Inorganic intumescent fire protective coatings

Details Inorganic intumescent fire protective coatings Inorganic intumescent fire protective coatings

C - Chemistry, Metallurgy

09

D

6/18, 117/32

C09D 5/18 (2006.01)

Patent

CA 1332654

ABSTRACT The invention disclosed is a fire resistant inorganic coating composition which intumesces when subject to high temperatures to form a substantially continuous heat insulating structure and retains this structure for prolonged periods at temperatures up to 1000°C. The coating composition comprises Image A composite fire-protective coating system is also disclosed which comprises a plurality of coatings sequentially applied to the substrate, typically aluminum, to be protected. Specifically, a first heat resistant, substantially air impermeable bonding layer and an inorganic intumescent layer as described above. An additional heat resistant air impermeable layer may be included as a top coat. Some applications may require an additional inorganic intumescent layer.

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