ASI 600 Hi-Temperature Red Gasket Maker is a one-part, moisture curing, RTV (room temperature vulcanizing) silicone that cures to form a tough rubber gasket. ASI 600 was specifically formulated to be used as a formed-in-place gasket where operating temperatures up to 310°C (600°F) are reached intermittently. ASI 600 high temperature silicone will remain permanently flexible and provides excellent resistance to aging, vibration and shock.


The primary use for ASI 600 high temp siliconeKEY_TAB is formed-in-place gaskets in high temperature applications to replace conventional paper and cork gaskets. Such uses include:



  • automotive

  • valve covers

  • axle housings

  • water and oil pump seals

  • thermostat housings

  • bearing cap seals

  • timing chain covers

  • fuel pumps to blocks

  • solenoid covers Industrial

  • pump and compressor gaskets

  • appliance door gaskets

  • humidifier gaskets

  • air conditioner gaskets

  • repairing torn silicone rubber sheets

  • ductwork gaskets

  • dust collection components

  • wire and cable insulation

  • furnace door gaskets




ASI 600 high temperature siliconeKEY_TAB is ready to use and requires no mixing or additives. The cure mechanism begins as soon as the sealant comes in contact with the air. At conditions of 25°C (77°F) and 50% relative humidity, the sealant will skin in 10 minutes and cure within 24 hours (1/4 bead), ultimate cure in 7 days