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How to repair acid rain etching in automotive clear coat ?

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How to repair acid rain etching in automotive clear coat ?

Old 11-28-2008, 03:33 PM
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Default How to repair acid rain etching in automotive clear coat ?

After washing and drying my 2005 truck, I noticed what appeared to be small water spots on the hood. I tried Mother's cleaner / wax, Mequirs deep clean (both by hand and with foam pad on a buffer). Neither had any effect. I decided to search the internet for info and solutions. I've found enough info to lead me to believe that Ihave acid rain ectching in my clear coat. But I'm having a hard time finding a good solution.

Has anybody found a good product for repairing this problem? I'm thinking a very light cutting compound is probably in order.

Any ideas?
Old 11-28-2008, 03:59 PM
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Default Re: How to repair acid rain etching in automotive clear coat ?

Wet sanding and buffing will be the best way to get rid of them.
Old 11-28-2008, 05:53 PM
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Default Re: How to repair acid rain etching in automotive clear coat ?

05 truck......what kind/ make?

IMPO forget the wet sanding, go with a lite compound and a lamb's wool buffer........it'll look like new! Just make sure you keep that buffer a moving so you don't burn through the finish. Then figure out how to properly store the truck so it doesn't take so much abuse.
I used to own and operate a body shop.
Old 11-28-2008, 06:18 PM
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Default Re: How to repair acid rain etching in automotive clear coat ?

Truck is a Nissan Titan.

I can't feel the marks with my hand or catch the edge of one with a fingernail. I honestly think wet sanding would be too aggresive for this mild a case. It seems to me that a light cutting compound is in order. Not sure which one to go with though.

Garrett, I thought the lamb's wool is for final buffing of wax and that a foam pad is what I would use with a light compound.
Old 11-28-2008, 06:52 PM
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Default Re: How to repair acid rain etching in automotive clear coat ?

Buffing alone takes the finish down uneven, wet sanding with 1500 and then a light buff will remove the etching and it will shine better than when it was new. I would bring it to a pro if your not skilled with a wheel.
Old 11-29-2008, 12:24 AM
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Default Re: How to repair acid rain etching in automotive clear coat ?

I use both types of pads, for different reasons. Just like the use of wet sanding, they all have their time and place. I suggested the wool pad because I was picturing the finish you were talking about. I felt all you needed to do was pick up the shine, not rip into the finish.

I've been removed from my body shop days now for some time. I would suspect the clear coat finish on your truck is probably about 3 ml thick (3 millionth of an inch), at super best 7 ml. Either way you look at it your finish is not very thick, so go easy with the buffer, especially over your edges. You are miles ahead of the game if you have to buff out the truck a second time then if you were to go to far the first time.

Sorry I can't give you brand names of compound because I always got my compounds through a friend, he was pulling them a gallon at a time out of a factory. Give a few body shops a call and see what they are using and where they are getting it from, they shouldn’t mind you asking.....I'd suspect Pepboy, UAP or NAPA. ?

On face value there is coarse, medium and fine compounds, that's face value. In the industrial world there is multiples of each category. Without seeing your trucks finish I would suspect all you'd need is two compounds. Let's say there is ten different grits of fine compound category, the coarsest fine grit is a 1 on a scale of 1 to 10 and 10 is the finest of fine. I would look at using a number 2 or 3 compound and then finishing things off with a number 8 or 9 compound. If you only buy one fine compound then I'd suggest something around a number 5 or 6. If you do go with two different grits of compound, MAKE SURE you properly clean your buffing pad of the coarser grit compound before you start with the finer grit compound, that or use a different pad for the different grits.
Old 11-29-2008, 09:37 AM
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Default RE: How to repair acid rain etching in automotive clear coat ?

Garry's wax will get that out. Garry's Royal Satin compound wax...

I get that when I park at this one parking lot near my store. They have the building's hot water and steam pipes over the garage and they leak some really nasty lime water that leave splatter marks.

I wash the car and use Garry's on the spots and they disappear.

GL
Old 11-30-2008, 09:57 AM
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Default Re: How to repair acid rain etching in automotive clear coat ?

Collinite cleaner then wax. If this does not work then 3M finess-it II (sp?).
Old 11-30-2008, 11:38 AM
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Default Re: How to repair acid rain etching in automotive clear coat ?

bms1939 - 11/28/2008 6:59 PM Wet sanding and buffing will be the best way to get rid of them.
Yesterday, I spoke with a localautomotive detailing shop and a local supplier of automotive paints and they both statedthe same thingbms1939 did.

I just dread the thought of wet sanding the paint on my truck. It's still so new (only has 18k miles on it) and with the exception of the roof and the hood, the rest of the paint is perfect.
Old 11-30-2008, 12:20 PM
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Default RE: How to repair acid rain etching in automotive clear coat ?

Brad ask the folks you spoke to, to show you what to do. They shouldn't have a problem doing that, buy your materials through them, and tip the guy that shows you a 20, they don't need to do the whole hood just a little section.
Old 11-30-2008, 04:53 PM
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Default Re: How to repair acid rain etching in automotive clear coat ?

Find a good detailer and have it clay bar polished.
http://www.properautocare.com/usclaybartor.html


http://www.youtube.com/watch?v=yfEfLGL59GI

http://www.zainostore.com/Merchant2/...18&Screen=PROD
Old 11-30-2008, 06:04 PM
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Default Re: How to repair acid rain etching in automotive clear coat ?

Try a clay bar. It is easy to use and will make the finish look great, without wet sanding.

http://www.mothers.com/02_products/07240.html
Old 11-30-2008, 06:49 PM
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Default RE: How to repair acid rain etching in automotive clear coat ?

I don't feel using the clay bar will affect the spots. It will make it very smooth, what it does is pick up the fine material out of he finish, but I have not seen it get rid of the spots.
Old 11-30-2008, 07:04 PM
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Default Re: How to repair acid rain etching in automotive clear coat ?

Reel Boobs - 11/30/2008 9:04 PM

Try a clay bar. It is easy to use and will make the finish look great, without wet sanding.

http://www.mothers.com/02_products/07240.html

the clay bar will get rid if the etching

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