DOWSIL™ Hi-Temp Sealant Red 10.3oz Cartridge


A one-part acetoxy cure silicone sealant that cures to a tough, rubbery solid at room temperature on exposure to water vapor in the air.

  • Bag filters on smoke stacks
  • Sealing fired heaters, access doors and flanged pipe joints, flues on gas appliances, heating elements in appliances, plywood drying oven doors, windows in oven doors
  • Other critical bonding and sealing where parts must perform at high temperatures

  • Cures to 100% silicone rubber
  • Resists the effects of sunlight and weather extremes
  • Fast cure, high strength
  • Performs in high temperature applications, up to 500°F (260°C) continuously, and 550°F (288°C) intermittently
  • Remains flexible, will not become brittle, crack, shrink or chalk
  • Supplied in removable, reusable, resealable nozzle which saves time and sealant
Typical Properties
Appearance Opaque
Chemistry Acetoxy
Color Red
Durometer - Shore A 30
Movement Low
Movement Capability 25 %
Resistance Type UV, Water
Shelf Life 900 Days
Substrate Non-porous
Tensile Strength 325 psi
Volatile Organic Content 33 g/liter
Application Benefits
Special Features High Temperature Resistance
Processing-Formulating Benefits
Cure System 1-Part Cure
Room Temperature Cure - Hours 24 Hours
Where Used Job Site
Working Time 5 to 10 Minutes

Additional information

Weight 1.3 lbs
Dimensions 1 × 1 × 1 in