Review on 3M Automotive Headlight 🚗 Lens Restoration Kit, Model 39008 by Matt Chirila

Okay, I cheated! I have restored 3 cars with this one kit and have more material left over to make more. So I've polished plexiglass before, mainly airplanes, and I've polished plexiglass by hand for several hundred hours, so I had a slight advantage. Here's how I use these sets. First, an aggressive drive? I treat it with 220 grit DMT to knock down all the coarse sand and make it smooth. I then use a spray bottle of warm but not hot water with 2 drops of liquid dish soap, Dawn works very well. I dip the disc in a bucket of fresh water and begin removing the oxidation with a rough pad, constantly spraying the water at the light while swirling the pad around coffee-cup-sized circles. As soon as a large amount of white dirt drips from the lamp, I wipe the light and dip the pad in fresh water, and then repeat the process until the entire lens is white but has no deep scratches. Repeat the process with the next two discs. Note that if you push the pad into the lens, it will get dirty and the pad will come off! Low speeds, light pressure, water loss, NO clogging. All pads except the first pad are designed to remove the first pad's scratches, but if you don't go all the way through the milky white oxidation layer with the first pad, you won't have clear lenses when you're done. Once you get to the sponge and polish, be aware that if the polish thickens or dries out, you will burn the lens. Use as little (BB size template) polish as possible and keep the sponge moving! Don't apply pressure, let the sponge do its job. Yes, it will take time, be patient. Good luck, ask questions if you like.