Kemwell Tecwool 825
Hydrocarbon Fire Protection Mortar Spray System


Kemwell Tecwool® 825 Mortar Spray

A mortar specially developed for passive fire protection against hydrocarbon fires

Kemwell Tecwool® 825 is a mortar made of rook wool, cement and small amounts of heat-resistant material and is specifically designed for fire protection for industrial applications and tunnels.

The cement content of Kemwell Tecwool 825® makes it highly robust. It looks like a monolithic block and is resistant to erosion and semi-exposed or partially covered areas.

Kemwell Tecwool® 825 has been tested in laboratories certified by ENAC or identical international entities in accordance with UNE, EN, ASTM, or similar standards. Likewise, real-scale tests have been performed in tunnels under particularly limiting conditions such as hydrocarbons modified curve (HMC), RWS curve.

Kemwell Tecwool® 825 adapts to a wide variety of supports, even when exposed to settlement vibrations or movements. It will not crack due to its adherence and flexibility.

The product resists fungi and does not corrode steel or release toxic or flammable vapours.

A pneumatic spraying machine is used to apply the mortar. This machine sprays dry Kemwell Tecwool ® 825 through the hose to the nozzle. Kemwell Tecwool ® 825 neutralises and mixes in the nozzle application where the mortar is mixed with spray water at the nozzle head.

The spraying machine supplies a flow of up to 30 kg/min. Mortar is applied with a spreading gun perpendicular to the support at a distance between 50 and 150 cm. Once the mortar has been applied, water should be sprayed to ensure optimum curing.

You can specify Kemwell Tecwool 825 with confidence.

  • High durability
  • Minimal material waste
  • Resistance to cracking
  • Non-corrosive
  • Long pumping range of spraying material
  • Variable finishes
  • Easy cleaning with water
  • Non-toxic
  • Asbestos and glass silica free
  • Tunnels
  • Petrochem
  • Powergen
  • Warehouses
  • Factories
  • Multi-storey car parks
  • Column encasement
  • Beam encasement
  • Wind posts
  • Cellular beams
  • Castellated sections
Finishes for Tecwool 825 Mortar

Kemwell Tecwool ® 825 can provide different finishes: rugged, smooth, painted, etc., according to different aesthetic requirements.

Once the application is completed and in order to obtain a smooth finish, a roller can be used and pressed slightly over the wet mortar until the desired finish is obtained.

It is possible to paint the mortar with elastic acrylic coatings to form a steam barrier. Before painting the mortar should be completely dry (28 days).

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