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Old 04-13-2005
CJV CJV is offline
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Hull Core Repairs, Post Blister Repairs

Hello,
My Tartan Ten (hull #282, 1981) had a blister problem repaired before I bought her in May of 2004. She also had a core delam problem which I am now repairing. After removing the inner skin and affected core, some of the putty-filled blister repair holes on the now-exposed inside surface of the outer skin are visible. They show up as perfect white circles about 1/8" in diameter. In two cases they are missing altogether so you can see clear thru the hull.
I''m wondering what''s the best way to proceed when re-coring:
1. Glass over all affected areas with epoxy & glass fabric, essentially thickening the skin but ensuring no further mechanical separation of the putty.
2. Ignore it and lay new core above those areas.
3. Grind and fair from the outside the areas with blister repairs.
4. Grind from the inside and fill/fair with putty, then glass another surface in before applying core material.

As far as I can see, #1 would make most sense. Am I over-engineering this fix?
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