The quality plastic of the SVX headlights is prone to fading whatever you do.
Now I have the "German" glass headlights, but if I were to stick with the plastic ones I would do this:
1- Make one pass with a 800 sand paper;
2- Spray 5~6 layers of clearcoat;
3- Let them bake in the sun for few days;
4- Use a 1500 sand paper to get rid of impurities;
5- Leave in the sun for another day;
6- Polish.
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Danny
1994 Silver SVX in hybernation, awaiting for the
monsterous awakening (Lebanon)
1967 Mercedes-Benz 250SL Euro Specs, Hard/Softtop, White/Red. Under Complete Restoration
2013 Mercedes-Benz SL350 Euro Specs, White/Red. Mint... Another step into SL Collection.