Bad water spots need your help guys!!!

[Raymond]

Re: Bad water spots need your help guys!!!

Holy **** that half and half shot is crazy man, nice work!!!

[Mike Phillips]

Re: Bad water spots need your help guys!!!

Thanks for taking the time to document your results by doing a side-by-side, before & after. We know it's easier to skip the taping off and taking of pictures and just get the job done, so thank you for taking the time to document during the process and then later to upload the pictures and update the thread.

I do have a question though. You said that the paint cleaners i was using dint have enough bite, are saying #4 has more of a bite than #85?

It has a different type of bite.

Feel the M85 and the M80 and any product for that matter between your fingers and see what you feel. There are all kinds of different types of diminishing abrasives and the type used in the M04 is chunky enough that when rubbed by hand or machine over glass will cut through the built up gunk and remove it without scratching the glass. The other products don't offer this characteristic.

How these product work on paint is a different story, remember there are all kinds of factors involved in how a product works on the surface it was intended to be used on. None of our paint care product were ever formulated to be used on glass. We found ourselves personally stuck between a rock and a hard place when detailing cars for customers and more or less stumbled upon the #4 for glass out of simple experimentation because we had a need to remove water spots and we had #4 in our arsenal of products. How's that old saying go...

"Necessity is the mother of invention"

M04 is not the perfect product for removing water spots off glass, but as we've posted in the past, when we detailed cars in Oregon and Washington we ran into a lot of water spot problems on the paint and the glass of the cars we detailed and what we found out is you can't detail a car for a customer and make their paint all clean and shiny and give the car back to them with the water spots still on the glass.

Since we always had a complete arsenal of Meguiar's with us when detailing cars we found the physical type of diminishing abrasive used in the #4 and the #49 was chunky enough to cut into the built up gunk on the windows and cut it off without scratching the glass.

Spray on glass cleaners won't work because of the extreme degree the spots have built-up on the glass. The spots are usually some kind of mineral deposit that was in the water but also appears to be more than that, likely a combination of road grime, dirt, pollution fallout, etc.

Whatever it is that we generically refer to as spots, it requires more than a spray on glass cleaner, it requires something with an abrasive bite to it, but not so abrasive it will scratch the glass.

Anyway, were' glad this worked out for you and again, thank you for documenting it. Also, we've had good work with our W-7006 foam cutting pad like you experienced, but recommended wool as usually, not always but usually the fibers of a wool cutting pad are a abrasive cutter just by themselves, so in most cases they would provide more cut than the cutting foam of a foam cutting pad. But like we always type on this forum...

"You don't know what you can do until you try"

Plus the small size of the W-7006 foam cutting pad works well for the small size of most car windows, you just want to make sure you don't bump the edge of any pad into the rubber/felt trim around the window and either burn this trim or stain it, thus the reason we recommend taping these areas off. Like this,

How to tape-off a car


Before



After




Here you can see we have taped-off the gasket and trim around the window and also a sticker in the lower right hand corner to protect it from splatter that would later need to be removed. (Just an extra safety precaution)



Note the area around the windows has been thoroughly taped off as we machine buffed the glass as a part of the half & half, before & after detail we did for the 2002 Bimmerfest.

Again, thank you for documenting and updating your thread for the enjoyment and learning experience of everyone that will read this into the future.

[Mike Phillips]

Re: Bad water spots need your help guys!!!

Moving to "Hot Topics"

[Derrick]

Re: Bad water spots need your help guys!!!

Yes i noticed a huge difference in the feel from #4 and the other cutting products i have. It felt like sand in it. Ok well thank you guys again and thank you mike for the detailed analysis on the different products. Do you think meguiars will be making something specifically for hard water spots like these on glass? I think they should

[WrightDetail]

Re: Bad water spots need your help guys!!!

Agree would be nice market for those areas with hard water ( midwest )