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| Flame retardancy |
If silicone rubber is brought close to a flame, it will not ignite easily; but once ignited it will continue burning. It is possible to impart flame retardancy and/or self-extinguishing properties by adding a small amount of flame retardant.
Some silicone rubber products have received UL94 V-0 certification according to the UL94 (USA) standards for flammability classification, shown at right.
When they do burn, almost no black smoke or noxious gas is produced during combustion because these products contain none of the organic halogen compounds typically found in organic polymer rubbers. They are used in consumer electronics and business equipment; in closed spaces such as aircraft, subways, and building interiors. These silicone rubbers contribute to making all these environments safer. |
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| Please refer to “Standard for Safety: UL94” (Test for Flammability of Plastic Materials for Parts in Devices and Appliances) by Underwriters Laboratories Inc.㈢ for UL94 Flammability Classification Standards. |
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