High temperature caulking composition and method

Details High temperature caulking composition and method High temperature caulking composition and method

1977-03-10

1978-05-30

Whitby, Edward G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

10628716, 156329, 156 94, 264 30, B32B 3500

Patent

active

040921921

ABSTRACT:
A caulking composition and method, particularly for hermetically sealing coke ovens and the like having high temperature requirements. The composition is adhesive to metal surfaces at elevated oven temperatures, elastic to accommodate expansion, warping, etc. and drys to a crushable powder by the conclusion of the oven cycle. The composition comprises, by weight, 19 to 23% of a high temperature silicone oil, preferably about 20% dimethyl polysiloxane 20 to 34% of a thermally conductive white metal oxide, preferably zinc oxide, 20 to 34% of an inert particulate filler material, such as whiting and 22 to 35% of a hydrated alkaline metal oxide, such as hydrated lime.

REFERENCES:
patent: 2833664 (1958-05-01), Knapp
patent: 3885984 (1975-05-01), Wright

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