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Customized Size High-Performance Fire Insulation Sleeve for Thermal Protection. Customized Thickness: Wall thickness ranges from 0.5mm to 8.0mm with various inner diameters available. UL Certification: Flame retardant UL VW-1 and UL1441 certified for safety compliance. High Voltage Protection: Rated for >10kV with breakdown voltage between 10-15KV. Flexible Material: Braided non-alkali fiberglass yarn coated with high elongation silicone resin. Chemical Resistance: Resistant to slag, resin, abrasion, solvents, and corrosive chemicals. Fire Safety: Self-extinguishing properties that impede heat radiation and shed molten spatter. Moisture Proof: Waterproof, oil-resistant, and pollution-resistant for durable protection.