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Old 21 June 2013, 13:03   #11
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Transom Refinish Photos

Here are some photos of the transom and thrust board. They are in good shape. No rot. Just need to patch some holes, particularly around the motor mount on the transoms top edge. I was going to use West System silica filler for this. Do I need to remove all prior paint or is it good as is? I would like to cover the Epoxy with a matte UV resistant paint. I'm fine with spray paint if it achieves this purpose and is UV restart enough. I'm trying to bring it back to original condition and these all came with matte black paint. There does not appear to exist matte varnish so it'll have to be paint.


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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, 13:12   #12
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Use the 404 or 406 density silica IMHO.

Spray paint would be UV resistant enough although it might be a bit thin and scratch easier. All the marine polyurathane's will be glossy so if you are specifically going for matte then spray paint it is.

Transom looks pretty good as is. You are lucky you didn't have to remove and reglue it!
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Old 21 June 2013, 13:16   #13
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I have used West Systems G-flex with some cut carbon fibers to fill small gouges on my transom. Awlgrip is a great durable paint that can be hit with a med scotch bright pad to flatten the gloss.

Cheers, Squid
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Old 21 June 2013, 20:50   #14
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I thought originally it was black stain with Spar Urethane over it. Not paint
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Old 22 June 2013, 00:37   #15
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Whatever it was it was matte black. The ones I have seen have only had a matte black transom. Is Spar urethane matte black?

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I thought originally it was black stain with Spar Urethane over it. Not paint
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Old 22 June 2013, 02:11   #16
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spar urethane is satin not too glossy. But actually awlgrip is good stuff too awlgrip is good stuff too My thrust board is actually fairly glossy. Wouldn't be surprised that new transom would be same.
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Old 24 July 2013, 00:08   #17
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Here's the finished result. After sanding down the transom I patched some needed areas with West Systems 101 Epoxy (and Silica Filler) then I painted the transom and new sacrificial plate in Black Epoxy. After sanding and painting twice I spray painted it in matte black paint and proceeded to reassemble all the components. Its not perfect but looks new if you squint!
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Old 24 July 2013, 03:12   #18
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looks awesome
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Old 24 July 2013, 21:42   #19
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It looks great mate.

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Old 25 July 2013, 14:15   #20
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Some pictures of the transom before the rebuild.
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