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Registered:
February 2003
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Paint preparations- fibreglass
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Mon, 14 April 2003 08:29
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Guys, just have a question about painting fibre-glass. If i was to paint something that was fibre-glass with a gel-coat finish, how would i prep the surface, paint and finish it?
I have the usual stuff like an air-compressor, spray gun/airbrush.
Types of products/brands would be appreciated!
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: Paint preparations- fibreglass
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Mon, 14 April 2003 12:32
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 i just use normal acrylic primer (primer filler is good, i can never get it perfect and the primer filler helps fill any little imperfections) and paint on all my fibreglass creations...
make sure you use wax and grease remover (prepsol) before you prime, and again before you paint. use a different cloth to appply it and another to wipe it off.
you can buff it if you want after a few days to get rid of any bits of overspray, but it is not really recommened to polish new paint for about 3 weeks.
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Location:
Finland
Registered:
November 2002
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Re: Paint preparations- fibreglass
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Mon, 14 April 2003 12:44
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Just wanna add that gel-coat finish should be wet sanded before any other actions.
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: Paint preparations- fibreglass
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Mon, 14 April 2003 13:19
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doh!! yeah wet sanding for sure..
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Registered:
February 2003
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Re: Paint preparations- fibreglass
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Mon, 14 April 2003 15:08
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So in other words,
1.I would wet sand the surface of the object first
2.Then use grease remover to remove dirt/grease etc
3.Use Primer filler
4.Paint
5.Then add a clear coat over the top?
6.Buff
-How much do i have to wet-sand the suface? (pls run thru)
-How many layers of primer filler? -and do i have to sand in between each layer (if required)
-Is thicker the better and will this be weather resistant?
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Location:
Finland
Registered:
November 2002
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Re: Paint preparations- fibreglass
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Mon, 14 April 2003 21:35
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This is what I would do...
1. 400 wet sanding and sand it just enough to get gloss off.
2. Grease remover
3. Spray light layer of primer/primer filler.
4. Sand to smooth, because primer leaves unsmooth surface. You might have to use dry sanding first(~400) and then wet sand it by starting 400 to 800 if you like. This sanding sets the final surface, so go smooth. Dont wear out the layer.
Skilled sprayer gets the primer surface quite smooth.
5. Grease remover
6. Actual painting
7. And so on...
Im speaking only from my own experience. Im no professional painter.
Are you doing actual painting your self? Are you using paint and clear coat? Or (HS) paint and clear coat combination? are you using 2component paint? What are you painting sideskirts? just out of interest.
I have been happy with Spies & Hecker products, I dont know can you guys get hand on these? Spies & Hecker provides almost everything. Use only good quality sanding paper like 3M, use low quality paper and you see why I said this  .
I assume that primer filler means thick primer not spray putty.
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Location:
Finland
Registered:
November 2002
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Re: Paint preparations- fibreglass
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Mon, 14 April 2003 22:06
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Forget to say that if your doing some big part like hood, you might wanna add to paint and primer that stuff which makes it more elastic so it doesnt crack, dont know the real name.
There is also plastic/fibre glass adhesive.
This starts to sound expensive and difficult ...
...its not.
Ask from car paint shop, they normaly give good advices  , assuming that worker there isnt one of those "I dont know, Im just working here" types.
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