: Since it is closed-cell, it does not act like a sponge. I spilled water directly on it during a rainy shoot, and it wiped right off without soaking through to my gear. ⚠️ The Not-So-Good
: I was worried about hacking it up, but a sharp electric carving knife or even a standard utility knife sliced through it like butter. I achieved perfectly clean edges for my tool drawer cutouts. where to buy polyethylene foam sheets
: Because full sheets are large and cannot be easily vacuum-sealed without damaging their structure, shipping costs can get a little pricey if you aren't ordering in bulk or buying smaller pre-cut packs. 🏆 The Verdict : Since it is closed-cell, it does not act like a sponge
: When I first unwrapped the large sheets, they definitely had a strong chemical, plastic-y odor. I highly recommend letting them air out in a garage or ventilated room for at least 48 hours before locking them in a tight case with your gear. I achieved perfectly clean edges for my tool drawer cutouts
: Unlike standard squishy upholstery foam, this stuff is rigid enough to hold its shape while providing incredible shock absorption. My expensive camera lenses do not budge an inch.