Benzine
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| posted on 8/6/08 at 10:18 AM |
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Joining fribreglass panels
At the moment with my bodywork I want to join the doors permanently to the rest of the bodywork as they are of no use.
See pic:
I want it so you can't tell a door was ever there basically. There's loads of surfaces behind the door to plaster a load of fibreglass
across it and it'll be strong, what about the front gaps though? Just bung fibreglass and resin in there and sand down? Gaps vary from about 5mm
to tiny hair width
Also, when laying new fibreglass onto existing fibreglass, can I just key the surface and it'll bond?
[Edited on 8/6/08 by Benzine]
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Mark G
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| posted on 8/6/08 at 10:30 AM |
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I don't know much about fiberglass but I know it'll be difficult to do without it cracking over time.
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Benzine
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| posted on 8/6/08 at 10:44 AM |
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I've stripped the doors right down to just the outer panel so they are v.v.light now so I can't see them having much stress on them, idk
though 
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tootall
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| posted on 8/6/08 at 11:09 AM |
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are the doors fibre glass? if so u need to step them down at the edge and step quater panel down around edge that meets the door, and lay fiberglass
matting and resin over the two. Over lapping and gradually put wider layers over to fill the stepped area. if u can understand what im on about.
if u clean off all paint and key the fibreglass and make sure it is free of dust etc your new fibreglass should stick fine
Rob
some people dream of sucsess, others just get on and do it !!
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Benzine
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| posted on 8/6/08 at 11:14 AM |
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Yeah they are fibreglass doors, thanks for the tip, I understand what you mean ^__^
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Humbug
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| posted on 8/6/08 at 11:28 AM |
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Don't know about the properties of the fibreglass, but I would PU and bolt the doors in the place you want them before attempting to finish off
the cosmetic bit
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Volvorsport
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| posted on 8/6/08 at 11:31 AM |
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acetone to clean it up and sand back .
get some chops to bridge the bigger gap .
4 inch tape to bond the doors up . if youd asked i could have given you some !
www.dbsmotorsport.co.uk
getting dirty under a bus
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twybrow
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| posted on 8/6/08 at 12:27 PM |
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Can you work from the inside of the panels? If so use the following technique:
Start off with roughing up the surface syou plan to bond to. Clena up with acetone (or soapy water and leave to dry). Use something like masking tape
on the outside, to bridge each of the gaps you plan to fill. This gives you a reasonable suface to fill up against. Then fill from behind with some
gelcoat (preferably with some thickening agent added such as talc type materials). Once the gel is cured, working again from the inside, layup some
chop strand mat into and over the panel gap. Add a few layers until you have covered around 50mm minimum on each side of the gaps.
Now allow it all to cure, then remove the masking tape, and sand/polish the shut lline. It might need a bit more gelcoat to really blend the join, but
it should do te job. You should beable to achieve a 100% seamless join this way.
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Benzine
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| posted on 8/6/08 at 12:43 PM |
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Yeah I can work from the inside, got really good access. Thanks for all the tips, I'm about to get cracking with it now 
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