Gordon GlassCerium Oxide High Grade Polishing Powder - 8 Oz

I purchased a well-used '99 Chevy C2500 pickup for the right price, and it included the (then) 23-year-oldoriginal windshield. And just like always, the fine semi-circle scratches from years of windshield wiper use made it difficult to safely see out during early morning and later evening driving into the sun.In the first photo I was able to capture the condition of the original windshield before I started.In the second photo I tried to capture the improvement, but if anything it looks even better than the photo shows. (Especially if the driver wears polarized sunglasses, which help to eliminate the reflection of the dashboard.) The results exceeded my expectations!In the third photo you can see that the windshield does look polished -- it simply looks new. As a matter of fact, without the fine scratches the Rain-x works better than ever. Best visibility I've enjoyed in any 20+ year old chore truck to date!In the last photo I am showing the very first vehicle I polished a windshield - it's my '02 CR-V daily driver that had the same fine windshield wiper scratches. (There was a bad spot where the travel of the left & right wipers overlapped just to the right of the driver.) Important Note: Although I was able to polish out the scratches using a small, hard wool pad chucked to the drill, it was much more work than it needed to be. On the truck I switched to a variable speed polisher (Makita 9227C or equivalent) and this is *much* easier. (Plan a full afternoon for an older windshield; polishing glass is a much slower proposition thanit is for a similar square footage of automotive paint. (!)Disclaimers:1) The rule of thumb about not being able to fully remove scratches deep enough to catch your fingernail is true. Even so, by rounding off the sharp edges, this polish will take the 'glint' away when the sun hitsthe scratch, and in many cases this can move a scratch from 'unacceptable' to 'good enough'. (The previous owner had allowed something to hang down from the roof rack and deeply scratch the rearglass, and was distracting in the rear view mirror. By working the rear glass I was able to make this defect much less noticeable...to the point where I'm more than OK with the results.2) When reading through the reviews someone pointed out (correctly) that deep pitting won't be removed. By the same token, a whole lot of minor pitting *was* removed. If you look closely at thesecond photo you will see some of the deeper pitting remaining. IF this polishing compound was justas expensive as a brand new windshield, then I would have been disappointed by this.Instead, this polish is an absolute bargain, especially when it allows you to improve the driver's Situational Awareness for literally pennies on the dollar when compared to having the windshield replaced.And it makes your older vehicle look much newer/cared for. A win/win in my book.I've been wet-sanding/polishing paint for almost 50 years, and this cerium oxide is the first stuff I've found that actually works. For me, the results are well worth the time, effort, and price of admission.Hope this helps others out there who are driving older vehicles and need to improve the view --

This stuff works. There's enough in this 8oz bag to do half a dozen windshields. I removed very bad windshield wiper scratches from a Volvo S40 windshield that had 200k miles on the clock. The scratches were so bad that it was dangerous driving with the sun in front of you.Mask off most of the car with bed sheets, garbage bags, newspaper, whatever. I used a corded drill along with the "frequently bought together" white pads and hook and loop drill attachment. It flung this everywhere on the car. Easy enough to clean off though.I did the windshield in halves, right and left. Have a spray bottle handy with water to mist the windshield. Do this in a garage or in the shade as the paste dries quickly in the sun. Expect to spend 40 minutes per half. This stuff dries out your hands like concrete or mortar mix, so wear gloves if you're sensitive to that. It is also an EXTREMELY fine powder that you probably shouldn't inhale. Keep it wet or wear a mask.I mixed a tablespoon or so of the powder in a cup with just enough water to make a runny paste. I poured the paste on the windshield and spread it with my hand to evenly cover the half I was working. I worked the drill up and down slowly across the entire half i was working. Then I worked left and right across the entire half. Then up and down, right and left, etc... You get the idea. Keep misting as necessary and keep it up for at least 30 minutes. Repeat on the other half.In the end, I had ZERO scratches remaining and the occasional pit in the windshield was the only reminder that it had 200k miles on it.

I bought this in Hope's to remove the scratches I put in my shower stall glass trying to remove the bad water spots that nothing I've tried works on. Well it does not remove even very minor scuffs you cant feel at all so it's not good for any glass scratch removal but I did end up finding out that it works on getting the spots off glass which is great since I couldnt ever get them off with anything. It worked so good on the spots my brother had me try it on his spotted tinted windows on his vehicle that he couldnt remove and it worked beautifully. That's what this product should be sold for since it works so good. I would recommend it to anyone needing to remove impossible water spots on glass.