Preventing Yellow Headlights
I don't know if someone's tried this already but I"ll post it just in case....
A lot of us with plastic headlamp lenses get that yellowed look to them. You can usually see it coming as the clear layer starts to peel. I read up on how to clean them by using detergent and some 2000 grit sandpaper.
I tried something on my 93 Ford that will prevent yellowing headlight lenses. The thing is, you must do this to headlight lenses that are absolutely clear still, any yellowness will be increased by doing this.
1) Clean outer lense surface with mild detergent or windex.
2) Blow all the dust out of the inside or wash the inside clean.
3) Make sure the lense surface is absolutely clean and in as dust free are as possible.
4) With some quality spray clearcoat (or airbrush best) put an initial coat over the lenses and let dry for 10-15 minutes. Respray again, making this 2nd coat thick. A 3rd coat is optional, but anymore than 3 coats would probably cause caking and could promote the clearcoat to crack. After the 2 or 3 coats have dried they will be absolutely clear and will look like glass.
I used a high speed buffer to get them their shiniest. I live in the desert where the sun beats down hard and there is a lot of dust and bugs flying into it at high speeds and they hold up perfectly. Doing this should keep the headlights glasslike clear for years.
1987 GLS - Genesis...
1988 XR5 - Will Always Live...
1993 HO XR5i - 3rd Time's a Charm...
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