– 1.7oz (50ml) Glass Polishing Cerium Oxide Compound for Professional Optical Polishing of All Glass Surfaces - 1.2 microns - GP14003

Brought this as my new car had some fairly deep scratches on the back window ,was unsure based on some reviews how well it would work , did not want to use a drill attachment so done it by hand 4 or 5 times and the scratches are 95 percent better , I will go over it again another day but what I can say is that it is really good given I done it by hand for approx q0 minutes so I should imagine a drill attachment will do an even better job . If you think you can just wipe it over and they are gone you are mistaken you will have to put in some elbow grease but the results are well worth it .great product , great price

It is quite a thick paste so getting it out of the plastic bottle is a bit tricky. On application it is effective for very fine scratches only, more of a polish than an abrasive, but works well.

I bought this in the hope of removing or at least reducing a 3 inch long scratch right in the middle of the driver's side of my windscreen. Although it is described as a polish I did not want to use anything too aggressive and risk damaging the screen surface. My hopes were 100% fulfilled. The scratch was deep enough for me to feel with a finger nail and I was only really expecting to be able to soften the edges to make it a little less obvious but it has totally gone. There is no sign of it from inside or outside the screen or any noticeable change to the surface of the screen where I polished it out. it took about 45 minutes of work. i started using a felt disc on a Dremel at the slowest speed.The speed chosen because anything faster just flicked all the compound off the wheel. This made a good job of reducing the scratch and then to finish it off I used the side of a new Dremel felt disc but rubbing it over the scratch with my finger. This enabled me to put more pressure on the scratch than I could have done with the Dremel and did not flick the compound off. I would probably have been better to do it this way from the start but either way am more than happy with the result.

I followed instructions. Rubbed for hours . Nothing changed . Scratch on glass still there . In my opinion . Doesn’t work . Waste of money

Exceeded expectations! I had used a “ non stick” washing up sponge to clean my oven door but it left scratch marks making it look very dull and cloudy. Thought i’d try this before ordering new glass panel….so glad iI did. it came up like new. I only used a microfibre cloth and water…bit if elbow grease..but really pleased.

Did absolutely nothing! Glass is glass especially a windscreen I have just came to the conclusion that the scratches will never be removed, only a new windscreen will solve that. Each to there own tho, if you have alot of time on you'ur hands and want arms the size of a body builder get this, because you will be scrubbing glass till your arm feels a pump, found it really hard to pick the tv remote up after giving it 2hours of elbow grease. Girlfriend wasn't happy as well couldn't rub her rug as normal.

Used this product to polish out numerous scratches on my windscreen, left after using a hosepipe and running water to remove bird foul. Just applied a small amount and buffed at a slow speed with a sheepskin pad attachment on a cordless drill. I would say about 75% removed after 10/15 minutes use - product is worth the money, and worked for me..

I used this with a drill with a polishing head on, it was working up to a point but I was trying to prevent damage or glass cracking due to the heat generated. I used a spray bottle of cold water to cool the glass at frequent intervals. After about an hour of this, the scratched did look to be duller but they were still there. Very messy with the product and then the water being sprayed on the glass too, meant that there was a watery, white residue all over the car so had to carefully remove it to avoid damage to the paint, do not allow this to dry, wash it off immediately after you have finished.