RazMan
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| posted on 26/4/06 at 10:06 PM |
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'Silver wheels' Paint on Fibreglass?
Sounds a bit of a bodge I know.
I want to paint the backs of my fibreglass seats silver - the same silver as my wheels in fact. I happen to have a couple of cans of Halfrauds
'Silver wheels' left over from another project.
Will it be ok on my seat backs? It is certainly tough enough on the wheels.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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TangoMan
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| posted on 26/4/06 at 10:11 PM |
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Adhesion is the key!!
I would key then well with fine paper and apply some adhesion promoter/plastic primer.
Should be OK then if not the shiniest finish ever.
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RazMan
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| posted on 26/4/06 at 10:17 PM |
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I was thinking about a good coat of acid etch then a couple of coats of the silver. I'm actually looking for a slightly dull finish so I thought
that it would be perfect.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Chippy
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| posted on 26/4/06 at 10:30 PM |
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Not absolutely sure, but I don't think that acid etch works on GRP. I think your best bet is to form a mechanical bond by a good rubbing down
with a fine wet and dry. atb Chippy
Plus make sure that all traces of release agent, and wax are removed, rub over with some solvent.
[Edited on 26-4-06 by Chippy]
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02GF74
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| posted on 27/4/06 at 07:02 AM |
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quote:
Originally posted by Chippy
Not absolutely sure, but I don't think that acid etch works on GRP.
from what I know, acid etch is for aluminium to attack the oxide coating hence providing a key for the paint. doubt is it has the same effect on
other materials.
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DarrenW
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| posted on 28/4/06 at 09:58 AM |
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Im sure i have read somewhere that there is an etch primer or similar surface prep primer for fibreglass. The main pain might be that the backs of
seta are rough so the finish might be questionable. Might be worth trying a low key area first. Do you have any off cuts from side panels etc to
sample it on?
The backs of my seats are rough and looked a bit messy. I cleaned them up and applied some of the clear back to black tyre dressing (the stuff you can
use on exterior plastics as well) which brought them up quite well. Obviously didnt change the colour though.
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RazMan
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| posted on 28/4/06 at 10:14 AM |
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I've got some etch primer designed for fibreglass and it seems to work ok from past experience. I may have got the name 'acid' wrong
there.
The seats are smooth backed so the preparation is simply flatting them back with a DA to ensure a good key. They are in fact the first ones from the
mould and are therefore not perfect, hence my plan to paint them.
[Edited on 28-4-06 by RazMan]
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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andyharding
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| posted on 28/4/06 at 01:53 PM |
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I'm using Acid #8 etch primer on my GRP. You can get this is spray cans from Halfrauds if you don't want to buy a 1L tin and put it in
your gun.
Are you a Mac user or a retard?
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chrisf
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| posted on 28/4/06 at 11:44 PM |
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Having just painted my GRP bits twice, I don't think the DA is the tool to use. I suggest sanding the GRP with 400 grit on a board and use soapy
water as you go. Once the seat back gets a haze, then it's ready to paint. The primer you have will work well, as will the base coat. Few seem
to go this extra step, but I also used a professional clear coat. This adds the final hard layer and protects the basecoat from UV.
You can see my results on my website. Certainly not shiny!
--Chris
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