Intumescent Paint NSW is the kind of retarding paint. Once exposed to flams of fire, it starts expanding for becoming black foam or char barriers that could be approximately one inch thick and it coats the whole surface which the paint needs to be applied to. The char barriers then cuts off the much needed fuel to fire and also protects underlying structure giving extra time to evacuation of occupants of the building and letting the fire fighters reach quickly and quench off the blaze in order to keep the damage minimum.
Development of intumescent paint
Development of intumescent paint
Development of the intumescent paint started in 1980. But, until recently it has not been used widely. A lot of earlier versions of the paint were quite difficult to be applied and a very thick coat was important. They used to be lumpy in firm and texture and application required trained operator with some specialised equipment. Some of the paints contained carcinogenic chemicals or toxic chemicals or even had some foul stench. Others were mainly based on the fire retardant chemicals held in the water. This means that they didn’t bond properly with the surface on which they were applied. In case of fire, the char barriers were easily broken and used to become ineffective. In spite of such issues, early types of the paint used to play a significant role in some situations.
These days, the paints have improve a lot they can be applied easily with the help of a roller, rush or a sprayer.
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