How To RESTORE your Headlights the PROPER way!

[DBAILEY]

The SiO2 coatings don't last as long as applying a new UV coating like the factory coating. They smell like they are urethane based loaded and with UVA/UVB. There are wipe on ones too. You don't have to spray them on. I apply them after a compounding step that followed what ever sanding was needed. The hazing from compounding seems to be enough for the UV coating to adhere to. I do not use a fine polish to finish to a high gloss.

[Desertnate]

I’ve been using Meguires Headlight Coating and it is supposed to last a year. How long does Opti-lens last? Or McKees? Is there something in a spray can that lasts longer that anyone knows about?

On my daughter's Mazda, the Meguiars coating lasted about 4~5 months before the lenses started to yellow again. I've used the Wolfgang headlight kit and the sealant provided in that kit lasted 6~7 months.