Fibreglass bonnet prep

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Fibreglass bonnet prep

Postby Lurkin » Sat Apr 09, 2011 6:06 pm

Picked up a fibreglass bonnet cheap the other day.. unfortunately after a clever chap has had a go a spray painting it...

Any ideas/ tips for preparing it for paint? was thinking of sanding it off and starting again from scratch (doing the sanding prep then getting it professionally painted) i.e. what sandpaper to use etc? tips?
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Postby Bling » Sat Apr 09, 2011 6:31 pm

How bad is the surface? If you're paying someone to paint it, just get them to do the whole job. Will be a better finish.
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Postby Lurkin » Sat Apr 09, 2011 7:03 pm

Surface is pretty good from what I can see... just thought it would be cheaper doing the prep work myself - and spending $$ on the actual painting.
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Postby Akane » Sat Apr 09, 2011 7:26 pm

Is it CSM or DB? Is it strong enough if you sand a good layer off it?

Give it a good sand, bog up blemishes with fairing compound.
Sand again, prime, sand a paint.

I strongly suggest using a 2 pot system for fibreglass, but they're expensive
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Postby Lurkin » Sat Apr 09, 2011 7:36 pm

unsure if it is csn or db? (or what that actually means) I think it is one of these:

http://www.trademe.co.nz/Trade-Me-Motor ... 119356.htm
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Postby Akane » Sat Apr 09, 2011 7:50 pm

If that's the case then give it a good sand, you MIGHT wanna put a layer of fibreglass down at the bottom if it's too weak, But get all the paint off first. Use 40 grit first, it's gonna take A LONG TIME.
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Postby Malcolm » Sat Apr 09, 2011 8:38 pm

if it's just been spray painted then there's a good chance some paint thinners will remove it, give that a crack first.
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Postby Lurkin » Sat Apr 09, 2011 10:20 pm

hmm na think I'll stick to either finding a fibreglass friendly paint remover from bunning etc, or using wet and dry grade paper.

Paint doesnt appear to thick or too well stuck on - discovered headlight cleaner was capable of taking if off...
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Postby Malcolm » Sat Apr 09, 2011 10:33 pm

Lurkin wrote:hmm na think I'll stick to either finding a fibreglass friendly paint remover from bunning etc, or using wet and dry grade paper.

Paint doesnt appear to thick or too well stuck on - discovered headlight cleaner was capable of taking if off...

guess what, paint thinners are a fibreglass friendly paint remover.
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