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Old 11-13-05, 10:05   #1 (permalink)
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Etched in water spots, a job for a rotary?

I got some nasty water spots on my hood that have etched their way into the clearcoat. I went over them a couple times with #83 and a yellow Meg's polishing pad with a PC but it didn't even put a dent in these things. Am I not working the product enough (I'm pretty new to #83), should I do a few more passes? Or am I wasting my time using a PC and this is a job for a rotary? I think I'm going to go experiment with Menzerna IP with a yellow polishing pad and see if that does anything. Any help is appreciated.
 
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Old 11-13-05, 10:24   #2 (permalink)
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You probably need a cutting pad to even put a dent in waterspots. It'll depend on the severity of the spots, so pics would be very helpful.
 
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Old 11-13-05, 02:37   #3 (permalink)
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Water spots can be tough, especially if they have etched the clear. May even need to be wetsanded. I think at the minimum, they will need to be polished with a rotary.
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Old 11-13-05, 03:02   #4 (permalink)
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#83 may not be suitable for water spotting.

i'd try a rubbing compound.....3M RC 111 will prolly work..

try by hand with terry cloth, on the isolated spots, as opposed to a whole section of the hood??!
 
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Old 11-13-05, 03:28   #5 (permalink)
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Again, always...always try and first DISSOLVE water spots before trying to ABRADE them away with a rotary and compounds.

Try ValuGards ABC system first in the future.

Anthony
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Old 11-17-05, 07:29   #6 (permalink)
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Two words of advice... be careful.

Water spots are one area that make me REALLY nervous. They can absolutely murder a paint job, but if you go too far in trying to remove them, you could be looking at a new paint job anyways.

Case in point... I had a gorgeous '96 Thunderbird Sport in Moonlight Blue, which I bought new (at night- never again). The next day, I noticed the hood & roof were heavily water spotted. Took it to the dealership & they said the pits were too deep to polish out. On further inspection, they added that the pits were a little too deep for color sanding to be a viable option. They said the only solution was to repaint the car. I was understandably nervous about this prospect, but checked the quality of some of their work in the lot & checked out the paint booth, so let them do it. Was a lot of orange peel at first, but their detailer knew what he was doing & managed to smooth it out without inducing swirls or buffer trails. It actually came out really nice. Unfortunately, the car got broken into at the dealership the night before I was to pick it up, so more paint & bodywork was to follow. Seems someone (at the dealership, I think) was rather fond of the $2k in electronics I had installed 2 weeks earlier.

To this day, I'm not sure if the dealership sold me a bill of goods on the car needing to be re-painted instead of color sanding. They may have just wanted a fat check from Ford... and I bought into it. Was a valuable lesson. Nowadays, I'd do some serious checking into the thickness of the clear coat (& maybe investing in a thickness gauge) before I did anything. And of course, I haven't lived anywhere since that did NOT have a garage. And of course, NEVER park were water from sprinkler heads can get anywhere NEAR my paint. Best of luck tho...
 
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Old 11-17-05, 08:07   #7 (permalink)
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Here is what I had to go thru to get water spots out of a BMW:

http://autopia.org/forum/showthread....&highlight=BMW

Hope to get the hood done this sunday...
 
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