Here's what I posted on your question on AGF:
Barbara - don't use hardener or kiln wash or anything on blanket type insulation.
It stiffens the blanket, but it also makes it brittle, and when it breaks, you get some very nasty dust.
Leave the blanket uncoated, and use stainless wire to tie it in place.
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Chaotic Glass: Safety for the glassworker, and random thoughts and opinions on the state of the glassworking world To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
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