Many PPF brands returned their items with warranties opposed to defects like peeling or yellowing for further assurance.

https://www.google.com/maps/place/MK Auto Design/@36.10348,-95.86804,17z/data=!3m1!4b1!4m6!3m5!1s0x87b68d1bf0000951:0x4d35a44897f821e7!8m2!3d36.1001851!4d-95.8669168!16s%2Fg%2F11rhnp19y1?entry=ttu&g_ep=EgoyMDI1MDcwOS4wIKXMDSoASAFQAw%3D%3D

Many PPF manufacturers lower back their products with warranties in opposition to defects like peeling or yellowing for delivered warranty.