Instapak Quick IQHRT00-10#10 Bag 15" x 18" (Pack of 36)

Works great! Make sure to always continue mixing up until the 2nd pop. It also sometimes helps to use the first second to spread out the material in the bag, but take too long doing that and that will ruin the attempt.Basically if it is your first time using them, just accept that you will probably waste 1-3 while getting the hang of it.Also ventilation is a must! Really don't want to breathe in the vapors! It messes up your throat and lungs. If you have trouble breathing after using one, take a break outside for a while.

I purchased the 25x27 version of this and there is not nearly enough foam in the pouches. I wasted 6 of these trying to figure out the best way to get the most coverage from these. If you just mix them and put the product in like the directions state only about 1/4 of the bag gets filled with about 4-5" of foam. After reading other reviews it is best to mix them, then use your hands to spread the foam. Even when doing this, there is only enough foam to cover about 3/4 of the bag with about 1" of foam. For the product I was shipping I had to use 6 of these to fill the box but going by the dimensions I should have only needed 2-3. Glad I ordered the 24 pack, too bad I had to waste so many of them on one shipment.

Ever wonder how they make those custom foam packs? Wonder no more!These bags are very handy for packing items that are fragile and need a custom-formed mold. We use them, along with some flat foam, to make a carrying cases for a specialized computer equipment inside an ordinary hard shell suitcase.(The poor man's version of a Pelican case.)You lay the bag flat on the floor or table , and then at the bottom of the bag, there are two foam catalyst sacks labeled A & B that you can feel.. You push down on the A side and it will squirt the contents of the A sack into the B sack inside the bag. You then keep going back and forth for a few seconds to mix it and the foam catalyst bags will begin to expand into the rest of the bag. You have to work quickly to spread out the foam inside the bag. It feels quite warm. You then quickly place the bag in or around the item you are packing and hold it there. It is hard in less than a minute.We found then very effective.The company would sell alot more of these if you could buy them in 10 packs rather than an entire case.See https://www.youtube.com/watch?v=4K8Q1uLKI7U for a demo on how they work and how much they will expand.You typically want to buy it bigger than the container dimensionsThe video shows a bag pre-warmer but we did not find this necessary as long as your office is at room temperature.

Learning curve challenged but after getting the hang of these I have to say I am THRILLED with how well they work. You need to have everything to be packed mentally packed in your mind so when package expands you work quickly to get in place...Everything I shipped out arrived at destinations safely & in one piece..

Expensive - yes... but for securely packing valuables and electronics for a recent move across the country.... a relative small cost to pay. Note - work fast as this stuff sets very quickly.

10 out of the first 36 either had holes in them or would not mix. Save your money, buy them from Uline. There are obviously seconds someone got cheap.

I use the packs to secure a toy box to send to my Daughter. They worked great! I used 16 of them for complete stability in the card board box I made out of a water heater box. They do initially get hot but are cool enough to touch in a few seconds. They will fill the outside wrap to about 1” thick when laid flat.

Works good. The bags don’t fill up as much as I anticipated so there’s a lot of excess bag and uncovered/unprotected space. But still got the jobs done. I just had to use twice as many to full cover my items of that bag size.