Originally Posted by WillC310
FWIW, I've used Premier's PF Film cleanse and my CB still yellowed. For sealant, I used Z-AIO and Klasse. I have a control sample (door handle cups were CB'd) and they are yellowing too.
Not sure about the Klasse product a I have never used it and cant find any ingrediant info online... but Zaino has always worked very well on PPF. I have never seen any yellowing while using it... and I have seen film that was installed 6-7 years ago and the car sits in the sun daily. I will see what the Klasse product contains. And as far as Premiers products, I have never used any of them.