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Botched Gel Coat Repair

Old 06-13-2019, 03:37 PM
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Default Botched Gel Coat Repair

So I have some spider cracking along my gunwales that came with the boat when I bought it. So today after watching some youtube videos I was like oh I can do that. Which I did, I used a dremel to open them up and fill it. It worked pretty well wet sanded it and smoothed it out. The problem is the color match, the boat is an off white and I though i had matched it pretty well. I did white with just the slightest little spec of brown when I smeared it on the boat it looked really close. Now that its done it looks way off.

My question is what are peoples thoughts on opening them back up and redoing it, or should I just leave it alone and live with it?
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Old 06-13-2019, 04:17 PM
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Either way. A pro working on your boat would redo it.
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Old 06-13-2019, 04:34 PM
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If you can't live with the color variation it's time to turn it over to a professional. They should be able to get better results.
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Old 06-13-2019, 04:39 PM
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probably needs a bit of black and yellow too. If you get it really close, just coat over it and sand.
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Old 06-13-2019, 05:14 PM
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If it's off white like a Grady,You may have to add some Purple. My Guy had to on mine.
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Old 06-13-2019, 05:14 PM
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I had a gouge on my sky blue hull. Blue and white, right? Wrong. I had air bubbles anyway but sanded it back down and added a drop of black. Color looked perfect but cured just off. Almost impossible to match as a DIY-er. Lucky for me, I just put the registration sticker over it.





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Old 06-13-2019, 05:19 PM
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Paint! easy peasy. If you can get the boat over to a auto paint supply store. They have guns and can replicate the color of the "original" gel. By original I mean you will have to compound an area back to the original color. From that you can get a quart of color that will match it spot on.
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Old 06-13-2019, 05:59 PM
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To dig a little deeper, spider cracks appear for a reason, if you didnít investigate and fixed what caused them the first time they typically return rather soon.

To fix the color issue, donít open it back up, just spray over it until you get the color right, or you give up out of frustration.

If the the gel coat is faded it will be noticeable until you buff out the rest of the hull just like you did this area.
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Old 06-13-2019, 06:10 PM
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Thanks for the advice guys, I might try to do the paint thing. The cracks I assume are from rubbing against pylons on the chesapeake bay tunnel. The fiber glass is still solid underneath I believe its just from flexing. Here is a picture of my botched job. It seems to match pretty good until it cured.
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Old 06-13-2019, 07:04 PM
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Why fix spider cracks?
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Old 06-13-2019, 07:19 PM
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good luck getting gel coat to match exactly. even if you do get it to match, it will likely fade differently under uv and look different later on.
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Old 06-14-2019, 06:28 AM
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Originally Posted by Miss Trial View Post
Why fix spider cracks?
to prevent water and salt working itís way down and into the fiberglass. That was the worst area right there it actually had a couple small chunks about to come out. After this experience Iím going to leave the rest alone though.
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Old 06-14-2019, 06:42 AM
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Default Capt Tolley's

This is what I've used in the past:
Captain Tolleys--2-oz-crack-cure-sealant
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Old 06-14-2019, 06:46 AM
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Originally Posted by REVROBERT View Post
This is what I've used in the past:
Captain Tolleys--2-oz-crack-cure-sealant
Thank you, Iíll have to try it out.
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Old 06-14-2019, 08:00 AM
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Any recommendations for mobile gelcoat repair in Miami?
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Old 06-14-2019, 08:55 AM
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Originally Posted by Miss Trial View Post
Why fix spider cracks?
On the superstructure, I would agree - only have a couple on my boat and I just make sure they're well sealed - I've fixed a couple before (and they've stayed fixed) but I wouldn't bother with the hassle again.
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Old 06-14-2019, 10:02 AM
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I have a similar issue but on a yellow boat, any recommendation on gelcoat dye products?
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Old 06-14-2019, 10:12 AM
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Next time maybe mix and let some cure on a piece of wax paper, then repeat until you think you have good match. Then do the job for real. As for fix or leave it as is. Well that is just a personal preference. I would probably leave it for 6-12 months then see if the cracks have re-appeared and if it is still bothering me.

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Old 06-14-2019, 12:00 PM
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Go fishing. It may not be perfect but if you spend your time trying to keep a boat looking new…..
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