First infusion result. fiberglass + plywood + fiberglass


First infusion result. fiberglass + plywood + fiberglass
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oceax
oceax
oceax
posted 10 Years Ago HOT
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I tried to resin infuse a panel using the following setup  Polypropylene sheet / Fiberglass 220g / Plywood 4mm / Fiberglass 220g / Peel ply / Mesh / Bag
I wanted a "glass" surface finish on one side and peel ply finish on the other side for bonding.
Resin was polystyrene and the top layer wet out perfectly first.
But the bottom layer did not wet out that much.
I had a very small leak that i could not detect with my hearing so i had the vacuum pump running. It turned off after a few hours (overheat protection?). I put a fan against the pump and turned it on again but the panel was already ruined (non wet area in middle of top panel).

Questions
Can i conclude from the non wet area in the middle of the panel that the leak in the bag was at that spot? or does the air that gets in, even if it is from the sides, collect in the middle?
If i had foam instead of plywood would, would the foam let resin through to the bottom side?
I guess i could have added peel ply and mesh on bottom side, but that would not give me the surface finish i want.
Is there some replacement for peel ply that can be used with mesh when you want a good looking surface finish.



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First infusion result. fiberglass + plywood + fiberglass
oceax - 10 Years Ago
     Hi, when you infuse with a solid core (doesn't matter what sort of solid core, wood, foam etc...)...
ChrisR - 10 Years Ago
             I agree with ChrisR, Second thing to keep in mind is moist trapped in the wood, boiling under...
matthieutje65 - 10 Years Ago
             Yes, it was polyester, generic resin. I bought styrene for thinning the resin but did not use it in...
oceax - 10 Years Ago

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