Product form

Bond-It HT30 Heat Resistant Silicone – 310ml

£4.35Incl. VAT

The Bond-It HT30 Heat Resistant Silicone – 310ml is a high-performance sealant specifically formulated to withstand extreme temperatures. Designed for...

SKU: BDHT30BL


7 products in stock Show extra info for delivery time


    • Same day shipping on orders before 14:00*

    • Discounted Trade Rates

    • Premium Products

    How much Sealant do I need? View coverage table

    Product Details

    • Description

      The Bond-It HT30 Heat Resistant Silicone – 310ml is a high-performance sealant specifically formulated to withstand extreme temperatures. Designed for applications exposed to heat, it provides a durable, flexible seal that remains stable under continuous high-temperature conditions.


      Ideal for professional and domestic use, HT30 is commonly used around heating appliances, flues, boilers, and metal joints where standard sealants would fail. Once cured, it forms a strong, heat-resistant seal that resists cracking, shrinking, and degradation.

       

      Typical Applications

      • Stoves and fireplaces

      • Flues and chimneys

      • Boilers and heating systems

      • Exhausts and high-temperature pipework

      • Metal-to-metal and metal-to-masonry joints

       

       

      Why Use a Heat Resistant Silicone?

      Heat resistant silicones:

      • Maintain performance at high temperatures

      • Prevent joint failure caused by heat expansion

      • Offer long-term durability in demanding environments

      • Provide safe, reliable sealing around heat sources

       

      HT30 is ideal where standard silicones cannot cope with temperature extremes.

    • Benefits

      Heat resistant silicone sealant for high-temperature applications

      • Withstands continuous exposure to elevated temperatures
      • Excellent adhesion to metal, glass, ceramics, and masonry
      • Flexible seal accommodates thermal movement
      • Durable, long-lasting performance
      • Suitable for internal and external use

    • How to Apply

      Ensure surfaces are clean, dry, and free from grease or loose material

      1. Cut the nozzle to the required bead size
      2. Insert the cartridge into a standard sealant gun
      3. Apply sealant evenly into the joint
      4. Allow to cure fully before exposing to high heat

    © 2026 The Sealant Shop