Headlight Restoration Kit
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Tape first. Two strips of painter's tape around each lens, covering the paint and the trim that touch it, before anything abrasive comes out of the bottle. Restoration polish does not know where the lens stops, and a haze rubbed into the paint above a headlight is a worse problem than the yellow you started with. That done, this kit is a clean, a polish and a pad, and a pair of lenses takes about an hour.
Yellow lives inside the plastic
Modern lenses are polycarbonate with a thin factory hard coat sprayed over the outside. Sun breaks that coat down from the top, it goes chalky and micro cracked, and the plastic underneath starts to oxidize. So the color is not dirt sitting on the surface, which is why washing does nothing and why a rag with toothpaste on it is a story rather than a method. You are removing a failed layer and then putting something back over the fresh plastic. Everything else we carry for lenses and glass is in the Wash Bay, and the kits are listed on the bundle guides hub.
What actually does the work
Tru Vue comes first and it is the least interesting part, which is exactly why people skip it. P&S states that it removes road film, smoke and dirt, and a lens carries all three plus a summer of bugs. Any grit left on the surface when you start polishing becomes an abrasive you did not choose. Spray it on a towel, wipe the lens and the surrounding trim, then dry it before the tape goes on.
The restorer here is not the one we would have picked, and you should know that before you order. Both P&S headlight products are out of stock, so the kit carries the 3D GLW Headlight Restore in their place, in the eight ounce bottle. 3D says it removes heavy oxidation, yellowing, haze, fogginess and surface scratches without the need for heavy tools or equipment. The maker also says it carries ultra UV blocking technology to help protect the lens from the sun rays that caused the discoloration. That second claim is the reason it goes on last, though 3D states the technology helps protect the lens rather than stopping the process for good. Surface compatibility beyond the lens itself is not stated by the maker, so keep it inside the tape.
The black foam pad is there because a folded towel cannot hold even pressure on a curved lens. 3D puts black at the end of its pad system and calls the face a super soft plush foam, rated for little to no cut depending on the product and the paint. On a lens, that lack of bite is exactly the reason it is here. The pad spreads your hand pressure across the whole face instead of concentrating it wherever your knuckles happen to be. Work it by hand or put it on a machine if you own one. Either way, the pad is what keeps the lens evenly clear instead of clear in the middle and cloudy at the edges.
What this will not fix
Condensation inside the lens is not a polishing problem. If there is water sitting in the bottom of the housing or fogging on the inner surface, the seal has failed and no amount of work on the outside will reach it. Deep crazing is the other limit. Once the plastic has cracked in a fine network you can see from a yard away, this will improve it without making it look new, and heavier restoration means wet sanding through grades before you polish. No tape is included, because a roll from the hardware store costs less than shipping one, and no machine is in here either. Lenses, glass and the pads that go with them sit together on Explore.
One lens at a time
Do them one after the other rather than both at once, and keep the untouched one beside you as a reference. Without it you lose track of how far you have come and stop too early.
- Wash the front of the car, then clean the lens with Tru Vue and dry it.
- Tape the paint and trim on every side of the lens, overlapping the edges.
- Dab the restorer onto the dry pad, not onto the lens.
- Work in firm overlapping passes, side to side first and then up and down, and keep going for longer than feels reasonable, since the yellow comes off gradually rather than all at once.
- Wipe the residue with a clean towel and take the tape off while the lens is still warm from the work.
Check the result at dusk with the lights on rather than in daylight. A lens that looks acceptable in the driveway at noon can still be throwing a dim, scattered beam down the road, and that is the part that actually matters.
Against a new assembly
A pair of headlight units for most cars is the sort of quote that makes people live with the yellow for another two years. This is a bottle, a pad and an hour, and it can be repeated whenever the lens starts to dull again. Where it stops making sense is a lens that is cracked or full of water, and at that point you are buying parts. Pal Automotive items are sold and shipped by Pal Automotive through Shopify Collective, not made or shipped by Sniff and Shift.
Questions
How long does a headlight restoration last
Neither maker states a duration, so treat any number you read elsewhere with suspicion. What decides it is sun exposure and whether anything went back over the bare plastic, which is why the protection layer offered alongside this kit is worth the extra ten minutes.
Can I do this without taking the headlight out
Yes, and you should. Removing a lens means bumper clips and alignment afterwards, and the whole job is designed to happen on the car with tape doing the protecting.
Will it work on the plastic rear light covers too
The same oxidation happens on tail lamps, usually more slowly because they face away from the sun. Use less product and check the finish often, since red and amber plastic shows uneven work more readily than clear.
Related guides
Lens and window pages are grouped in the glass cluster. The only things we make ourselves are freeze dried dog treats, shipped from Pennsylvania.
