15” x 18” 2 PCS TONESPAC Instant Pack Quick Expanding Foam X-100 Packaging Bag for Packaging and Shipping

Did exactly as you would expect it to do. Used to to ship my computer over seas and everything worked just fine.

Worked as intended and the PC arrived in one piece. No complaints.

These provided me with peace of mind when I shipped a pc to a friend in another state. Definitely better than packing peanuts.

These work just fine. You do need to be careful when you pop the left internal bag. I didn't have a problem, but I can understand someone having an issue if the apply pressure on it that directs it contents upward instead of to the right. You pop the left bag - I used my fist and rolled my fist from left to right to push the contents to the right. I repeated the same things on the right side except my fist roll was right to left. Once I knew that bags had popped, I just changed sides the 15 to twenty times they tell you to do. The bags to get pretty hot, so I had a thin wood panel that I could use to keep the top level in the box. Now, the real detail - I used the 18' x 18" bags, so what you get is a smaller size that has some height. A rough idea is the 18 x18 did a 15x12x3 volume. The more you press down, then you will get a lower volume. I am working on a 40x12x12 box that contains two pieces of ceramic artwork. They are long and can sit side by side in the foam. It will take 12 of the 18x18 bags to fill the box to the top. The product certainly doesn't do as well as the commercial machines, but the price it definitely lower doing it yourself when when you have to use 12 bags.

I like that there are a few of these included because it afforded me the ability to do a test run. I successfully secured my 3090 GPU in my PC tower while leaving it in the motherboard during shipping and there wasn’t a hint of damage. Couldn’t ask for more.One weird thing was the box they shipped these in had a pattern of lipstick kiss marks all over… I definitely thought it was a much spicier item as I opened the package.

I got the two pack— one barely expanded, one expanded at warp speed.I followed the directions the same way for both bags, pop the inner left bag, then the right, and quickly squish back and forth 15-20 times.For one bag, popped both L + R, gave it 20, maybe 30 squishes back and forth, and nothing was happening— not expanding, not heating, nothing. I could see the liquid spreading out in the bag a bit, but no volume. After about 2 minutes it got a little warm and inflated a bit in a somewhat comical shape— did not remotely fill the bag and definitely did not expand enough pack anything. Unfortunate.For the other bag, I did the exact same process but stopping after 15 back and forth mushes, because it expanded insanely fast. It almost filled the bag, (didn’t make it to all 4 corners which is a tad annoying,) but it expands almost too fast to actually pack with if you’re planning to mix it, place it in a box, and then place your item on it. Wish it kicked a little slower, but I’ll chock this failure up to me being unfamiliar with its expansion rate.On top of that, the bags are so wildly thin. Snagged the bogus bag on the edge of the box after taking photos of it, and it just tore right open. Spilled weird little hard un-inflated foam crumbs everywhere.I’ve seen similar products from other brands work great in packages I've received— never seen this particular brand in any of these successful boxes. Now I know why.Also fun side note, I saw a review saying the bags came in a lipstick print box. I figured hey, maybe the shipper just ran out of regular boxes. But nope! That's just how the ship I guess, haha. spicy box, frustratingly mild product.

I found it very difficult to spread the foam into the whole bag and place the item before the foam hardens. The foam literally hardens in a few seconds.

I bought this in order to feel more at ease bringing my gaming computer on a plane. For anyone that has one, you know the stress associated with having your graphics card and other components inside get jostled around. Yet with this expanding packing foam I found it extremely quick to bolster my computers internal integrity while also not needing to worry about the static discharge associated with actual packing foam. When I got to my destination, it was easy to remove and I was actually able to save the now molded piece of polymer so that if I take my PC anywhere, it is safe. Definitely would recommend this product.

Trip to the hospital and hours of clean up later its safe to say I regret ever finding this product.Foam package exploded into my eyes which I require more appointments with an optomitrist to judge the damage. Went all through the PC and all over the floor and walls.Use other brands stay away from this one.