The high temperature resistance of neutral silicone sealant is divided into three levels: ordinary, temperature resistant, and high-temperature special. The long-term working temperature is commonly 90-260 ℃, and the short-term peak can reach 300-350 ℃, and it is non corrosive to metals.
1、 Temperature level and applicable scenarios (core)
- Ordinary neutral silicone (building/doors and windows/kitchen and bathroom)
Long term: -20 ℃~90 ℃
Short term peak: 120 ℃
Representative: Jitai 199, Xika 150, ordinary neutral weather resistant adhesive
Usage: Doors and windows, curtain walls, kitchens and bathrooms, sunrooms (non high temperature areas) - Universal temperature resistant type (equipment/pipeline/electrical)
Long term: 150 ℃ (mainstream)
Short term peak: 180-205 ℃
Representative: Dow Corning 732 DOWSIL 895、3M 2000+
Usage: HVAC ducts, non direct fire areas in automobiles, electrical enclosures, general industrial seals - High temperature special type (industrial/high temperature equipment)
Long term: 200-260 ℃
Short term peak: 300-350 ℃
Representative: Letai 207, high-temperature resistant RTV silicone, specialized high-temperature sealant
Usage: Engine peripherals, exhaust pipes, high-temperature furnaces, ovens, new energy battery packs