Paint inside wheel wells pretty much gone so...

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Thread: Paint inside wheel wells pretty much gone so...

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    2.4 Liter SIDI ECOTEC darklide's Avatar
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    Paint inside wheel wells pretty much gone so...

    Paint inside wheel wells pretty much gone so would applying this help it not rust, and never chip away again?

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    My wheel wells:



    Its even worse higher up , but it was too dark to get a photo.

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    4.6 Liter Northstar V8 W.A.F.U.'s Avatar
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    Re: Paint inside wheel wells pretty much gone so...

    I would not use that stuff. At some point, a rock will scratch it down to the paint again. Once that happens, salt will be able to get in behind the undercoating and once that happens, the car is done. The undercoat at that point will just serve to hold salt against the body for accelerated corrosion.

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    2.4 Liter SIDI ECOTEC darklide's Avatar
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    Re: Paint inside wheel wells pretty much gone so...

    Any other suggestions?

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    3.6 Liter SIDI V6 newdude's Avatar
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    Re: Paint inside wheel wells pretty much gone so...

    Hard to tell what vehicle...looks like a silverado? Maybe some black or matching color Line-X bedliner would do great down there. Or, Duplicolor spray on bedliner. If you diy it, make sure to sand and scuff the paint so it sticks well.


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    2.4 Liter SIDI ECOTEC darklide's Avatar
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    Re: Paint inside wheel wells pretty much gone so...

    Its a 2005 Chevy Cobalt.

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    3.6 Liter SIDI V6 crooner214's Avatar
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    Re: Paint inside wheel wells pretty much gone so...

    I'd say, if you are going to do it, make sure you clean every grain of dirt and salt from every square inch of the wheel wells. Like W.A.F.U said, any salt behind the undercoat will simply rot the body out.
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    Re: Paint inside wheel wells pretty much gone so...

    You might try POR-15. I've never used it, but I know people that put it on just about everything from boat trailers to race cars.

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    2.8 Liter Turbocharged V6 87silver's Avatar
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    Re: Paint inside wheel wells pretty much gone so...

    That looks like the driver's side rear wheel well looking forward from the rear of the car. The Cobalt sitting in my garage has plastic fender wells. I would think that they all do, but I never checked others. The lip is part of the steel body panel (in red) and is pretty resilient to weathering. Keep a good coat of wax on the lip. It's nothing worse than a pock mark on the hood. The black plastic portion needs no care, although we treat it with protectorants for appearance, because we're anal with car care and asthetics.

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    6.2 Liter LS9 Supercharged V8 TiburonJT's Avatar
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    Re: Paint inside wheel wells pretty much gone so...

    This is the only product I've found that stops rust for years - http://www.magnetpaints.com/underbody.asp

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    Re: Paint inside wheel wells pretty much gone so...

    Why don't you have the edges of the fenders done with body-colored spray-on bedliner at the same time you're having the bottom edges of the doors done?

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    2.4 Liter SIDI ECOTEC darklide's Avatar
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    Re: Paint inside wheel wells pretty much gone so...

    Quote Originally Posted by OkemosOracle View Post
    Why don't you have the edges of the fenders done with body-colored spray-on bedliner at the same time you're having the bottom edges of the doors done?
    I'll see how much it cost.

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