John61CT wrote:I'm curious, what is the practical function of the fabric?
I come to PMF via the foamie idea, so much so I thought the foam part was essential to the definition of PMF, that using sheet plywood meant it is no longer PMF.
With foamie, the fabric is there to give tensile strength, which foam on its own has very little.
But with ply already being strong that way, is the purpose of the fabric still functional?
Or just cosmetic?
John61CT wrote:Yes. My question is a general one, regardless of any particular example.
BulletProof wrote:Still trying to figure out what the fabric is doing!
Maybe I should just build the box and paint it! I was going to PL all the wood joints anyway.
I get that the PMF was an old technique for building kayaks and airplanes but that fabric was stretched over frames.
With a solid wood box, why add the fabric? Like a former poster mentioned - it makes sense with a foamie, but why on a solid wood box?
Glue it together, make sure all the joints are well sealed, prime it and paint it.
Glue it together, make sure all the joints are well sealed, prime it and paint it.
BulletProof wrote:Don't get many plywood houses around here.... but I'll take your word for it!
Found this.... https://liquidrubber.ca
Will start new thread...
BP
tony.latham wrote:BulletProof wrote:Don't get many plywood houses around here.... but I'll take your word for it!
Found this.... https://liquidrubber.ca
Will start new thread...
BP
Don't forget what started this thread. Somebody gave him bad advice and he coated unsealed plywood with a urethane bedliner.
That liquid rubber would probably work if you sealed the plywood first. Now, what it would look like is another issue.
T
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