Either I'm too dumb to understand how to use this product or else it just doesn't work worth a ****. Tried it on my windscreen, the visor on my helmet and even the clear plastic cover on my Otterbox No results on any of them. :dribble:
Now that you mention it... I believe the screen I had success using the Novus on was my after market CalSciThe stock Yammie windshield has a protective polycarboate(?) coating on it. I believe most plastic headlights and helmet visors have it as well. If you scratch it, it will not buff out - I've tried. Leave it alone or get another shield. I've restored my headlights to near-new by wetsanding off the coating using 1500 and 2500 grit sandpaper and then using Novus #2 polish, which is what I polish up the lids I repaint. It works nicely on paint and non-coated windshields....
For what it's worth. 2000 is not the ONLY grit you can use. For deep scratches, you can use course-er paper, say, 1000 grit. I've even used a combo of 400, 600, 1000 and then 2000, being careful to sand evenly with an open hand so as not to dig holes in the surface with my finger tips. The trick is, sand it EVENLY. You don't want "divots" in the surface because you put all your pressure over the area with the damage and ignored the surrounding area. Think of it as if it's one of those Temperpedic beds. When you press your fingers into the mattress, it leaves an indentation when you remove your hand quickly. This is what happens, on a lesser scale, to any given surface you sand if you're not careful to sand it evenly over a large area. Anyway, you can even use 3000 grit.... makes the buffing easier, but not by much. I've buffed after using 600, though it takes more work, and there will likely be real fine "sand" scratches in the surface if ya don't rub it out enough. So ya see, there's not just one way to do it, nor one product to due it with. I recommended 2000 as it takes care of most hazing, corrosion, fine scratches, as well as the coating that Gerauld spoke of, . This coating protects the plexiglass from the UV rays of the sun. These rays can make the plastic turn yellow. So beware. The coating is there for a reason. There are spray on products that will protect against UV damage once it's removed, but the ones I've seen are similar to a wax and must be reapplied every so often.Thanks for that info Gary. I've always known I could use sand paper, but I've never known how fine, and I never think to ask.
I polished the lights on my truck a while back with some liquid junk. I shoulda saved my money. I'll try them again with 2000 grit.
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