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Old 12-10-2004, 02:52 AM
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Default painting a fiberglass boat

hi all, well im looking into fully repainting my boat, im just interested in anyone that has done this before, and what they think is the best paint for the job?? the boat im wanting to paint is a 23ft traler boat, so any info would be much appreciated... thanks again.. mat
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Old 12-10-2004, 04:10 AM
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Default RE: painting a fiberglass boat

Although I've got my opinions on the subject, I'm no expert - have you tried doing a search on Paint? There should be a wealth of info there.
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Old 12-10-2004, 04:51 AM
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Default RE: painting a fiberglass boat

What do you want it to look like when you are finished? Paint jobs are rated by "feet' as in, it looks good from 2 feet or 10 feet or 30 feet.....or 1/2 a mile......thorough sanding and prep with awlgrip to roll and tip with enamel......give us budget, skills, desire....we can help...happy boating, Mick
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Old 12-10-2004, 01:43 PM
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Default RE: painting a fiberglass boat

You're in for some work, no matter how good you want it to look, but it will be worth it.

Most important step is to make sure you sand the gelcoat VERY adequate, and also ALL stress cracks you find.....grind them out with a dremel tool down to the fiberglass underlay, then fill back in with marine epoxy, and sand sand sand till you're left with a green line (the epoxy filling just the inside of the groove).
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Old 12-10-2004, 04:22 PM
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Default RE: painting a fiberglass boat

Read this thread:

http://thehulltruth.net/forums/threa...=40905&start=1

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Old 12-10-2004, 06:00 PM
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Default RE: painting a fiberglass boat

dewaxing is the single most important step in painting fiberglass boats. they often have years of wax on there hulls. sanding alone will just sand the wax deeper into the gelcoat and when u paint it will not stick and fisheye.
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Old 12-10-2004, 07:36 PM
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Default RE: painting a fiberglass boat

My previous boat*had a gel coat finish and had not been painted

The finish was dull and I was thinking of painting . . . about six years ago

My brother suggested that I buff the finish to see if I could bring back the shine

He was right, after two weekends of work, it looked great . . . not new, but great . . . and only about $250 spent, excluding beer *. . . I used three grades of compound and my brother had the big buffer . . . we took turns working 5 minutes each
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And I need to get myself some new t-shirts with the new name of the boat.
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Old 12-10-2004, 07:39 PM
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Default RE: painting a fiberglass boat

Yep. Don't start by sanding, in fact don't sand at all until you get that old wax off of there, even if it doesn't look like there is any. Wash it several times with liquid dish washing soap, then wipe it down with constantly changing rags and acetone, after that it wouldn't hurt a thing to scrub it down real well with stiff sponges and something like Ajax or Comet, some sort of very abrasive clorine bleach type cleaner. Actually at this point you'll be suprised how good it looks.

The point is that if you sand a hull that hasn't been cleaned beforehand you do not somehow remove the wax in the sanding dust or runoff water if you start your sanding wet. The wax will still be there, just ground into the gelcoat just waiting to screw up your first coat of paint. Anyway, this is great practice for all the sanding that is comming

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Old 12-12-2004, 08:46 AM
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Default RE: painting a fiberglass boat

Xylene works as a good wax and grease remover, better if mixed with naptha.
Check the awlgrip web site and follow the directions to the letter for each type of application process.
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Old 12-12-2004, 09:27 AM
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Default RE: painting a fiberglass boat

I will go along with all the above statements. PREP PREP PREP PREP and more PREP.


Most folks do not prep the surfaces to be painted enough and get fed up with the amount of work involved.

You have to get ALL the old wax off and you want to scuff the surface, this helps with the bonding of the new primer and paint.

If you have plenty of time, a place to keep the boat inside until the work is completed and are NOT IN A HURRY it will turn out great.

I would first talk to a couple of body shops and get them to price it for you, several of the body shops around here do great work on boats, and then go from there.

Keep in mind if you want a perfect finish it is hard to beat a body shop, would you paint your own car???

I have seen plenty of boats that the owners painted themselves and a couple look like they just rolled off the showroom floor and others leave a lot to be desired which kills your boat if/when you go to resale.
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Old 12-13-2004, 12:01 PM
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Default RE: painting a fiberglass boat

As all said above, dewaxing IS the most important first step......I neglected to mention it, before sanding and grinding, lol, because it comes second nature to me, based on various painting projects I have done over the years. There are many good wax/grease removers, but the best can probably be found at a quality body shop supply store. If you know any "body guys", consult them. I have a real good friend that restores antiques and builds muscle cars for a living, and he hooks me up with some GOOD SH!T

Always have great results with the stuff he gives me!
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Old 12-13-2004, 03:46 PM
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Default RE: painting a fiberglass boat

As everyone else mentioned above, remove any hardware screwed or bolted on the boat, dewax, wash, sand, fix any holes and cracks, sand, touch up any fixes,sand, wash again.... Lots o prep work ahead of you, cause the final product depends on how well it was preped to begin with.

Someone mentioned above about pricing it out to a body shop, if you find it too expensive, the roll and tip method works very nice and in many cases can get a better glossy look than spraying. You just need two people, one rolling and the other tipping behind the roller. Keep going and dont go back no matter what. Don Casey has written a couple of good articles on roll and tip method. Checkout this link it will give you a good idea to doing it yourself

http://www.sailnet.com/collections/a...leid=caseyd008

Goodluck!
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Old 12-13-2004, 05:04 PM
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Default RE: painting a fiberglass boat

Use Dupont Prep-sol or PPG 330 wax & grease remover to de wax. It will stay wetter longer.
One rag to wipe it on wet. Another rag to dry it BEFORE the solvent dry's.
If the solvent dries before you can wipe it dry, then rewet the area and dry it with the other cloth. Change your towels often.
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Old 12-13-2004, 06:26 PM
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Default RE: painting a fiberglass boat

I like to use this picture to show what can be done with a roller.* No tipping here:

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Old 12-14-2004, 09:00 AM
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Default RE: painting a fiberglass boat

Quote:
warthog5 - 12/13/2004 5:04 PM

Use Dupont Prep-sol or PPG 330 wax & grease remover to de wax. It will stay wetter longer.
One rag to wipe it on wet. Another rag to dry it BEFORE the solvent dry's.
If the solvent dries before you can wipe it dry, then rewet the area and dry it with the other cloth. Change your towels often.
That's what I was looking for, LOL....I wanted to go out to the garage and see what dewaxer/degreaser he gave me to use, but I didn't.....however I think its the PPG 330....and you do just like you said....I watch him prepping cars for paint nad he does the same thing....wipe it on wet, then wipe it off with a clean cloth.

And for a gelcoat boat, I would imagine you do it over and over and over, LOL
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