XtraBond®150HT - High Temp Silicone

XtraBond® 150HT is a one part, easy to use, non slumping paste that cures to a silicone rubber when exposed to atmospheric moisture at room temperature. This product is formulated to perform at temperatures ranging from -80 deg. F to 500 deg. F continuous, and up to 600 deg. F for intermittent exposures.


  • Sealing around heating elements in appliances
  • HVAC Applications
  • Industrial Ovens
  • Furnace Vent Pipes
  • Engine Parts
  • Fireplaces
  • Smoke Stacks


  • Approved in High Temperature Areas
  • Up to 600 Degrees F
  • Insulates Thermally
  • Insulates Electrically
  • Non Sag Red Formula


Complies with FDA Regulation 21 CFR 177.2600
Meets Federal Specification TT-S-001543A, TT-S-00230C, ASTM C920-86NSF Standard 51

Technical Specs

Skin Over Time 6 minutes
Tack Free Time 15 minutes
Cure Time 1/8" Bead 24 Hrs
Elongation 500%
Hardness (Shore A) 30 +/- 5
Tensile Strength 350 psi
Extrusion Rate 335 g/min
Flow/Slump None
Lap Shear None
Tensile Strength 250 psi
Staining None
UV Resistance Excellent



This product is available in the following colors:

  • Red


The XB150HT is available for the following industries


This product is available in the following configurations:

  • 10.1 fl oz cartridges: Fixed-Tip and Twist-On Nozzles.

Limited Lifetime Warranty

This product is guaranteed to give satisfactory performance if applied in accordance with the label directions. Liability to Premier Industrial Supply, Inc. (Premier) is limited to a full refund of the purchase price or product replacement if product is proven defective. Premier shall not be liable for loss or damage, whether direct, consequential or incidental. There are no other warranties expressed or implied including the implied warranty of merchantability or fitness for a particular purpose.