event of a fire. When burned, it becomes hard and sintered like ceramic. There is little dimensional change even after sintering.