Removing oxidation or scratches from vehicle headlights or brake lights (also polycarbonate) also removes the OEM ultra violet (UV-B) protection. Surfaces that have yellowed are a sign that the ultra violet (UV) sacrificial coating has failed and must be resurfaced and re-coated
Application Methodology
• Use a solvent type cleaner (Klasse or Zaino All-In-One) if this does not remove the oxidation use a plastic polish
• Meguiar’s PlastX contains a microscopic diminishing abrasive, which requires a little pressure when applying it to enable these abrasives to remove the discoloured plastic and expose new plastic.
• If the lens is severely hazed or scratched wet-sand with 1000–1500-2000 grit finishing paper, allow finishing paper to soak for 30 minutes + and use plenty of surface lubrication
• Tape-off all around the lenses so that you don't accidentally wet sand or buff the surrounding areas.
• Using a random orbital buffer with a 3.5-inch backing plate and a 4-inch (Lake County (LC) White) polishing pad or a terry cloth applicator
• Place a small dab (about ½-inch diameter) of plastic polish on the foam pad or applicator.
• Place the pad on the lens surface and turn on the machine (speed #4)
• Polish the lens repeatedly in a left-to-right and an up and down pattern.
• Continue polishing until all the polish is gone
• Wipe the lens with a damp Microfiber towel
• Inspect the lens, repeat the polishing process 2-3 times as necessary
• Finally wipe down the headlight surfaces with isopropyl alcohol (IPA) or a tack rag to eliminate any residue.
• Plastic polish will not remove clarity defects that are within the plastic but it will remove external/surface scratching and ultra violet (UV) oxidation (yellowing) as well as OEM applied UV protection that should be replaced
Application Methodology
• Use a solvent type cleaner (Klasse or Zaino All-In-One) if this does not remove the oxidation use a plastic polish
• Meguiar’s PlastX contains a microscopic diminishing abrasive, which requires a little pressure when applying it to enable these abrasives to remove the discoloured plastic and expose new plastic.
• If the lens is severely hazed or scratched wet-sand with 1000–1500-2000 grit finishing paper, allow finishing paper to soak for 30 minutes + and use plenty of surface lubrication
• Tape-off all around the lenses so that you don't accidentally wet sand or buff the surrounding areas.
• Using a random orbital buffer with a 3.5-inch backing plate and a 4-inch (Lake County (LC) White) polishing pad or a terry cloth applicator
• Place a small dab (about ½-inch diameter) of plastic polish on the foam pad or applicator.
• Place the pad on the lens surface and turn on the machine (speed #4)
• Polish the lens repeatedly in a left-to-right and an up and down pattern.
• Continue polishing until all the polish is gone
• Wipe the lens with a damp Microfiber towel
• Inspect the lens, repeat the polishing process 2-3 times as necessary
• Finally wipe down the headlight surfaces with isopropyl alcohol (IPA) or a tack rag to eliminate any residue.
• Plastic polish will not remove clarity defects that are within the plastic but it will remove external/surface scratching and ultra violet (UV) oxidation (yellowing) as well as OEM applied UV protection that should be replaced
~ Providing unbiased advice that Professional and Enthusiast Detailer’s Trust ~-
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