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Fitherm NP

Fitherm NP phospate based product

Product Description

Fitherm NP is an – phosphate based product – intumescent material that foams up pressure-free, forming a firm and heat-resistant foam in case of fire. Fitherm NP fills gaps and cavities and builds up a very effective barrier against fire and smoke. Fitherm NP is a halogen free product. It can be laminated with a self-adhesive tape on one side for fixing.

approx. 1.35 g/cm³

Expansion temperature
starting from 200°C

Expansion factor (30min,400°C)
up to 60-fold its original thickness

Direction of action:
Mainly across the surface

Forming inflatable body:
Stable, finely porous, thermally insulating layer

Thermal conductivity:
0.35 W/mK


  • Fitherm NP (phosphate based product) is developed for a wide range of applications where an intumescent material is necessary to maintain the system integrity and insulation in case of fire. These systems are for example:

    • Fire protection doors from wood, steel or aluminium
    • Glazing elements
    • Component joints
    • Pipe penetrations and cable transit systems

Fitherm NP should be stored under room conditions (best above 10°C). During handling and processing the wearing of protective gloves is recommended.

Fitherm NP is available as flexible rolls in the following standard dimensions:
Thickness: 1mm,1.5mm or 2mm;
Width:  10mm, 15mm and 20mm;
Lenght: 25 meter with or without self- adhesive backing, Other sizes on request.