Fire retardant insulation spray coating method

Details Fire retardant insulation spray coating method Fire retardant insulation spray coating method

1990-04-02

1992-02-04

Lusignan, Michael

Coating processes

Spraying

4273978, 106600, 106605, 428446, 428450, B05D 302, B05D 102, B32B 906

Patent

active

050858971

ABSTRACT:
The use of a liquid mixture of a liquid alkali-metal silicate preferably sodium or potassium silicate and more preferably sodium silicate with an inert mineral filler selected from perilite and vermiculite, suitably in an amount from 5 to 50% by weight and a mineral powder suitably selected from aluminum trihydrate and Wollastonite in an amount such as to intumesce with said silicate and to form a non-porous ceramic coating when subject to fire and suitably in an amount from 2 to 25% by weight for the protection of steel beams and columns against twisting due to fire. The formation of such coating both insulates and protects the steel beam or column from the heat from said fire. Suitably the thickness of the coating is at least two inches and is preferably from 2 to 4 inches to achieve the protection.

REFERENCES:
patent: 3804701 (1974-04-01), Bognar
patent: 4088810 (1978-05-01), Lodge
patent: 4095985 (1978-06-01), Brown
patent: 4263048 (1981-04-01), Hacker
patent: 4288253 (1981-09-01), Venable
patent: 4842772 (1989-06-01), Withiam
patent: 4960621 (1990-10-01), Luckanuck

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