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 General Sailing Forum
 Removing old lettering adhesive		  New Topic  Topic Locked
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OJ
Master Marine Consultant

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USA
4382 Posts
Initially Posted - 04/07/2010 :  07:23:26  Show Profile
I tried a search on this topic and couldn't pin down what I was looking for.

What's an effective product or technique for removing old lettering adhesive from a fiberglass hull?

Is it a given that really old adhesive will not come off?
Edited by - OJ on 04/07/2010 07:42:55

redeye
Master Marine Consultant

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3476 Posts
Response Posted - 04/07/2010 :  07:34:55  Show Profile
http://www.goof-off.com/
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Dave5041
Former Mainsheet Editor

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USA
3758 Posts
Response Posted - 04/07/2010 :  07:56:40  Show Profile
Heat gun and a scraper. judicious use of the heat gun as it can burn the gel and follow it with redeye's recommendation and a thorough wash with your preferred boat soap. If the letters have been on for a long time, there will be a ghost of the letters vaguely visible and and the gelcoat may appear slightly raised, but sunlight will eliminate that over the season. Let the ghost fade before applying new letters if possible.
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redviking
Master Marine Consultant

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USA
1771 Posts
Response Posted - 04/07/2010 :  08:13:29  Show Profile
heat gun - no chemicals except for acetone or something like that is my vote. The acetone just cleans up the residue... Never mind the letter fade... It will pass after the new letters are applied. Just did it to a dark blue hull.

sten
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farrison
Navigator

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USA
166 Posts
Response Posted - 04/07/2010 :  09:05:21  Show Profile
I have always had good luck with mineral oil (baby oil) for removing both hardened and soft adhesives of all kinds. Wipe it on and give it a little time to work. Much milder than solvents and won't hurt the surface.

Paul
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Dave5041
Former Mainsheet Editor

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USA
3758 Posts
Response Posted - 04/07/2010 :  14:00:54  Show Profile
Nearly all normal adhesives, as opposed to things like epoxy, polyurethanes, superglue, are fat soluble, so any oil will work. Things like Goof-off just contain some lighter solvents and detergents to speed up the process.
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jerlim
Master Marine Consultant

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USA
1484 Posts
Response Posted - 04/07/2010 :  17:36:22  Show Profile
WD-40 and a plastic putty knife also work well to remove residue...
Edited by - jerlim on 04/07/2010 17:37:08
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delliottg
Former Mainsheet C250 Tech Editor

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USA
4479 Posts
Response Posted - 04/08/2010 :  09:20:31  Show Profile  Visit delliottg's Homepage
On SL I used a heat gun, plastic scraper, and patience. The latest vinyl lettering came off pretty easily, only a bit of scraping here and there, and then a wipe down with acetone to remove the last vestiges of adhesive, same thing with the Oregon registration stuff. The ghost lettering from the PPO's name though is still burned into the hull from years in the AZ sun. You have to know it's there now to see it, but if the light's right, you can. I've never really tried hard to polish it out with wax, so it may be possible to make it go away, but it rarely bothers me, so there it sits.
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superbob
Navigator

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USA
200 Posts
Response Posted - 04/09/2010 :  07:51:42  Show Profile  Visit superbob's Homepage
I just removed the '09 stickers with Goo Gone which worked fairly well but not perfectly. Internet research overwhelming supported the use of citrus based adhesive remover. Be careful of whatever you use in making certain none of whatever is applied drips down to the vinyl "stripes" which surround your boat.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.