I purchased one 10 years ago ad it was great for a few years and then it started to get yellow a scratched up like the car headlights. maybe a long warranty???
MANUFACTURER RESPONSE: The tested lifespan of this material is 5-7 years. Of course - your milage may vary depending on care and conditions. But in almost every circumstance the lifespan of a PolyShield is longer than that of a glass shield.