The flame retardant rating of silicone rubber is evaluated based on different standards, and the following are two common evaluation criteria:
UL94 standard: developed by Underwriters Laboratories in the United States, used to evaluate the flame retardancy of plastic and film materials. The UL94 flame retardant rating of silicone rubber ranges from HB to V-0, and the flame retardant performance gradually improves.
National standard: According to Chinese national standards, the flame retardant rating of rubber is divided into five levels: FV0, FV1, FV2, FH1, and FH2, covering vertical and horizontal combustion tests.
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igh Strengh Liquid Silicone Rubber IOTA 28-Series
