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Old 16 May 2013, 21:48   #1
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Product Recommendations for Transom Repair

The transom on my Zodiac FC-470 needs to be refinished and repainted. I may also need to replace a marine grade plywood piece on it. For those of you in the US, what marine paint (black) would you recommend and where should I source the marine grade plywood? Also, Is there any other type of product I should be using in order to seal the transom properly? I am completely new to all things boats.
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Old 17 May 2013, 04:11   #2
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Not in the US, so can't advise on paint brands but if you've got to strip the transom bare it'd be worth giving it a coat of an epoxy sealer.
You'll need to follow that with a polyurethane paint or varnish to prevent UV damage..
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Old 17 May 2013, 06:41   #3
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I have low hr used F470 transoms in stock.
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Old 17 May 2013, 09:11   #4
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Thanks for the offer! It doesn't need to be replaced just refinished but I have a list of other parts that I am looking for. Do you have other used parts in stock? Paddles perhaps?

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I have low hr used F470 transoms in stock.
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Old 17 May 2013, 12:42   #5
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West Sytems have a full line of, well, stuff, pertaining to what you're looking for. West Marine website (different group, despite the name) should have a bunch of info on products and applications.

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Old 20 June 2013, 15:02   #6
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I bought West Systems epoxy but from the documentation it does not appear to have UV protection. What is recommended as a UV barrier coat on top of the epoxy? Any specific brands recommended for marine applications?
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Old 20 June 2013, 15:54   #7
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A 2 part polyurethane paint will do a really nice job, and should be UV resistant.

If you can add pigment to the West System, then a clear 2 part polyurethane varnish would do well.
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Old 20 June 2013, 17:56   #8
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I have successfully used the water viscosity epoxy from west marine as a sealer (not on a transom but a teak deck). Even 1 part polyurathane paint would be fine as a top coat. Much simpler to apply than 2 part anyway.

You didn't post any pics but chances are good the transom is at least a little delaminated around the edges. That can be fixed with clamps at the same time you reseal it. Just inject some epoxy into the core with a plastic syringe. West marine and other yacht or fishing supply places even sells plastic syringes for this purpose.

ps there's no such thing as "marine grade" plywood here in the States (I have no idea about the UK). There are interior and exterior grades, but all exterior grades use waterproof glues and none of them are specifically rated for marine use. So if you are trying to replace the thin "pad" of plywood on the back of the transom because the clamps have chewed up the old one... You can grind off the old pad and reglue on a peice of exterior ply from Home Depot etc. Then seal + paint the whole thing into one solid wood cored black transom.
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Old 21 June 2013, 10:12   #9
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ps there's no such thing as "marine grade" plywood here in the States (I have no idea about the UK). There are interior and exterior grades, but all exterior grades use waterproof glues and none of them are specifically rated for marine use.
Wikipedia article on plywood seems to say different (as do the few resellers online.)

Apparently the biggest differences are the facings (rot resistant) and the use of generally clear sheets to make up the thickness (no voids to trap and hold water.)

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Old 21 June 2013, 11:27   #10
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Wikipedia article on plywood seems to say different (as do the few resellers online.)

Apparently the biggest differences are the facings (rot resistant) and the use of generally clear sheets to make up the thickness (no voids to trap and hold water.)

jky
We have lots of wooden boat builders around here, and while you can try to specify void free the reality is (I'm told) that they all have voids to some degree. None of our plywood manufactures are using clear fir (or cedar, or hemlock) for plywood, especially interior laminations.
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