Product review (4 stars): A pricey item, but works with manipulation
Si the gasket came cooled up, which I expected. I opened it up and left it out for a few days. It had a twist in it that I couldn't correct. I gently used a heat gun to relax the plastic. It worked but only until it cooled again. Installing was fairly easy, with exception of the part the twisted. Once I stalled, there were gaps where the gasket was compressed. I again used the heat gun to GENTLY relax the plastic. It took some work and manipulation but I finally got it was good as it was going to get. After a few days, it relaxed into place and the seal is complete. The product works just as it's supposed to, but I gave it 4 stars for having to wrestle this thing into place and work on it more than I anticipated.
In total I let it sit out for 2 days, it took about 1.5 hours installing and massaging it into place with the heat gun. It took an additional day or so for it to finally relax and seal 100%.
Pros: it does work and seals well.
Cons: this gasket was almost half the cost of replacing the entire chest. It comes coiled up in the package and due to it being like that for so long it has "memory" and wants to coil back up. It takes some patience installing and a second set of hands would be nice, but not absolutely necessary. Requires a heat gun to relax it into place. Plan ahead as the freezer is not immediately going to seal and you will need a place to store your food for 1 day.