Expanding Hardening Foam
- Thread starter Plymouth Sailor
- Start date
What is the application? What is your compression strength specification? Do you want to be buy it in bulk or small spray can? You will be looking for closed cell foam. Do an internet search on "high compression strength expanding foam" to find one that suits your application.
Suggest reading this Spray Foam Structural Strength | Closed Cell Spray Foam | Accufoam®
Suggest reading this Spray Foam Structural Strength | Closed Cell Spray Foam | Accufoam®
I'm not a fan of deck injection, not at all, but it is reasonably rigid foam.
inject-a-deck
inject-a-deck
Thinwater, can you explain why you're not a fan of deck injection? Not to hijacka thread, but I have about a 2 foot square section of my C22 around the forward hatch that is soft, and something like this seems to be a much easier repair process when compared to the "right" way; particularly if you're like me, and not terribly handy. I was planning on attempting the deck repair in the traditional method this summer, but this product has piqued my interest.
The trick is in the "expanding" part. It's easier than you think to split your deck apart.
We had expanded foam under the sole of my father's center-console runabout. It was hygroscopic. Be sure yours isn't. One wouldn't think that foam would absorb water, but each cubic foot we removed weighed about 30 pounds, and was dripping wet like a saturated sponge.
The most important step in most adhesive applications is surface prep. How well do you think foam is going to bond to rotten balsa with the consistency of peat moss? Smear wet peat moss on to your next project before gluing.
Not trying to be sarcastic. Just visualize it. Skins rely on the core bonding to both surfaces to make an I-beam. You'll get no bond.
You'll be handier after the project! If you can remove the liner, you can also work from the inside, which avoids finish work. And you will know it is right, not half-assed.
core replacement from the inside