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Mamba Still On Top
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Discussion Starter #1
I have a replica Top Secret Bumper. The Fitment is great but there are waves in the fiberglass. When you look accross the section between the headlights, the fiberglass looks like it has sunk lower in certain places.

What is the fix for this? Sanding down and swiping bondo across? I don't want the waves to come back, so what is the best way to fix this?

Thanks, Mike
 

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Driver Down
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1,991 Posts
MDSuPeRStAr said:
I have a replica Top Secret Bumper. The Fitment is great but there are waves in the fiberglass. When you look accross the section between the headlights, the fiberglass looks like it has sunk lower in certain places.

What is the fix for this? Sanding down and swiping bondo across? I don't want the waves to come back, so what is the best way to fix this?

Thanks, Mike
you could bond some aluminum bar stock (thin stuff) to the problem area, if it isn't visible. I'm not entirely sure what bonding agent would work, i'll look into it.

I have seen a lot of cars with those sags, and I belive it is caused by pressure exerted on it from high speeds.

An old friend had a 2000 Mustang GT that had a wave in the rear bumper just below the rear license plate. Seems air got trapped in there, exerted a lot of pressure on the area and repeated highspeed driving warped it.

You could also apply some resin and fiberglass mat to reinforce the area if it is really flimsey. Hope bondo isn't necessary, but it may be to get it 100% smooth.
 

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Mamba Still On Top
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Discussion Starter #3
Im not so much sure its from high speeds. Havent been much past 80 really. It seems to me that it has started to sag due to being out in the sun (the bumper is only 3 months old or so), but I'm not sure. Why would air get trapped behind the bumper though, wouldn't it get sucked in by the fan and radiator?

Zylo, you are the man, keep it coming. :cool:
 

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ELITECUSTOMBODY
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6,552 Posts
apply one layer of 6oz fiberglass mat to the backside, prep the area with 80 grit paper wipe some bondo,block it ,prime it ,block it again and paint,it will not come back,it is just too big of an area without reinforcement,the exposure to sunlight made it to sink,but since it has already sunk,it will not get any worse ,i've worked on all kinds of body kits, and seen all kinds of problems,from wrinkles to blisters,bubbles,and all kinds of fitment issues even from Veilside ,Bomex and C-West ,if you need more info,just give me a call
Stefan
 

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Chillen at the Holidae In
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Post a pic of the problem area and then post a pic when your done fixing the problem.

steve
 
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What you need to do depending on the size of the waves is this.
sand down the bumper so that u dont have any paint where there is waves. This is because fiberglass doesnt stick to smooth surfaces too well.

If the waves are small u can just apply some bog and sand till the surface is smooth but if its badly warped then add a layer of fiberglass to the top then add bog to smooth.

Experiment with the fiberglass resin first a few times before you do this if u havent worked with fiber before. Too little catalyst and the resin wont set and too much and ull have a fire hehe.

goodluck
 
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if your really good with fiberglass the best thing to do is to put bog and smooth the bumper till its perfect and then make a mould out of it, then u can make a brand new bumper heeh. but this is an involved process if you dont know what your doing.
 

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Mamba Still On Top
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Discussion Starter #8
A local Body shop quoted me $870 to take off the bumper and block it and paint it and make it perfect. To me, this seems like quite a bit. They said it would be $5-600 if I took the bumper off myself and brought it in.

I need some advice paint and body specialists!!

I would go to you exvelocity, but Im in Socal and you are in Florida.

Thanks again, Mike
 

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Original Owner
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MDSuPeRStAr said:
A local Body shop quoted me $870 to take off the bumper and block it and paint it and make it perfect. To me, this seems like quite a bit. They said it would be $5-600 if I took the bumper off myself and brought it in.

I need some advice paint and body specialists!!

I would go to you exvelocity, but Im in Socal and you are in Florida.

Thanks again, Mike
thats a fucking rip
 
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