HRF - Heat Resistant Filler 1000°C

97% of 100

Vitcas® Heat Resistant Filler is a perfect solution for filling in small cracks and joints in high-temperature environments. Ideal for use with High Temperature Plasterboard joints, this filler offers unmatched heat resistance, up to 1000°C / 1830°F, ensuring durability and reliability.

Special Price £11.99 £9.99 Regular Price £23.99

Vitcas® Heat Resistant Filler is a premium quality solution designed specifically for high-temperature applications. Ideal for small cracks and jointing, this filler is specifically engineered for compatibility with Vitcas High Temperature Plasterboard and Heat Resistant Plaster. Providing heat resistance up to 1000°C / 1830°F, it guarantees superior performance under extreme conditions.


  • Ready-mixed, easy-to-apply material
  • High-temperature resistance up to 1000°C / 1830°F
  • Versatile applications - perfect for filling in small cracks and jointing
  • Compatible with Vitcas® High Temperature Plasterboard
  • Can be sanded before painting for a smooth finish
  • Durable and robust, withstanding harsh conditions
  • Fast-setting formula - Saves time and effort
  • Colour: Off White


  • Ideal for filling in small cracks on the chimney breast, particularly around cassette stoves, inset stoves, and fireplaces, providing a robust and heat-resistant repair.
  • Perfect for sealing the joints of Vitcas® High Temperature Plasterboard, ensuring a secure and resistant seal.
  • Excellent for repairing and filling in areas using Heat Resistant Plaster, offering a seamless and durable restoration.


  1. Preparation: Before you begin, make sure the area you plan to fill is clean. Remove any dirt, dust, and grease thoroughly.
  2. Cartridge Prep: Cut off the top of the cartridge and screw on the nozzle. Trim the nozzle according to the size of the area you need to fill.
  3. Application: Utilise a cartridge gun to apply the filler to the desired area. Ensure to distribute evenly.
  4. Smoothing: Use a clean scraper to smooth the surface of the filler. Remember that the material sets faster when warm, so work accordingly.
  5. Finishing: Once the filler has set, it can be sanded before painting for a polished look. Please note that certain types of emulsion paint may require a stabilising primer before application.
More Information
Product GroupSealants
Coverage of cartridge

Coverage: A guide to the amount of the material contained in one 310ml cartridge

Bead dia.(mm)

Length approx. (metres)









ColorOff White
Ready to UseYes
Drying Time24h / +20°C (+68°F)
HS Tariff Code3816009000
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Can this filler be sanded down?
Yes, it can be.
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