Seemed to work - not sure how or why

[imported_mosborn9]

In late December of last year my wife purchased a dark slate metallic Nissan. Although when we purchased the car I did not see a blemish in the hood it was certainely there when I sealed the car in January. It looked to me like a waterspot or a bird bomb had etched the clear coat. Prior to sealing the car I tried Megs Ultimate Compound on the area and it did nothing. This area bothered me every time I cleaned her car but I really just did not know how to deal with. Since I've never wet sanded anything, trying something like that on this car was not an option.



Well weekend before last, prior to using the BF Gloss Polish and WD I decided to try one more time to deal with this area. I thought I recalled reading on this forum about using distilled vingear to deal with etching in the clear coat. So I thought what the heck, what could it hurt. I grabbed the distilled vingear and soaked a mf and then dabbed it on the area. I then just blotted it and left it alone to dwell on the spot (I did not let it dry). After the first application it really seemed to help. I repeated the process and it seemed to be 90% better. After applying the Gloss Polish (which I know will concel minor defects), you could not tell it was ever there.



So this seemed to work although I have no clue why.

 

[gigondaz]

That spot could most probably be a deeply ingrained water-mark/spot/acid rain etching mark.

These are mostly minerals, especially calcium.

White vinegar, chemically, can remove lots of these mineral deposits....to a certain extent. Works great on glass too, if the marks hv not etched in too deeply. Glad you managed to get rid of that mark.