High Temperature Repair Putty – INCURE

Facing high-heat challenges? High-temperature putty offers extreme heat resistance, durability, and easy application. Ideal for furnace repairs, exhaust fixes, and more. Find the perfect putty for your needs.

Why Choose High-Temperature Putty?

High-temperature putty stands apart due to its unique properties:

  • Extreme Heat Resistance: Withstands intense heat, from hundreds to over 2000°F (depending on the specific formula), ensuring reliability in the hottest environments.
  • Versatility: Ideal for a wide range of repairs, sealing, and even creating custom, heat-resistant parts.
  • Easy Application: Most are pliable, allowing for simple shaping and application on uneven surfaces.
  • Durable Bond: Cures to form a strong, permanent bond for long-lasting results.
  • Fire-Resistant Options: Some formulas offer added fire resistance for enhanced safety.

Where to Use High-Temperature Putty:

High-temperature putty finds applications across various industries and projects:

  • Furnace & Fireplace Repair: Seal cracks, gaps, and leaks in furnaces, fireplaces, and other heating appliances.
  • Exhaust System Fixes: Repair cracked or leaking exhaust pipes effectively.
  • Boiler Maintenance: Seal minor leaks and gaps in boilers.
  • Custom Gaskets & Seals: Create heat-resistant gaskets and seals for ovens, grills, and other high-temperature equipment.
  • Electrical Insulation: Insulate electrical components exposed to heat (check specific product recommendations).


    Incure Epo-Weld™ Series Core Products 
    ProductDescriptionColorViscosity (cP)Number of ComponentsSpecific Gravity (gms/cc)Air Set (hrs)Heat Cure (°F, hrs)Max. Temp. (°F)
    HTCP-550Repairs cast iron and steel parts up to 3/8″ thick to 2000°F. Water-based paste putty.Dark GreyPaste11.52-4200, 2-42,000
    HTCP-650Thixotropic paste putty for sealing boiler doors and molten metal systems. Easy to apply and removable. For uses to 2300°F.Brownish GreyPaste11.271-2200, 12,300
    HTCP-750Repairs cast aluminum parts up to 1/2″ thick to 1400°F. Water-based paste putty.Light GreyPaste21.82-4160, 1-21,400
    HTCP-850Organic caulk putty for sealing high-temperature flanges and joints to 950°F, 750 psi. Cures into a tough, pliable, inert material.GreyPaste11.09N.A.400, 1 or 225, 6950
    HTCP-950Repairs cast iron, steel, and stainless steel parts on vertical surfaces and up to 1/2″ thick to 2000°F. Water-based paste putty.GreyPaste11.92-4200, 32,000
    Package Size: Pint / Quart / Gallon (HTCP-850 is only available in 11oz tube)

Selecting the Right High-Temperature Putty:

Choosing the best high-temperature putty requires considering these crucial factors:

  • Temperature Rating: Match the putty’s maximum temperature rating to the highest temperature it will encounter. Always choose a rating that exceeds your project’s requirements.
  • Material Compatibility: Ensure the putty bonds effectively with the materials you’re working with (e.g., metal, ceramic).
  • Application Needs: Determine if you need a moldable putty for repairs or a more rigid one for creating parts.
  • Cure Time & Temperature: Select a putty with curing requirements that fit your project timeline and resources.
  • Fire Resistance: If fire safety is a priority, choose a putty specifically designed for fire resistance.

High-Temperature Putty: Your Heat-Resistant Solution

High-temperature putty is a powerful tool for tackling repairs, sealing leaks, and creating custom components in extreme heat environments. By understanding its benefits, applications, and selection criteria, you can confidently choose the right high-temperature putty for your project, ensuring lasting performance even under intense heat.

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