question for you fiberglass gurus - Exterior Forum

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question for you fiberglass gurus
Saturday, November 01, 2008 7:01 PM
I have a 2003 cavalier 2 dr, not that that matters in this case.

My car has a spoiler on the back which is an aluminum spoiler, on the car when i bought it, but i want to shave it off. does it HAVE to be welded or can i fiberglass with mat from the backside and then use body filler on the top part of the trunk? If that is possible how long should that last once i get it primered and painted?

I am pretty knowledgeable when it comes to fiberglass so i should be able to knock it out in a day or 2, but my question is whether or not its the right approach.

thanks in advance.




Under Construction

Re: question for you fiberglass gurus
Saturday, November 01, 2008 7:26 PM
Get your trunk welded, or get a new trunklid with no holes. Fiberglass and metal expand and contract at different rates, it won't last long at all.




Re: question for you fiberglass gurus
Monday, November 03, 2008 6:37 PM
correct, fiberglassing a hole shut=rust and it will sink or bubble in a few months
fiberglass is not as good as people think it is, for interior custom work ya its great, but its more porus then bondo, it is not corrosion resistant, and it is not water proof
now the new products from evercoat, has kevlar in it, it is water proof, corrossion resistant, and it eliminates the seams that die back down, awesome stuff, even there new bondo is corrosion resistant and water proof
so do what she says and do what i say


can i haz bondo
Re: question for you fiberglass gurus
Monday, November 03, 2008 8:20 PM
i say also just grab a used trunk lid from your local "pick a part"


WHAT DO YOU THINK?
Re: question for you fiberglass gurus
Tuesday, November 04, 2008 2:58 AM
you could glass it, but it will pop out so its almost pointless to do. like others said, get it welded shut or better yet find a cheap lid in a yard near you.



Re: question for you fiberglass gurus
Tuesday, November 04, 2008 5:11 PM
you could notn just glass a hole shut, it will bubble right up in a few months, i dont understand when some one with yrs of experience posts correct info, someone has to come along and post the wrong info
has anyone welded on a deck lid?? the metal is so stretched to make a deck lid and now you putting more heat to it, i have been in the trade for close to 20yrs and i still get warping from time to time
glassin a hole shut is butcher work back yard dumbass that dont know wtf they are doing,
please when your ready to post correct info then by all means go for it bu until then let the adults play.............geesshhhh


can i haz bondo
Re: question for you fiberglass gurus
Wednesday, November 05, 2008 6:54 PM
My 99z had a stock Spoiler, I fiberglassed and bondo, the holes and it works just fine, also used glass and bondo to shave taillights and key hole, been that way for about 18 months now with no problems. pics are kinda far off sorry.
http://www.cardomain.com/ride/2951437
Re: question for you fiberglass gurus
Wednesday, November 05, 2008 8:22 PM
so majority says weld it.

i saw something about 3m structural adhesive that is supposed to be stronger than a weld. What if i used that and then body filled in on top just like welding a piece of metal?

not trying to cheap out, i would just like to do it myself and i dont have the know how to weld.

thanks a bunch guys.




Under Construction
Re: question for you fiberglass gurus
Wednesday, November 05, 2008 9:55 PM
WELD IT!!!!!!!! Or get someone else to... ANYTHING that you use other than metal won't work permanently, as any other material ONCE AGAIN expands and contracts at different rates. I said that in my first post.




Re: question for you fiberglass gurus
Thursday, November 06, 2008 4:49 AM
big daddy he said you could do it but it would pop out and be pointless he was basically saying yeah you can do it but its going to be messed up and not work then he said to weld it. basically what both you and fallen also pointed out so pull your panties out of your but and relax a bit.


http://www.flickr.com/photos/sndsgood/ https://www.facebook.com/#!/Square1Photography
Re: question for you fiberglass gurus
Thursday, November 06, 2008 5:12 AM
Ray Hoose wrote:My 99z had a stock Spoiler, I fiberglassed and bondo, the holes and it works just fine, also used glass and bondo to shave taillights and key hole, been that way for about 18 months now with no problems. pics are kinda far off sorry.
http://www.cardomain.com/ride/2951437


did you actually glass the tails into the metal trunk lid?

wow, what a hack







Re: question for you fiberglass gurus
Thursday, November 06, 2008 5:25 AM
sndsgood wrote:big daddy he said you could do it but it would pop out and be pointless he was basically saying yeah you can do it but its going to be messed up and not work then he said to weld it. basically what both you and fallen also pointed out so pull your panties out of your but and relax a bit.


Who needs to relax a bit? I hope that wasn't directed at me, because my panties weren't in a bunch.




Re: question for you fiberglass gurus
Thursday, November 06, 2008 1:54 PM
well i thank you all for the advice. ill either be having it welded or going to my local pick n pull.






Under Construction
Re: question for you fiberglass gurus
Thursday, November 06, 2008 3:12 PM
big daddy wrote:correct, fiberglassing a hole shut=rust and it will sink or bubble in a few months
fiberglass is not as good as people think it is, for interior custom work ya its great, but its more porus then bondo, it is not corrosion resistant, and it is not water proof
now the new products from evercoat, has kevlar in it, it is water proof, corrossion resistant, and it eliminates the seams that die back down, awesome stuff, even there new bondo is corrosion resistant and water proof
so do what she says and do what i say


ok i would like to respond to this i do agree that fiberglass on metal on cars is a bad idea but to say fiberglass is porous is not rite. i have worked in the fiberglass industry for over 22 years making anything from underground fuel tanks to water tanks and boats. the fiberglass that i use does not corrode and is water proof . i do want to say that fiberglass on cars will stay for a year or so if it is dun rite but it is still not a good idea but that is just my opinion
Re: question for you fiberglass gurus
Thursday, November 06, 2008 8:24 PM
the fiberglass that you may use could be different then what we use on sheet metal, not the metal you use it on, big difference here pal, evercoat has a upgraded version of the popular "fiberglass" it has kevlar in it, it is water proff, and rust proof, and it elminates shirnkage, the dies back that we all see when someone shaves a door handle or puts a 1/4 on and you see the seam in the sail panle
the fiberglass used on boats is not what we use on sheet metal again totaly different animal, but hey he can do what he wants and when it bubbles back in a few months and then posts up here that it bubbled i can come back and say i told you so


can i haz bondo
Re: question for you fiberglass gurus
Thursday, November 06, 2008 10:21 PM
big daddy wrote:
but hey he can do what he wants and when it bubbles back in a few months and then posts up here that it bubbled i can come back and say i told you so


did i not say that i was going to get it welded or go buy a new trunk? im not a dumb@$$ when it comes to this stuff, was just curious is all.




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