Fireproof repairing compound TKK

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Product description

Fescon Fireproof Repairing Compound is a compound with a cement binder, designed for the repairs of cracks and cavities in the fireboxes of household fireplaces. 

  • Easy to use
  • Heat resistance +1300°C
  • Layer thickness 5 - 20 mm
  • Good workability characteristics


  • Fireplaces, ovens, grills, ground ovens, and their fireboxes and roofs
  • Can be used for patching cracks in the shell and jointing fireplaces and sauna stoves
The product is listed in the portal for building products that can be used in Nordic Swan Ecolabelled buildings.
GTIN code Product name Product number Package size
6416841631510 FIREPROOF REPAIRING COMPOUND TKK 2 KG 63151 2 kg

Work instructions

Mix around 5 dl of clean, room-temperature water into 2 kg of plaster powder. You can use a straight-tipped trowel, jointing iron or a rubber glove to spread the plaster. In order to ensure adhesion, brush the patched location clean with a steel brush and remove any dust with a damp rag. Use a screwdriver to enlarge the cracks before patching. The durability of the patches is improved, if they are allowed to bind for a couple of days before heating. Be careful not to heat the oven too much the first time.

Storage and handling of waste
See the separate storage and disposal instructions

Water requirement 2.5 dl/kg
Type powder
Colour gray
Maximum grain size

2.0 mm

Package size 2 kg plastic container

18 months in the original package in a dry location

Layer thickness

5 - 20 mm

Workability time 1 h
Limitation of liability, product use notes and restrictions: Please familiarize yourself with Fescon Oy's general terms of delivery and the design and work instructions related to the product.