HENSOMASTIK® 5 KS Farbe and HENSOMASTIK® 5 KS viskos are water-based, ablative, fire-protection coatings to create joint seals to EI 90 in ceilings with a joint width of up to 100 mm max. and membranes to EI 240 in floors with a joint width of 75 mm max. Indoor and outdoor applications between concrete, reinforced concrete, cellular concrete, lime sandstone and brickwork. Exterior applications.

Product characteristics

  • Contains no solvents, APEO, halogens, borates or plasticisers
  • Water-impermeable in accordance with DIN 1048
  • Oil and petrol resistant
  • Weatherproof / UV resistant in accordance with DIN 53 384
  • Ageing resistant, mechanically stable
  • Flexible when dry even when thick layers have been applied
  • Temperature resistant to -40 °C when completely dry


  • Environmental product declaration No. EPD-RHG-20140204-IAA1-DE
  • Registration in the DGNB Navigator: CDDWRA