Panel Montaj

Fire Resistant Panel

The fire class of a highly flammable substance Polyurethane is B3. Even with the help of a small flame source that quickly catches fire and the fire continues to burn even after cessation of contact with the source. Polyurethane flame retardant classification, according to needs over time, non-flammability class B2 increased with the use of flame retardant additives. However, to minimize the effects of fire class B2 on fireproofing products are needed. A new macro molecule called is created polyisocyanurate (PIR) by reaction of isocyanate that is one of the basic polyurethane foam components and isocyanate molecules.

Polyisocyanurate is created as a result of chemical reaction between polymeric methyl diphenyl isocyanate or methyl diphenyl isocyanate and polyol and what polyisocyanurate differs from polyurethane is combination amounts of methyl diphenyl isocyanate and polyol components. Methyl diphenyl isocyanate amount used far PIR production is much and it reacts each other apart from polyol. Then isocyanurate chains whose chemical stability is higher at high temperatures are created. These chains are stronger than normal polyurethane chains. In compared with PUR, due to difference of its structure, it's flammability and smoke generation is low.

It is in B s1 d0 (TS-EN 13501-1) non-combustion class.
Heat conductivity coefficient of it is quite low (λ= 0,020-0,022 W/mK).
It has a high combustion resistance.
Combustibility and smoke generation is quite low according to PUR.
It provides heat insulation, it does not transmit air or water.
Due to the changes made in its structure, it blocks the contact with oxygen so it does not get flamed.
As it does not involve any carcinogen, it can be used in health and food sector safely.