There are many methods for polishing and restoring clouded, discolored headlights. My question is: once headlights have been polished and appear quite clear what sort of treatment effectively preserves their clarity?
There are numerous headlight restoration sealant products out there. Are they effective? Some restoration kits contain a sealant and others do not. I have read various anecdotal accounts suggesting they are ineffectual. Wax is occasionally mentioned as the only necessary "sealant"/protectant that is necessary for headlights.
I am not interested in any particular recommended product. If a sealant or alternative product is advised I am only wondering what characteristics a consumer should look for when making their selection.
Additional background information could be helpful as well.
- There is certainly variation in headlight plastics. Perhaps a single treatment is not universally appropriate.
- Information about the finish of headlight surfaces by original manufacturers. Raw polished surface or additional treatment?