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Water Spots


wbrian63

Question

I have an '02 MB S55, black in color. Previous owners apparently either washed the car with very hard water and allowed it to sit, or I've got some serious acid rain etching in the paint. When I got it last Oct, it also showed signs of being machine washed at one of those places that uses the long hanging strap brushes, or worse, the rotating bottle brush, as there were lots of linear scratches from nose to tail.

 

Here's my equipment list, so you know what I've got to work with - can add to this collection if needed:

  • Flex xc 3401 polisher
  • Full set of Adam's pads - pink, white and grey (just ordered the more aggressive yellow one)
  • Detail spray - Meguiar's brand, I think, plus I just ordered some Adam's product.
  • Full set of Adam's polishes - Swirl & Haze Remover, Fine Polish and Machine Wax.
  • Adam's Claybar
  • Adam's MF Towels

Here's what I've done, and I need suggestions on what to do next:

 

I've made multiple attempts with the Swirl & Haze Remover using the proper pad, along with the Fine Polish. The finish on the car is baby's-backside smooth, and I don't see any of the fine scratches that were there when I bought the car.

Of course, I've clayed to within an inch of my life and patience.

 

I still see lots of little circles in the paint - like hard-water stains. They're only visible, not "touchable" (can't feel them.)

 

One thing I think is a "problem" is that the Flex polisher is a gear-driven unit, so there's no way to stall the pad with extra pressure. The problem with this setup is that with all of the polishes/waxes, I have to be very careful not to overheat the pad and cause the product to dry under application. I use the detail spray liberally, but I'm not sure if this is enough. It is variable speed, and I'm running it fairly slow - running it faster just seems to dry the polishes faster.

 

From my point of view, in order for any sort of machine polish to "do its job", it must be mechanically passed over the paint surface enough times to allow the abrasives to remove what they're supposed to remove. Here in Houston, when the weather is nice enough to wash the car, that means it's almost always hot, which makes the "drying too quickly" problem even more prevalent.

 

I do all my car washing inside the garage. Ambient temps can run anywhere from 85-105f. (I've got a new A/C unit for the garage, and plan on installing that SOON before all that's left of me is a BIG pile of dust on the floor from excessive dehydration...)

 

What can I do to get rid of these spots/rings?

 

Since I don't see any more haze and the linear fine scratches are gone, should I just forego the swirl & haze remover and move on to the polish (BTW which is more aggressive?)

 

Should I "double-up" on the detail spray?

 

While I said I would purchase additional tools, I'm not really interested in purchasing the PC polisher - I think a technique can be implemented to get the Flex polisher to work...

 

Inputs and opinions are appreciated...

 

Regards

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9 answers to this question

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First :welcomebanner: Brian!

 

The water spots get etched into the paint,I have taken some out with the yellow pad & SHR and PC. But most of the time they have to be wet sanded out by a pro, if they are not too deep.

And as far as the Flex it is a serious machine and if not careful you can burn your paint.The PC is much safer!:pc:

Get you some Adam's DS!!:jester:

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Chris - thanks for the quick reply.

 

I guess I'll see how much progress I can make with the yellow pad when it arrives.

 

Question - what is the more aggressive media, the Swirl & Haze or the Fine Machine Polish?

 

I'm aware that the Flex is / can be aggressive in the wrong hands. I purchased it on the recommendation of someone on an MB-specific forum, and they used Adam's products exclusively - which is how I wound up here...

 

The car looks far better than it did at delivery last October, but it could look SO much better...

 

Thanks in advance for the answer to the above question.

 

Regards

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The Swirl and Haze Remover is more aggressive. This is the one you will use for removing swirls and other issues in the clear coat. The Fine Machine Polish is what you use after using SHR - think of it as creating the final shine, rather than a swirl remover (although it may remove some very light swirls).

 

With the Adams products, the pad plays a significant part in 'doing the work'. I will encourage you to not use too much product (my original mistake), as if you clog up the pad, it works more slowly.

 

If you can take some Flash pictures of the finish of the offending areas and post them here, the experts here can give you some more detailed guidance. Again, please be careful with the Flex, as it is not as friendly as the Porter Cable 7424.

 

Post those pix, and then you can get some expert advice.

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Chris - thanks for the quick reply.

 

I guess I'll see how much progress I can make with the yellow pad when it arrives.

 

Question - what is the more aggressive media, the Swirl & Haze or the Fine Machine Polish?

 

I'm aware that the Flex is / can be aggressive in the wrong hands. I purchased it on the recommendation of someone on an MB-specific forum, and they used Adam's products exclusively - which is how I wound up here...

 

The car looks far better than it did at delivery last October, but it could look SO much better...

 

Thanks in advance for the answer to the above question.

 

Regards

You are more than Welcome Brian!

SHR with the Yellow pad is the most aggressive combo in the Adam's line!!:thumbsup:

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oh boy...i just went thru this. hard water with the sun on it can etch thru any clear coat as well as paint. I had hard water spots (called type II) etch thru polish,wax and 2 clear coats. What a sad leopard spotted new 370Z i had instead of black cherry. i had to get an acidic water spot remover done by a pro first. i dont think the polish alone will do it.

People told me to use vinegar but that did not work. the spots are all off now and i invested in a water softener system for my hose. you can pm me if you have more ques about the process i ended up doing...best of luck-persistance is key!:pc:

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i do alot of black mbz that are washed with well water giving the same result. since mb uses scratch resistant clear it may be necassary to at minimum have someone who is good with a rotary to go over the car. i do not think even though the flex is a forced rotation da.it can be as agressive as you may need. did a blck maybach and it took 12 hours on the outside to remove spotting.good luck in your persuit of the piano finish! mike

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Polishing is all about leveling paint by removing the upper most layer until the paint looks like you want it.

 

If a certain combo does not work, you either need to change your polish, pad, or machine. The Flex is a very nice machine and I do not think you should start there. You may have to do multiple passes or upgrade your polish to a more aggressive polish.

 

There is some point where you may have to live with some like some random swirls if they are do deep. It is just worth removing that much clear coat to them out.

 

As the shine shop said, it can likely be done with time and patience.

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