I made lense protectors for the OEM fog lights on my 2003 Sierra. They have been on for 4-5 months with no problems. I used uhmwpe and lexan to construct. If anyone is interested I can post some pics. Fortunately my truck is white and it is easy to find natural[white] uhmwpe. Colors would be a problem[doesn't paint well]. Black OK as this is a often found uhmwpe color.