YEAR-LONG PROTECTION: The revolutionary headlight coating in this car care kit helps your car shine brighter, longer by protecting against yellowing and re-oxidation for up to 12 months of better working, better looking headlights.

Actually works really well! So easy to use, its almost impossible to screw it up. Put some tape around the headlight, scrub back and forth in same direction for a few minutes making sure to get all of the surface, wipe of really well, clean surface with Windex, let dry, then spray with finishing spray, its that easy!

• 1 3M Headlight Restoration Kit – Best Overall.
• 2 SYLVANIA Headlight Restoration Kit – Great UV Block Clear Coat.
• 3 Mothers Headlight Renewal Kit – Good Value.
• 4 Turtle Wax Headlight Restorer Kit – Also Try.

And some automotive masking tape to protect your car's painted surfaces. Once you've taped off the perimeter finished surfaces. And scrubbed the headlight with soap.

I get about 6-8 weeks out of a dry application in the summer, maybe 3-4 weeks in the winter now when the roads are a lot dirtier. Lately I have been using it as more of a drying aid each time I wash the car. Just a few quick sprays on a wet car before I dry it off and I'm fine for a few weeks.

Can a headlight lens be refinished more than once? Yes, a lens can be refinished several times using the 3M Refinishing System. Most lenses are made of polycarbonate material that is 1/8” to a ¼” thick. We are only removing a small fraction, less than 1/32” in most cases, from the overall lens thickness.

Generally, the restoration will last four to six months before some discoloration returns. However, it will not be as severe and the new oxidation will easily be removed by using the Lens Clarifying Compound. 4.

On an average it will take about 15-20 minutes per headlight. Headlights that are larger or that are harder to sand will require more time and can take from 30-40 minutes per lens. Smaller lenses may only take about 10 minutes per lens.

New bulbs might restore some headlight brightness, bulbs can dim with age as well. But clouded lenses that aren't restored will continue to reduce headlight effectiveness, potentially causing safety issues in nighttime driving and low-visibility conditions.

What is the service life of a restored headlight? Depending on driving conditions, environmental factors, and the customer's care of their vehicle, the expected service life of a headlight restoration is at least one year and may be as long as 3 years.

We recommend applying it once or twice a year in order to maintain your finish in tip top condition.

Like most paint sealants, #21 is designed for easy application and maximum durability. You can expect months and months of protection and a lasting shine.