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Go Back   SailNet Community > On Board > Gear & Maintenance > Transom Gelcoat Cracking Repair
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Thread: Transom Gelcoat Cracking Repair Reply to Thread
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Topic Review (Newest First)
10-15-2013 03:28 AM
mitiempo
Re: Transom Gelcoat Cracking Repair

Gelcoat is not the easiest material to apply over epoxy. Many think it is impossible to do successfully. Paint could be a better option.
10-15-2013 02:08 AM
desert rat
Re: Transom Gelcoat Cracking Repair

gelcoat, epoxy, 2 part undercoat; epoxy. Grind through the cracks and re apply, gelcoat.
10-14-2013 11:54 PM
SloopJonB
Re: Transom Gelcoat Cracking Repair

Quote:
Originally Posted by Trigger View Post
I was thinking of using bon do fiberglass fiber to repair the bow of dads boat any suggestion

First, I suggest you think again. Lets see some pics of the damage. Bondo is only a weak filler, not suitable for repairs (or any other purpose on a boat IMHO).
10-14-2013 10:51 PM
Trigger
Re: Transom Gelcoat Cracking Repair

I was thinking of using bon do fiberglass fiber to repair the bow of dads boat any suggestion
08-29-2013 12:17 AM
davidpm
Re: Transom Gelcoat Cracking Repair

I have heard that a preval sprayer works well.

Repairing hull damage the Whaler Way
08-27-2013 01:31 AM
67rway
Re: Transom Gelcoat Cracking Repair

Thanks to all for the great info/insights. The info from Rugosa appears spot-on, as there is clearly a seam straight through the middle of this area, and no visible damage from the interior of the hull.

I've sanded through all the visible crazing, and have a couple of thin layers of Evercoat that I'm feathering out now.

I too sprayed gelcoat a few times back in the day, and am thinking I'll probably do so again on this transom. Though I'll have to admit the ease of spraying paint is very tempting...

Again, thanks!
08-26-2013 02:04 PM
rugosa
Re: Transom Gelcoat Cracking Repair

Quote:
Originally Posted by SloopJonB View Post
There are gelcoats available that air dry and don't orange peel like in days of old.
Many years since I sprayed gelcoat. Remember the wet sanding took plenty of time, and mold finishing with 1800 grit with no fingerprints left. Thanks for the update Sloop.
08-26-2013 01:32 PM
SloopJonB
Re: Transom Gelcoat Cracking Repair

There are gelcoats available that air dry and don't orange peel like in days of old. I had some large areas touched up by a pro on my last boat and they didn't require any more finishing than what was required to polish up the rest of the hull.

Some wet blending with 600 & 800 then liquid polishes with a wheel.

I can't give any specific info about them though - you'll have to talk to some good suppliers or applicators.
08-26-2013 10:29 AM
rugosa
Re: Transom Gelcoat Cracking Repair

Definitely common when mold is gelled in sections then bolted together for laminating. Looks like deteriorated cosmetic repair from factory. What did surveyor say? Since it is a small transom you can re gelcoat. Gelcoat is labor intensive but should last longer and be more resistent to damage than paint. Seams can be blended on edge of transom.
08-26-2013 09:36 AM
chucklesR
Re: Transom Gelcoat Cracking Repair

Bondo is essentially polyester filler, and yes - it was / is used to fair boats all the time.

If you feel a need grind down to the fiberglass and make sure it is solid then just recoat (west or some other system of products) and re-fair then paint or gelcoat. If you gel coat be prepared for some pretty serious sanding, buffing and polishing to get back to fair and shiny.
If the cracks extend into the fiberglass use the links DavidPM provided above to learn up, then come back here if you have questions or concerns.
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