Forums General Discussion Bow Section flexing, AKA "Oil Canning" Re: Bow Section flexing, AKA “Oil Canning”

#69694
RichCarter
Participant

The guy who did the glass work for me originally planned to lay in vertical reinforcing strips. His plan was to cut PVC pipe in half sections and glass them over the inside of the hull. He changed his mind and instead laid-in 3/8″ of glass over what was there. The layers were done with 24″ wide cloth. Each section overlapped, so there is 3/4″ of glass added where the sections overlap. I think the reason he changed his mind was that it would have been difficult to get the PVC pipe to lay flat against the hull while the epoxy cured.

He ground down the inside of the hull using an angle grinder and coarse sandpaper. This kicked up a huge cloud of fibergass dust that got into everything even though the forward door was closed while he worked.. He then laid in the new glass over what was left. It took him about 16 hours to do the work. The bill came to about $2500. This was 12 years ago.

I thought that what Peter had done was for cosmetic reasons only. The strips were glued in to allow fastening the ash battens in place. There’s no reason that they couldn’t be structural of they were glassed over before the battens were attached. Wood ribs could be easier to attach than PVC pipe because they could be cut to fit.


Rich Carter
BlackSheep #47


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