Originally Posted by frankzlin79
I've only had the Xpel Ultimate on the car for about 5 weeks so too hard to tell. Usually paint protection film starts to show signs of yellowing (esp on white cars) after 9-12 months. I've had three white cars all with various brands of paint protection film and all three films yellowed over time. But most manufacturers warranties will cover yellowing....so you can get it completely redone (free parts and labor) if the yellowing becomes an issue.
I believe xpel has a 10 year warranty.