Seal a box from the inside
#1
I have a a sealed box with some air leaks in it. Since its a custom box already carpeted i need to find a way to seal it from the inside. Silicon is to hard to work with in such a small area. I heard using fiberglass resin works but it seems expensive. Does anyone have any cheap idea's to fix this? There is only a 10" hole to work in so its kind of a tight space to work in.
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