Clearing a foggy headlight with acetone vapor - GIF

[suther51]

I have an old electric small "hot plate" ment to keep a coffee cup, ect, warm. Seems like it might be a good heat source. No ignition source and relatively low heat. Looks like I've got a project. Our cars headlights are dim and the plastic is yellowing. Seems like a good approach by its self or at least a time saver before mechanical polishing.

As a side note, looked into brighter bulbs for the car. Found a strange thing. Some bulbs were 2xs as expensive with a shorter expected lifespan at the same lumens as the cheapest bulbs with longer lifespan. Perhaps the expensive bulbs are a more effective color temperature. Otherwise seems just bragging rights to have spent twice as much on an inferior product.
Eric

[bob_3000]

Seems like a good approach by its self or at least a time saver before mechanical polishing.

You still have to do the mechanical polishing, the acetone treatment is only the finishing step.