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Deck Blisters - Source?
I have a 1968 vintage boat I bought last year. It had zero blisters. It was in serious need of a paint job and this summer I removed all the deck hardware and repainted it. I rebedded the hardware, overboring holes, filling with epoxy and then redrill and bedding with 5300. I now see a few mild deck blisters popping up on the foredeck aft of the bow line cleats and bow pulpit stanchions that I removed/rebedded.
I think the moisture problem is from one of two sources:
1) when I removed the hardware, prior to rebedding and painting, I did not immediately fill the holes, but covered them with tape. I got hit with a couple serious thunderstorms in the interim -- water definitely seeped in under the tape through the holes.
2) perhaps I did not bed the new hardware as well as I thought.
Question: HOw to remedy?
If the problem is #1 as described above, and the moisture is a legacy of a couple downpours that happened months ago and now that the hardware is in place, it is trapped in the deck core and forcing itself out, the problem is probably worse. Can I vent the deck core from the underside? But would it have taken 4 months for this to happend?
If the problme is #2, I can remove and rebed -- althought that will be a PITA (pain in the @ss).
Any suggestions will be appreciated.