caber
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| posted on 15/7/07 at 12:30 AM |
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Glass fibre painting.
What is the best preparation for glass fibre before painting? What is the best under coat and finish paint? Is there any specific thing required to
get rid of release agent or wax?
TIA
Caber
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Davg
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| posted on 15/7/07 at 12:41 AM |
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Plenty elbow grease and good quality washup liquid  as to undercoat, aka primer, summat flexi!
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RazMan
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| posted on 15/7/07 at 07:53 AM |
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Any release agent residue will probably go during the rubbing down process but a wash down with panel wipe will help.
As for primer, use a good etch primer - always available from your local paint factors.
If you tell them your application they might put a little plasticiser in your base coat & laquer mixes - it helps guard against cracking and stone
chips.
[Edited on 15-7-07 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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caber
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| posted on 15/7/07 at 06:22 PM |
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Laquer! I wasn't going to do a metallic finish! I am just after a nice black to go with the ally panels, I have , for the moment decided against
a full paint job.
Caber
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Syd Bridge
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| posted on 16/7/07 at 05:56 PM |
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There is no such thing as 'etch primer' for gelcoat. At least not that I know of.
The accepted best (in marine industry at least) method for painting new gel is as follows;
(Depending on release agent type)Wipe down with panel wipe to remove wax.Wipe with acetone to remove any liquid release.
Wet sand with 600~800, depending on requirements.
Prime with hi-build two pack epoxy primer/filler.
Flat back with 600~800 between 24 and 48 hrs. After this, any paint will go on top. Best with a two pack, but the epoxy primer will give a good base
for any finish.
You can substitute most two pack car primers for the epoxy, but with a little less effective results.
The above method is also the accepted method for most composite aero and car parts, and has been for far too many years for me to remember when it
became everyday accepted practice.
Cheers,
Syd. 
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