| 摘要 |
A water base, hardenable coating composition is disclosed for use on the inner or air conducting surfaces of fibrous glass thermal insulation employed in heating, cooling or ventilating conduits. The coating comprises, by weight: 70 to 90 percent of aluminum or magnesium hydrate; 5 to 20 percent of a binder such as vinyl acrylic latex or polyethylene vinyl acetate latex; and 1 to 10 percent of a flame retardant such as a sodium borate or boric acid.
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