Originally Posted By: dvalley
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Laminated Asbestos Felt: Often called asbestos sponge felt, this product was made by all manufacturers
of the 85% percent magnesia, in both pipe covering and block or sheet form. It is a very heavy product, weighing about 30 lbs. per cubic foot. It was supplied as pipe covering in sectional form for all commercial pipe sizes.
Here's a link to the asbestos list containing Johns Manville insulation...
Scroll down to the J's
Massachusetts Certified Home Inspections
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