Gordon Glass® Cerium 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 really works. Make a slurry and use a soft cloth. Voila!!

Sprinkled a little of the powder on a random orbit car buffer foam pad and polished for a few minutes just to test it out. My ford f350 drivers window has been scratched and hazy for years due to crappy rubber seals that hold in sand and dirt causing scratches everytime the window goes up or down. It's always annoyed me but not enough to replace the glass. I figured I'd try this and I'm amazed at the difference with very little effort. I'll try it again when I have more time but so far this is a fantastic difference.

The tires on my new Z06 Corvette are very sticky and they throw stones up like crazy. Some of these pepper the brake inlet ducts and rear fender flares. Occasionally a stone lands on the top of the car. This wouldn't be so bad except in one case recently a stone that still had fresh tar on it landed on my windshield and wound up getting lodged against my wiper blade. I didn't notice it until after I activated my wipers to clear my windshield and that stone glued on the wiper blade with tar etched a really nasty arc right on the driver's side, eye level. Several glass companies said there is nothing I could do but replace the windshield. Cost for a new 2015 Corvette windshield is $950.I saw this product on Amazon and thought I would give it a try. What did I have to lose, so I thought. I purchased the 8 oz. size package. I used a foam disk I had from a 3M headlight repair kit as the applicator, attached to a 3/8 in. variable speed drill. After watching a few videos on the process I gave it a try. As the videos and other reviews state, this is a messy process. I wound up draping a couple of bed sheets over the engine compartment and top of the car. I marked the inside of the windshield with painters tape where the scratch was located to serve as a reference point. After running the CO product up and down the affected area at medium speed and pressure for around 20 minutes I decided to have a look at the glass to see if I was getting anywhere. To my dismay there was no noticeable improvement.I then mixed up another batch and changed my approach a bit. This time I held the pad in one area for several minutes and moved it along the scratch at a very, very slow rate. When the pad seemed to be getting a bit dry, I hit it with the squirter bottle that was filled with water. I repeated this process going super slow up and down the work area for the next hour or so. Then I expanded my work area to approximately 6 inches on either side of the scratch to blend the polishing area to a broader area. I cleaned off the windshield with paper towel to see if things were improving. This method was the answer. I was very pleased to see only a very faint line remaining. I hit this for another 20 minutes or so as described above and I now have an absolutely perfect windshield where the scratch was. Needless to say I am delighted that this 8 oz. package saved me from having to replace my windshield!I had my doubts about this product after the first application but, as my title states, Patience Iago! Remember we are polishing glass. This is hard stuff and it takes a long time to get any positive results. But, providing the defect is not too deep, you can use this product to save your windshield.Good luck!

Have to rub the powder hard to remove small scratches.

I love this stuff! I made a paste with some water and used buffer pads made specifically for ceramic oxide and - wow! I hand buffed the glass for a few minutes and the difference is amazing. I also used it/buffed by hand on the very cloudy headlights of my 2002 Toyota- also wow (I forgot to take pictures of that).

I was skeptical about this stuff and figured I'd give it a try.I practiced on a glass jar and this stuff changed nothing. I have one fairly light windshield wiper streak but it looks like I'm going to just have to get used to it. I certainly don't want to make it worse. Win some, lose some.

Excelente calidad