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PostPosted: Sat Jan 12, 2013 10:24 pm 
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Joined: Sat Mar 20, 2004 4:33 am
Posts: 69
Location: South Australia
At the risk of offending I need a bit more advice please as I need the repairs done this week:

1 Should I use thick epoxy (if it exists) or polyester resin with thickener?

2. Should I use 1 inch fibreglass tape to brush the epoxy or resin on to - that means the epoxy or resin can't be too thick otherwise it may not soak the tape enough.

3. A friend is insisting that adding the tape is better than just thick epoxy and then light/runny epoxy injected into the tight spaces/cracks at each end.

4. He also suggests grinding out ALL the old epoxy even though it's pretty solid apart from a little flaky stuff - taking both sides of the seam back to their original base before inserting the tape between.

I've searched this site (Hull/Deck Seam Repair) and found a few results and there's been no mention of fibreglass tape - just thickened epoxy and clamps and I wonder if that's the best method.

It's a clean separation from the sidestay to the bow with no damage to the fibreglass.

I'll add pics via a url then try to upload directly. Any suggestions greatly appreciated. Thanks, J http://www.johnahern.net/Hobie2.html


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PostPosted: Sun Jan 13, 2013 9:25 am 
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Joined: Mon Jul 14, 2003 7:11 pm
Posts: 4575
Location: Detroit, MI
1. Use epoxy for its superior adhesive abilities and strength. Thicken to a peanut butter consistency with colloidal silica (WEST 406).

2. There is no need to use fiberglass tape.

3. You should try to clean out any broken up hull/deck adhesive, but it's not necessary to remove it all.

Force the epoxy into the crack with a putty knife or plastic scraper along its entire length. Clamp together and clean off the excess. Give it at least a few days to cure hard (epoxy takes a while to develop its full strength).


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