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Go Back   SailNet Community > On Board > Gear & Maintenance > Help with topside paint repair
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Thread: Help with topside paint repair Reply to Thread
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Topic Review (Newest First)
02-03-2013 12:27 PM
jimgo
Re: Help with topside paint repair

Sounds like a good plan!

Good luck with the repair.
02-03-2013 11:36 AM
malyea
Re: Help with topside paint repair

Quote:
Originally Posted by jimgo View Post
How did this turn out?
Still a work in "progress"....

I've sanded the old grey primer down to the old under lying gel coat and from 50' (without glasses) you can hardly see the scrape. I talked with the local IMRON dealer and he recommended DuPont NASON instead of DuPont IMRON.

Waiting on warmer weather before proceeding and still not certain which paint I'll use...99% sure the previous paint is IMRON and he says the two are compatible but NASON (with activator) is much less expensive plus he says he can hardly get the IMRON that was used several years ago...

I'm still challenged by the fact that I can't perfectly "feather sand" the old paint scrape edges flush so unless I "build up the scrape" with paint/primer/filler/epoxy - I'll be left with an "edge" around the newly painted scrape of about 1/80 inch deep...

...and then of course there's the issue of color matching....

.....that's why the better course seemed to go sail the Outer Banks and wait for spring - maybe even this spring ;-)
02-03-2013 10:19 AM
tommays
Re: Help with topside paint repair

That is a really difficult repair that would Not even be possible even in and autobody shop IF the car did not have doors and other seems to break up the job

Even if it was gelcoat the person would have to be REALLY GOOD
02-02-2013 10:34 PM
jimgo
Re: Help with topside paint repair

How did this turn out?
11-06-2012 10:23 AM
malyea
Re: Help with topside paint repair

Thanks for the tip on "lack of fill ability" of the two part Imron. Since I'll be feather sanding the scraped paint edges smooth and there's no gouges in the underlying gelcoat/fiberglass...I wonder if I'll get a little bit of "buildup/fill" from the primer.

As the photo shows the old paint is about 1/64 - 1/32 thick...
11-03-2012 03:51 PM
SloopJonB
Re: Help with topside paint repair

Quote:
Originally Posted by malyea View Post
- roll and tip with white imron, probably two coats to help 'fill' the scrape
The two part paints I've seen used had no "fill" ability like regular paints - they showed every defect in the substrate.
11-03-2012 01:53 PM
TQA
Re: Help with topside paint repair

Quote:
Originally Posted by sww914 View Post
The OP has stated that the boat is already painted with Imron. I am talking about repairing the damaged paint that is ALREADY ON THE BOAT.
It is exactly this that can be a problem. Overpainting with something not compatible.

Check using the method I described to see if you get a reaction. In the worst case it will look like you painted it with paint stripper.

I was in the vehicle refinishing business through the 60s - 90s and dealt with two packs / isocyanates / acrylics etc.
11-02-2012 02:33 PM
sww914
Re: Help with topside paint repair

Quote:
Originally Posted by kd3pc View Post
at least 60 days according to their website....even longer if you have actually used this paint and know it's quirks and foibles. Never for some of us..and only mequiars or collinite if you do.

OP.....it is your boat, go for it.

hope it works, please let us know how you do....pics, too

all the best
Imron has been illegal in California for a long time. I can't remember everything about all of the 40 or 50 paints that I've sprayed over the last 25 years. Sorry.
11-02-2012 02:28 PM
sww914
Re: Help with topside paint repair

Quote:
Originally Posted by TQA View Post
WARNING

Not all yacht paints used to refinish GRP hulls can be overpainted with auto paint. Yes many can but not all. ASK ME HOW I KNOW THIS.

Get some of the paint you plan to use, paint a little on in an unobtrusive area and cover it with clear film to slow the solvent evaporation. This will show up incompatabilities.
The OP has stated that the boat is already painted with Imron. I am talking about repairing the damaged paint that is ALREADY ON THE BOAT.
11-02-2012 12:59 PM
kd3pc
Re: Help with topside paint repair

Quote:
Originally Posted by sww914 View Post
BTW, don't wax imron for a couple of weeks after the new paint.
at least 60 days according to their website....even longer if you have actually used this paint and know it's quirks and foibles. Never for some of us..and only mequiars or collinite if you do.

OP.....it is your boat, go for it.

hope it works, please let us know how you do....pics, too

all the best
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