I love the stuff. I did post on the fest ab doing this on my E39- about ~5 years ago- LOL.

No swirls at all. The idea behind the glass polish is that it is free of silicates. It also evaporates/dries very quickly. It's easy to remove, but the residue is hell on the seals- thus the tape.

I apply with an RO and an orange/polishing pad. I have had a Flex for a number of years, but a PC would also work. I have not ever seen swirling on glass, but I suppose with a very dirty pad- an an ill-placed pebble/sand- it is possible.

I clean the glass beforehand just to be certain it is free of large debris that might get into the pad. I usually use a pad that I have used on my paint a few times. This is the pad equivalent to Weekend Update for SNL characters. Once it's used for glass, I throw it away.

I find the results amazing. But then, I pay attention to this kind of thing. The front windscreen is so clean and fresh that I swear I can see more clearly. The same is true with the rear- even through the rear view mirror. With the sunroof glass exposed, I see no more little etches from the water spots. It just *feels* better inside looking out.

From the outside looking in, the effect is similar to seeing a car with paint that's been well cared for and polished regularly. The glass seems to 'glow' with brighter reflections. It just LOOKS clean. People who don't know will likely wonder why the car looks so clean even with a little dirt on the paint- it's hard to figure out if you're the type that doesn't keep a clean ride.

It probably took me as long to tape the car as it did to apply and remove the polish. I did the job with a rainy day car wash in about 3 hours. I am old and out of shape, so the hardest thing for me was up and down the folding platform I use to gain access to the roof and windshield. The first few passes with the Flex polisher got nothing through the water spots, but as the polish begins to work into the glass, and as the speed of the polisher amps up, you can see the spots clear through the polish. I'm (just a bit) obsessive, so I am sure I ran more times than was needed. I figure I'm there, I may as well be double sure it's getting clean.

One thing that I learned through the years of doing this is that you should consider this one of the first steps in your detailing routine. It's counter intuitive bc we're used to cleaning windows at the end of our wash time. The residue is a b!tch. If you're new with the runny polish, it will sling into little clear coat/paint-unfriendly spots- get them off. That's why I wash it after.

I am looking to this weekend to run some polish through the paint and to seal with my long standing favorite- Zaino. It should really wake up the car if both the glass and the paint are looking great.

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