When vehicle manufacturers changed over from glass headlights which were often just large bulbs held in a bezel back in the 80’s it gave them the opportunity to introduce a variety of different tear drop shapes that better matched the low drag coefficient shapes on front bumpers.
Unfortunately the new acrylics that are used in the manufacture of these headlight housings do not hold up to heavy abuse and elements.
The first solution was to coat the housing or protect it with a film. This caused headaches for owners and restoration shops because the film on the …