Chemical
and biological stability
Contact with chemicals
can affect the properties of insulation materials. Insulation
boards made of rigid polyurethane foam are for the most part
resistant to the chemical substances used in the building industry.
This includes for instance most
solvents used in adhesives, bituminous materials, wood protection
products or sealing compounds. In addition, the insulation
material is not susceptible to the effects of plasticisers
used in sealing films, or to fuels, mineral oils, diluted acids
and alkalis, exhaust gases or aggressive industrial atmospheres.
PUR/PIR rigid insulation does not rot; it resists mould and
decay, is odour-neutral and physiologically sound for the intended
technical building applications.