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02-17-2020, 04:39 PM | #1 |
Senior Member
Join Date: Sep 2017
Location: Minnesota
Posts: 114
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Rock chips on fender
When I put the car away last fall I noticed some small star shaped rock chips on the front fenders. I live on a mile and a half of gravel road and the tires are picking up rocks and causing the problem.. Does anybody use bed liner or ? under the fenders to stop this... would like to do something this spring.. Hate to move to town...Thanks
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02-17-2020, 06:25 PM | #2 |
Senior Member
Join Date: May 2010
Location: Raleigh, NC
Posts: 510
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Re: Rock chips on fender
I used some brush on undercoating I got at the local chain auto chain store and it works well...It has been fine for 30 years now.
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02-17-2020, 07:08 PM | #3 |
Senior Member
Join Date: Sep 2017
Location: Minnesota
Posts: 114
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Re: Rock chips on fender
I have been looking at some of that. Rhino liner and others. Didn’t know if it would stay.
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02-17-2020, 07:14 PM | #4 |
Senior Member
Join Date: Apr 2015
Location: Saint Cloud Mn
Posts: 745
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Re: Rock chips on fender
3M spray on undercoating.
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02-17-2020, 08:27 PM | #5 |
Senior Member
Join Date: Jun 2015
Posts: 1,414
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Re: Rock chips on fender
If you have a compressor, I use 3m Body Shutz (per post 4) when applied with an undercoating nozzle. Some versions can be painted or left as applied.
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02-18-2020, 02:13 AM | #6 |
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Join Date: May 2010
Location: Oregon
Posts: 5,966
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Re: Rock chips on fender
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02-18-2020, 07:45 AM | #7 |
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Join Date: May 2010
Location: Van, Texas
Posts: 1,122
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Re: Rock chips on fender
For the undercoat in rattle can, or any undercoating or spray in bed liner for that matter, the original paint - in this case under the fender - needs to be squeaky clean then roughed up with at least 220 sandpaper. It needs the "tooth" to adhere and stay there.
Did the underside of my fenders with rattle can undercaoting as per the instructions from a pro undercoater/bed liner friend. Looks great but have not had car out on the road yet. |
02-18-2020, 11:51 AM | #8 |
Senior Member
Join Date: May 2010
Location: Michigan
Posts: 1,593
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Re: Rock chips on fender
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02-18-2020, 03:23 PM | #9 |
Senior Member
Join Date: Sep 2017
Location: Minnesota
Posts: 114
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Re: Rock chips on fender
My fenders are metal...there seems to be a lot of different products. just to pick one. I have access to a compressor so maybe that 3m stuff. ?
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