Yes they are all different. I look after a wide variety of cars and no two cars are a like. Not only do they have different thicknesses but they also have differences in hardness as well. Corvette's are among the hardest. I once polished two 2006 BMW 545i's, one black and the other silver. They were pretty close in thickness but the black had very soft clear and the silver one had very hard clear :confused:. It's just the way it is. Thats why it's very important to measure before doing any major correction work.

This is what im looking for! thx! its pricey so ill try different methods and will go for this one if everything else fails.

Ive actually taken a razor blade to water spots on glass.

I was just coming in to suggest that!

If those water spots are from the sprinkler recycle "waste" water then you are going to need some stuff they sell at Home Depot. It is used to remove rust water spots created by that recycle water.

I had that problem when I bought my used 350Z in Florida. They use the recycle "nasty wate" water for the sprinklers at night and it bakes into the glass. I could never remove then entirely even with that remover from Home Depot. Sorry I cannot remember the name, but is kind of acid but it works comes in an orange container.

Water spots on glass can be easily machine polished out.

a good glass polish cleaner should work, I've had success with ussing white vinegar to remove bad glass water spots. Follow up with a whipe down and apply a sealant to protect the glass surface, also helps to shed water very well and keep it spot free.

vinager and water. works like a charm

I have the same problem - I don't have a garage and just recently I realized it is from my sprinklers that go on every night.

So once this is fixed "somehow", are you guys sure a regular wax coat will make it easy to remove them each time in the future?

As for the "somehow", AutoZone mentioned using dishwasher liquid with water, I tried it in a very small area and it did seem to work. Same with vinegar I'm guessing? What else can I purchase?