Silicone Fiberglass Sleeving for High Temp Cable Protection YUNZORI | Direct Factory Price | OEM & ODM Supported ISO 9001:2015, FDA 21 CFR 177.2600, LFGB, RoHS, REACH Certified Product Overview Silicone Fiberglass Sleeving for High Temp Cable Protection is engineered and manufactured in-house by Dongguan Yunze Silicone Products Co., Ltd. This premium silicone sleeve/heat shrink is crafted from 100% platinum-cured silicone rubber (50°A Shore A, -40°C to +250°C / -40°F to +482