Polyeurethane/Fiberglass

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derost
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Location: Edmonton, Alberta

Polyeurethane/Fiberglass

Post by derost »

I imagine the front bumper/facia on the Aveo is Poly. Can you use fiberglass with poly, such as filling large openings in the bumper? If you havent guessed already, Im thinking of shaving my front markers from my bumper, and modifying the grill opening. I'd rather not have to make a cast for a full fiberglass replacement bumper, but I guess if thats what it takes... I'll add it to my already lenghty list of DIY projects.

Thanks,
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lanos2001
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Post by lanos2001 »

you can use fiberglass but i recommend using the fiberglass sheets with the resin first then to make it look better some Fiber-All or bondo fiberglass filler. with the sheets though makes sure you overlap the edges a lot so it has a good anchor on it. then sand it roughly with 180 grit sandpaper so the next layer of fiberglass has something to grasp.
i hope this made sense.

nick
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PrecisionBoost
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Post by PrecisionBoost »

Fibreglass doesn't stick to plastic all that well....the plastic tends to be more flexible than the poly and you end up with cracks at the joint.... and eventually the fibreglass could separate and fall out.

You'd be better off having someone "plastic weld" pieces into the holes.

You should be able to find a body shop with a plastic welder.... sometimes they are used in repairs of bumpers.

If you are going to try fibreglass you should bond a thin fibreglass sheet with a high strength flexible epoxy that is designed to adhere to poly and fibreglass...... I personally don't like using Bondo for adhesion to plastic.... it tends to separate if you bang the plastic hard.

I also sometimes use good old plywood.... make a box, fit it in perfectly and then fibreglass it with some thin material and resin.

Then you sand it down, push it in and secure it from the rear of the bumper. ( this way it can be removed later if you want)

Then you can finish it off with bondo to make it perfectly smooth if you want to.

Usually the bondo will crack if you smack the bumper hard but it's the easiest substance to work with when trying to get a nice smooth surface.
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derost
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Joined: Thu Sep 15, 2005 9:56 pm
Location: Edmonton, Alberta

Post by derost »

!POP!

There goes my bubble again. :lol:

Well... I would want it to look as good as possible, so I guess I cant cheap out on it. Id have to just make a whole new bumper, or I guess while Im at it, a bodykit. Have some ideas for a hood too...

Bah! Damn limited budgets!! :?

This will probably never see the light of day... although I would love to try it. So many ideas... so little money.
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