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We have been a partner to industry for many years and, with our HENSOTHERM® and HENSOMASTIK® product lines, we offer a wide range of options and solutions for passive fire protection, e.g. in aviation, shipping, railway vehicles, for power plant construction, in the field of renewable energies, the automotive sector, e-mobility, electrical and information technology and for door construction. Our fire protection systems are already used on numerous components made of different materials and substrates, such as various plastics, wood, sheet metal, aluminium, steel, stainless steel, electrical cables, pipes, insulation and also for sealing joints.

HENSOMASTIK® K 2000 is a flexible and non-combustible special adhesive. It bonds mineral fibre boards, serves as an installation aid when working with insulating materials and assists when bonding and sealing fire-protection boards for the construction of ventilation systems. Its high degree of elasticity makes it suitable for joining materials with very different coefficients of thermal expansion, as well. HENSOMASTIK® K 2000 is therefore used in the construction of railway carriages to fix insulating material between exterior sheet metal / aluminium panels and interior cladding.

Product characteristics

  • Classified in accordance with DIN EN 13501-1 as A2-s1, d0 when 400g/m² are applied
  • Classification in accordance with DIN EN 45545-2 (R1-HL3)
  • Construction material class A2 (non-combustible)
  • Organic material, permanently flexible – does not become brittle
  • Temperature resistant up to +750°C
  • Environmental friendly
fire protection adhesive

HENSOTHERM® 980 KS is a two-pack (2C) solvent-free fire-protection paint and can be used indoor and outdoor on rolling stock. It is particularly suitable for outdoor use due to high mechanical strength and resistance against climate influences. HENSOTHERM® 980 KS impresses with its working properties such its optimal pot life,
its thin layer thicknesses and its maximum achievable corrosivity category of C5 high.

Product characteristics

  • Classification in accordance with DIN EN 45545-2 (R1/R7-HL3)
  • Optimised pot life and drying times provide a trouble-free processing even by using high performance 1C airless equipment
  • Economical due to high coverage rate and fast drying time / short lead times
  • Corrosion protection requirements up to C5 high in the system usage (primer + fire protection coating + top coat) on steel elements.
  • High mechanical strength during transportation, assembly and use
  • 2C top coat can be supplied in RAL, NSC colour or according to individual colour sample
  • Solvent free, AgBB-tested, VOC emission class A+, free of halogens, alkylphenol and benzyl alcohol
fire protection 980ks

HENSOTHERM® Spachtel universal / HENSOTHERM® 7 KS viskos
Both products are fire-protection joint and sealing compounds for indoor use between metal and solid constructions materials and for cables and pipe transits.

Product characteristics

  • Classification in accordance with DIN EN 45545-2 (R22/R23 – HL3)
  • Contains no halogens, APEO (alkylphenol ethoxylate), borates or plasticisers
  • Non-VOC, VOC emission class A+, AgBB-tested, LEED
  • Can be painted over when completely dry
fire protection railway

HENSOMASTIK® 5 KS / HENSOMASTIK® 5 KS viskos are water-based, ablative, fire-protection coatings which can be used on electrical cables (single / bundle or in
trays), on fresh and waste water tanks and on fibre insulating boards.

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
  • If completely dry temperature resistant down to -40°C
  • Environmental product declaration No. EPD-RHG-20190171-IAA1-EN
  • Non-VOC, VOC emission class A+, AgBB-tested
Fire protection railway cable tray

HENSOTHERM® 2 KS INNEN weiss is an intumescent fire-protection coating for interior wooden structures. It can be used on wooden floors underside. It is used like a normal paint with a brush, roller or sprayer.

Product characteristics

  • Fire behaviour is classified B-s2, d0 according to DIN EN 13501 (SBI-test)
  • Contains no solvents
  • Contains no halogens, APEO, borates or plasticisers
  • Colour: white matt
  • Non-VOC, VOC emission class A+, AgBB-tested
fire protection wood

HENSOTHERM® 7 KS is an intumescent fire-protection coating for use on both metal and plastic surfaces. HENSOTHERM® 7 KS is used as a sound-absorbing coating for thin-walled sheet metal structures and as a fire-protection coating for aluminium and sheet metal structures, plastics and insulating materials. HENSOTHERM® 7 KS can thus be used in interior and protected outdoor area (without driving rain!).

Product characteristics

  • Classification in accordance with DIN EN 45545-2 2016
  • Sound-absorbing effect with a loss factor d of 0.02 to 0.31, in accordance with DIN 53440 / DIN EN ISO 6721-3
  • Contains no halogens, APEO, borates, fibres, plasticisers or asbestos
  • Non-VOC, VOC emission class A+, AgBB-tested, LEED
fire protection metal plastic


Self-adhesive, intumescent fire-protection flexible fabric based on expandable graphite. Flexible, easy and fast installation.

Product characteristics

  • Classification in accordance with DIN EN 13501-1
  • ETA-16/0369
  • Applicable indoor at fire dampers, switch boards, cable boxes etc.
  • The fabric has a high sound-absorbing property.
7 KS Gewebe SKL

HENSOTHERM® 7 KS Gewebe 50 / 100 / 125
Intumescent fire-protection fabric for the penetration of e.g. plastic and composite pipes in flexible walls, solid walls and solid floors.

Product characteristics

  • ETA-16/0369 and ETA-15/0295
  • Low space requirement due to low installation height
  • The fabrics have high sound absorbing properties.
  • Flexible, easy and fast installation.
7KS Gewebe 50

Fire protection solution for wiring boxes. HENSOTHERM® 7 KS HWD Pad is a self-adhesive and intumescent fireprotection fabric pad for the penetration sealing of hollow wall and flush wiring boxes for electrical installations.

Product characteristics

  • ETA-20/1306, tested in accordance with DIN EN 1366-3
  • Fire resistance class EI120
  • Self-adhesive backing
  • Simple installation and assembly
  • Costs less than fire-proof equiped power sockets
  • Highly flexible, simple retrofits
  • Small space requirements, only 1mm thick
  • Free of solvents

HENSOTHERM® RM 30 / RM 50 / RM 100
Fire protection collar for single pipe lead-throughs in walls and floors. Fire resistance rates up to EI 240. Plugless installation. Bolted only.

Product characteristics

  • ETA-20/1308, tested in accordance with DIN EN 1366-3
  • Installation with bolts or threaded rods (no plugs)
  • Suitable for interior applications, wet rooms, and covered exterior spaces (without driving rain!)
  • Flammable pipes tested with and without coupler
  • Tested with and without PE soundproofing
  • Contains no solvents, halogens, or plasticisers
RM 30 RM 50 RM 100


Our core competence – your competitive edge
We offer development, testing and production of intumescent and ablative building materials, components and coatings as a service – also as a partner for research projects, e.g. under the German Act on Tax Incentives for Research and Development or other EU programmes.

These properties can also add value to your product. Just turn our know-how into your competitive edge!

Fire protection solutions to suit your individual requirements.

Contact us, we’d be happy to advise you!
Phone: +49 40 72 10 62-48 or e-mail: 

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