Eldfast Ceramic Sealant

A ceramic based material of swedish manufacture. Used to re 'parge' the interior of a chimney flue, sealing leaking joints and providing a protective ceramic coating on the flue walls. Extremely useful for sealing clay liners that are inverted or leaking and sealing cracks after chimney fire damage. Very resilient material and can resist temperatures in excess of 1000 degrees c. When applied does not effectively alter nominal flue dimensions so ideal for open fires. Good material for flue repair work.

Eldfast -
The Chimney Lining That Lives Up To Its Name!

Flue before eldfast
  • Lines leaking flues
    Suitable for all fuels
    Class 1 suitable for stoves and open fires
    Unique applications to smaller flue voids e.g. clay liners, gas flue blocks
    Designed to minimise disturbance to the household during installation
  • Leaking Chimneys
    The ravages of time, wind and weather, condensation, frost damage and chimney fires are some of the reasons why chimneys start leaking. Leakage can give rise to a number of problems, such as the smell of smoke indoors, inadequate updraught, the risk of fire or carbon monoxide poisoning.
  • Chimney Cleaning
    Before starting sealing and repair work the chimney should be cleaned mechanically to remove soot, tar and loose particles with steel brushes.
    Eldfast has been developed to meet today’s strict requirements and has all the characteristics you would expect of a modern lining and repair agent.
  • Sealing a Chimney
    After lining with the Eldfast method you will have a chimney that is leak-proof, very hard-wearing, completely fireproof, and gives a better updraught as a consequence.
  • Eldfast Is a ceramic material that does not contain lime or cement and can therefore withstand continuous exposure to extreme temperatures having been rigurously tested by BSRIA to conform to current building Regulations & Requirements after the 1st April 2002 changes.

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Eldfast plug from below at the start of lining.

Eldfast in process

Completed eldfast lined flue