Convoluted Charcoal Egg Crate Acoustic Soundproofing Foam 82"x 108"x 2-1/2"

2-1/2" Convoluted. If you apply our spray adhesive glue lightly, only on the back of the tiles this will leave a temporary bond. If you apply our adhesive glue to both the mounting surface and the back of the tiles this will leave a permanent bond.

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