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View Full Version : Can fiberglass be molded after being cured?


az_240
05-13-2006, 08:55 PM
http://i12.photobucket.com/albums/a229/livinglegendlll/DSCF00042.jpg
Basically I bought a nismo style rear bumper and one of the valances is warped pretty bad where the top edge sits against the car.
Does anyone know if ill be able to mold this straight with a heat gun?
Any suggestions(nothing stupid please)?

fliprayzin240sx
05-13-2006, 09:02 PM
You can try to use a heat gun...sometimes it straightens out a bit, sometimes it wont. If it doesnt, your only choice is to break it and rebuild it.

Ragnarok043
05-14-2006, 12:23 AM
try soaking it hot water to soften the resin.

az_240
05-14-2006, 01:29 AM
^thats what I was afraid of... having to break it and rebuild it.
Guess it couldnt hurt to try and hit it with a heat gun or soak in hot water

Thanks for the suggestions

kay_arsen
05-14-2006, 11:45 AM
thats why fiber glass sucks ass i have fiberglass sides and ones sides fits like ass

!Zar!
05-14-2006, 04:22 PM
A heat gun should do fine.

MeLon
05-14-2006, 05:30 PM
You can heat it up and flatten it straight. But once it cools down, it will warp again.

blackflag_Rms13
05-14-2006, 09:03 PM
^^^ Maybe if you put it in a vice or something while it cools? Maybe?...

m0rex
05-14-2006, 09:32 PM
I want some information on this too. I have the same problem. I got my s14 painted and those damn rear balances look like they have dents when the light shines on it.

trapspeed
05-14-2006, 09:38 PM
My guess is if you get it heated up to a high enough temp you should be able to mold it.

alexchanman
05-14-2006, 09:51 PM
hair dryer or hot water should do the trick.

REDSH!FT
05-14-2006, 10:05 PM
Get a real heat gun. It's pretty damn warped and a hair dryer more than likely WON'T get it done...


Heat it up as hot as you can, use some thick gloves, and bend that biotch. Once it's near the right shape...heat it real hot and fit it to the car


done and done

az_240
05-15-2006, 03:42 AM
For the dents I was gonna flatten it out the best I can by block sanding it.... If its still bad im gonna put some flexable body filler on and get that smooth. The rest of the bumper looks alright but there is like 2 cracks in it.

Thanks for the advice... I think im gonna try the heat gun method as soon as I can find a heat gun.
Ill let you guys know how it turns out.

az_240
05-15-2006, 03:15 PM
Well I just put the piece in the oven (didnt have a heat gun) and let it sit for a couple minutes at a lil less than 200degrees. Took it out (it was kinda soft)
and pressed it flat on my counter with a pair of gloves for about 10 minutes until it was cool...
Looked at it and it was actually pretty flat! Ill probably try it 1 more time to get it as flat as I can.
SO THE ANSWER IS YES YOU CAN SLIGHTLY SHAPE FG BY HEATING IT!!!!!!!!!!!!!!!!!!!!

Ragnarok043
05-16-2006, 03:20 PM
Well I just put the piece in the oven (didnt have a heat gun) and let it sit for a couple minutes at a lil less than 200degrees. Took it out (it was kinda soft)
and pressed it flat on my counter with a pair of gloves for about 10 minutes until it was cool...
Looked at it and it was actually pretty flat! Ill probably try it 1 more time to get it as flat as I can.
SO THE ANSWER IS YES YOU CAN SLIGHTLY SHAPE FG BY HEATING IT!!!!!!!!!!!!!!!!!!!!

while holding it flat against the counter, spray some water to cool/harden it. this should stop most of the flex back.

infinitexsound
05-16-2006, 11:14 PM
rebuild it, fiberglass isnt that hard to mess with.... just be clean about workin with it cause it gets kinda messy at times....... ray ray knows..

az_240
05-17-2006, 03:29 AM
why would I rebuild it when I already made it straight by heating it:doh: