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  1. #1

    SprayFoam and Surfboards??? shapers???

    So... after Sandy wrecked everyone's place in my neighborhood we were flooded with contractors and sales reps for all sorts of home rebuilding stuff and one thing some sales rep showed up with stuck in my head..... its was this guy coming around with sprayfoam insulation. when it dried it was hard as a could be and can be cut and sanded, I know because I tried this on the block square sample he left....

    (Before you read... keep in mind I have no clue on building boards...)

    I eventually got around to thinking that some backyard/garage macguyvers could use this to recreate a surfboard, up to the point of glassing...

    here's what I was thinking.... take your board you want to recreate and (for arguments sake) paper mache the board... 2 halves (left side/right side), nose to tail. when it dries you have the mold of your surfboard. then fill the 2 molds with spray foam. when it dries take it out of the mold and glue the two halves together. I guess one could expect to do some fine tune sanding.... then glass it????


  2. #2
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    I think in theory that would work if you were using epoxy resin. The big issue would be foam density since there is no way a paper machete mold could hold enough pressure to force the foam to become more dense. Ill bet if you tried, it would look like a surfboard feel like a surfboard but would fall apart after a single session or at least be so dinged up the glass would start to crack, it would be really light I bet.

  3. #3
    Yeah I guess the paper machete mold would be too weak to squish enough foam into to make it dense... but maybe a fun idea to try as a home project....

  4. #4
    if you do try it, realize that the sprayfoam expands a considerable amount before it dries...but like Zippy said the problem lies in foam density, the sprayfoam that they are using for home insulation is nowhere near as dense as the foam in your surfboard. You can push your finger right through it.

  5. #5
    Hey Koki, thanks for the note... the thing is that this stuff he left me... I punch it with a decent amount of force and I barely leave knuckle impression in it.... as a matter of note... my knuckles actually feel pain.. the stuff is hard. I cant break or squish it. I dont know if its proprietary to the this company or not but if I do go about giving it a try I will try to get the stuff they use.

  6. #6
    Quote Originally Posted by MFitz73 View Post
    Hey Koki, thanks for the note... the thing is that this stuff he left me... I punch it with a decent amount of force and I barely leave knuckle impression in it.... as a matter of note... my knuckles actually feel pain.. the stuff is hard. I cant break or squish it. I dont know if its proprietary to the this company or not but if I do go about giving it a try I will try to get the stuff they use.
    must be different from the stuff I'm used to seeing, if it's that solid, maybe it will work.

  7. #7
    Quote Originally Posted by glassyandsunny View Post
    what if you dont glass it and just sand it smooth and surf it?
    I don't know... it would probably get a lot of foot pressure dings on the surface... I would think you'd want to glass it. It would probably be faster on the wave if glassed....

  8. #8
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    Yeah wow, is there a name brand for it? I think the stuff I have used was called great stuff or something like that and it's pretty soft. Is it polyurethane?

  9. #9
    The guys biz card is www.airsealis.com. I don't know the uniqueness of the foam.

  10. #10
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    I might just try that. But maybe with a skimboard or something. And maybe use craft plaster instead of paper mache.