18” x 24” 2 PCS TONESPAC Instant Pack Quick Expanding Foam X-600 Packaging Bag for Packaging and Shipping

Used a few of these when moving, to protect my computer tower. They worked great! After a two thousand mile drive across the country everything was still in one piece and the foam remained as stiff as when I first set them up. Would definitely use again

Did what it claimed. Caution, watch videos. Expands very quickly after mixing. You have to be ready to insert your cargo. Purchase oversize of your box as its flat dimensions shrink as it swells.

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 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.

If I could leave 0 stars I would. Horrible product. I went to pop the bag to cover the components in my computer. I had to rush to get it in my computer and close the lid. It blew up so quick I barely had anytime. The the bag popped and got the liqud and foam everywhere on my motherboard and inside the fans of my graphics card. It even shot out the side of my vents and fans and got all over me. Ruined a $7500 dollar computer. I am so pissed. I should of read the reviews before I bought this. Horrible product and now I am out of a computer.

I love these bags. Once activated you have to move really fast, and I mean fast. To get it in place. Have the box, the item and the bag ready and works best with 2 people working together. But these got my collection of semi-precious rocks moved in a crappy UHaul with no breakage whatsoever, not even shifting in the boxes. I’m very pleased with these.

I got the two pack to fill the cavity of a PC I was shipping. One was okay, expanded about 1” - 1.5”, a bit less than expected but fine enough. The second one, same process, same mix time, same application, but it expanded half of that at best? So essentially useless on the second one.

The product is a perfect packing tool. It does take a few tries if you haven't used them before but after a few tries it came out perfect. There could be a little better info on the size of the pack you need for the box you an to use. Other than that trial and error gives you the perfect product for delicate item shipping.

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.