322
people found this helpful, as of 2023
ranked #75,809 most helpful
out of 571,544,897 reviews
★★★★★
Use a clothes steamer to expand
I didn’t want to drop these into the washing machine or in a bucket of water.
On other sound foam the hack is to use a hair dryer but that didn’t work on these so I tried a steamer. #perfect
the product in question
Sonic Acoustics 12 Pack Acoustic Foam Panels 0.4" X 12" X 12" Sound Absorbing Panel, 3D Unique Soundproof Foam Insulation, Foam Padding Used in Home & Offices (12 Pack, White)
4.1★ · 713 ratings, as of 2023