[cctmobiledetail]

if the lenses are really yellow and oxidized, then here's a sure fire way to restore the lenses.

Materials needed: WD 40 / machine oil
Sand Paper ( 400, 800, 1000, 1500, 2000 grits )
Sanding Block
Clear plastic paint
Masking Tape / paper

1. Start by masking off the hood, grill , bumper, etc. with masking paper or newspaper and try to only expose the headlight lenses.

2. Spray WD 40 or use pour on machine oil and coat the lenses one at a time. Basically you are going to wetsand your lenses, but not with water, with oil instead. You'll need to keep applying the oil frequently to keep the lense wet.

3. Sanding to remove old yellow dead plastic ; Wrap 400 grit paper on sanding block , recoat the lense with oil, and sand ONLY in a horizontal motion, when paper is done , use more paper as needed, and keep reoiling the plastic lense. Sand the plastic lense until all the major yellow bad , dead plastic is off.

4. Sanding to remove coarse scratches of the plastic lense; After all the dead plastic is removed by using the above process, then you'll need to refine the plastic down to a paintable state. Sand next with 800, remembering to oil between each sanding run. Move on to 1000, then 1500, then 2000. Once 2000 has be run wipe the lense of to see your progress, if scratches are still present, then go with 2500 grit and up to 3,000 max.

5. Resealing the lense; use either a spray or brush on clear plastic sealer. If using brush on , make sure you use a foam brush and don't overlap strokes. paint in horizontal strokes ONLY. If spraying make sure entire hood, etc. is masked off. Apply one coat and let dry ( read the clear can how long ) reapply a second coat , let dry ....and your done.

Both lenses complete job should take 2 hours or less, less drying time.