Novus Pc-30 Plastic Heavy Scratch Remover - 8 Oz.

Good product

it doesn't do the job it claims to do. i tried few times as per the instruction but has done nothing to the scratches in my plastic surface, small to medium depth scratches though

Great scratch removal but not for deep scratches on glass but it helps somewhat.

Easy to use and an effective quick way of removing a scratch. You will need to use the grade 2 polish after using the grade 3, to take away the rub marks and polish up the polycarbonate.

I have used this product hundreds of times with excellent results. I think the negative reviews come mostly from people who don't understand the principles of polishing, which are a little more complicated than you might think: 01. In general, you don't buy a polishing compound, you buy a polishing system. Manufacturers, like Novus, make sets of abrasive products that usually go from coarse to medium to fine. In some product lines there are extra coarse and extra fine abrasives. Once in a while you can buy a singe product that does the job, but in most cases it's better to purchase a set (system) of abrasive products in the same product line and learn how they work. That's why this product has a #3 on it. 02. The polishing system that you buy has to be appropriate for the material you want to polish. The Novus system is designed for specific types of plastic. You have to find out exactly what material you have and buy the abrasives that are designed for it. 03.Once you have the right set of products, you start with the product that will remove the deepest scratch. If you have a 1/8" deep scratch in wood, you can't start with 400 grit sandpaper. You'll just end up with a highly polished scratch. In that case you would start with maybe an 80 grit, and then go to 120, 220, 400, and 600 for a really smooth finish. That holds true for every material you will ever polish. The material and polishing products will be different, but the process is always the same. 04. Not all scratches can or should be removed. When you want to remove a scratch, you have to look at how deep it is and think whether you can afford to remove enough surrounding material to get rid of it. Deep scratches (deep enough to feel with your fingernail) in CDs and DVDs usually can't be removed because you'd have to remove so much surrounding material that you would cut through to the data layer. A really deep scratch in an aquarium probably *could* be removed, but you are either going to have to live with a visible "dent" in the surface (the surrounding plastic that you removed) or you have to sand down the entire sheet, which can take quite a bit of time.

Does what it needs to do, within reason. But you really need the full set of 3 to polish out the scuffs left by this product.

I ordered this along with Novus 1 & 2 (all 3 parts are needed) as a last ditch effort to get the scratches out of our acrylic coated fiberglass tub. Started with Novus 3 and within 5 minutes of heavy scrubbing I noticed the scratches being removed. After using Novus 2 for the fine scratches the reflective surface started to show again. Novus 1 is a good polisher/protectant to use before and after parts 2 & 3. Don't expect this to be easy if the damage is significant. It takes a lot of elbow grease and patience to see the results, but there is not much else out there that is safe and readily available for such tasks. I spent about 1.5 hours on a 4sq ft area and it does look brand new now. Much cheaper than having it refinished in this case. To sum it up it is a tremendous product and I enthusiastically recommend it if you have patience and realize not everything can have instantaneous results with minimal effort.