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 How to remove very decal adhesive?		  New Topic  Topic Locked
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cwstrang
1st Mate

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USA
78 Posts
Initially Posted - 04/08/2014 :  06:54:04  Show Profile
Guys: Greetings from St Helens. I removed some very old decals but there is this this ghost shadow that remains. Is there something out there that will remove it completely. Thanks, Craig
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Stinkpotter
Master Marine Consultant

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Djibouti
9013 Posts
Response Posted - 04/08/2014 :  08:02:08  Show Profile
If by "shadow" you mean the gelcoat under the decals that hasn't faded or weathered, I suspect the only way is compounding the rest of the hull.
Edited by - Stinkpotter on 04/08/2014 08:03:03
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britinusa
Web Editor

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USA
5404 Posts
Response Posted - 04/08/2014 :  08:10:00  Show Profile  Visit britinusa's Homepage
FYI, I replaced the Vinyl Lettering on the side of JD around 18months ago, still have the ghost!

Just ordered the Makita Buffer in prep for a major glow job!

Paul
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Steve Milby
Past Commodore

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USA
5851 Posts
Response Posted - 04/08/2014 :  08:33:49  Show Profile
I remove old adhesive with almost any solvent, such as mineral spirits or paint thinner.

I renamed my boat and the old name left a ghost in the gelcoat. The ghost is usually because, where the gelcoat is covered by a decal, the gelcoat doesn't chalk, but the area around it does chalk. I ignored it, and after the newly exoposed gelcoat chalked for a year, and after the next time I waxed it, the ghost was no longer visible.
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Chief RA
Chief Technical Advisor

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USA
191 Posts
Response Posted - 04/15/2014 :  06:49:54  Show Profile
I have the same problem after removing stripes and old name adhesive decals. I am considering 600 grit sandpaper on the gloss epoxy surface. (Just enough rubbing to kill the super shine) What do you guys think? Just got back home after 3 months in Arizona and getting my boat ready!
Chief
Edited by - Chief RA on 04/15/2014 06:52:53
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Chief RA
Chief Technical Advisor

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USA
191 Posts
Response Posted - 04/15/2014 :  11:53:23  Show Profile
I found some high quality 600 grit wet sand paper and it does work! Just be careful if you have a shine surface on your boat as it will degloss the glass. In my case it made it all about match as close as I can tell. Back to work! Chief
Edited by - Chief RA on 04/15/2014 12:25:44
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britinusa
Web Editor

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USA
5404 Posts
Response Posted - 04/15/2014 :  12:43:31  Show Profile  Visit britinusa's Homepage
I used 1200 grit wet and dry (very wet) to try removing the ghosts, it dulled the shine, but I wasn't brave enough to keep going to see what it would take to remove them.

Still waiting for nice weather to polish the hull (deck will come later)

Paul
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TakeFive
Master Marine Consultant

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2269 Posts
Response Posted - 04/15/2014 :  16:21:17  Show Profile
Any deglossing that you do with 600 grit can be undone by standing with 1000 and 2000, then compounding and polishing.

Alternatively, just bring the rest of the fiberglass up to a uniform gloss by polishing like Paul is planning to do.
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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.