At a recent biking event, I noticed that my visor was at the point where I literally could not see anything. I decided to clean it, but for those of you who don't know how, I decided to do a thorough clean with Meguiar's Scratch X. The product is available at Autobarn, last time I checked anyway. The process is quite simple but does take a bit of patience. This picture shows the scum that was built up on the visor. I had already cleaned a section in the middle of the visor, but this shows the scum a bit better I think. The product. Meguiar's Scratch X and a microfibre cloth. I prefer to use the microfibre over a standard cloth because it is softer and produces a better result. Applying the Scratch X. As you may see, it should be applied in a circular motion. Keep rubbing the product into the visor, until it is almost clear, then wipe it away with a clean cloth. The finished product. Alot better than when I started, and I can actually see again. It still has a few marks on it but I didn't want to go further (lazy) Meguiar's Scratch X is supposed to be for the removal of slight swirl marks, but I find it works quite well if you keep applying it. If there are deeper scratches, or marks that don't want to come out, then it would be more advisable to buy a new visor. And NO, I don't work for Meguiar's.