Heavy Duty Silicone Coated Fiberglass Fabric Thermally Stable Flexible for Marine HVAC Welding. Exceptional Heat Resistance: The fiberglass base and the silicone coating both contribute to excellent heat resistance. Enhanced Durability and Strength: The silicone coating boosts the fiberglass mesh's resistance to tearing, punctures, and abrasion, making it very durable even in heavy-use scenarios. Chemical Resistance: This material offers good resistance to various chemicals, oils, and fluids, extending its lifespan in corrosive environments. Water and Oil Repellency: The silicone coating provides excellent water and oil resistance, preventing absorption and damage, making it particularly effective for outdoor applications. Flexibility: Despite its strength, silicone-coated fiberglass remains flexible, allowing it to be easily cut, fabricated, and installed in various applications. Flame Retardancy: The silicone coating imparts flame-retardant properties, enhancing safety and making it valuable in fire safety systems and other applications where fire protection is critical. Low Smoke Production: Compared to other coated fabrics like those with PVC, silicone coated fiberglass produces less smoke when exposed to heat or fire, enhancing safety in enclosed environments.