High-Temperature Sealing Made Easy

High-Temperature Sealing Made Easy

DOWSIL™ Hi-Temp Sealant Red is a silicone sealant that utilizes an acetoxy cure formula and contains iron oxide, which enhances its ability to endure extreme heat. This sealant is ideal for sealing various components such as fired heaters, access doors, flanged pipe joints, flues on gas appliances, plywood drying oven doors, and oven door windows.


  • Cures to 100% silicone rubber

  • Resistant to 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


  • 99150445, 90 mL, Red, 12 / 3,000

  • 4045040, 305 mL, Red, 12 / 1,296

To order DOWSIL™ Hi-Temp Sealant Red call 270-765-2212 or email orders@LentusLLC.com.

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