I can explain on your Duraguard SE60.. I nearly get this tint for my Rondo.. Was doing a survey last week
1.) Went to air cool shop & the SA recommended their highest grade security file Duraguard SE60 (5 mil) with IR heat rejection of 95%. And the medium grade Monotex with 88% IR heat rejection.. I took both the sample from them

2.) Went to (V-kool dealer),tested both sample film on their 3M digital tester..OMG, the so call Duraguard SE60 claims of 95% IR heat rejection.. Is totally out ! The 3M digital reader shown only 65% heat rejection.. And Innotex which claim that reject 88% is actaully only at 50% !! We test V-kool, Rike Cool and some range of the product with the same 3M digital reader.. Shows very impressive result !!

So, now u understand why your car is hot like Owen when park outside !! Actually i did sign up for this package with them during a air cool exhibition with RM10 deposit.. Now i have to burn out this deposit.. Luckly....

P/S: the air cool monotex paper, when we shine on a bulb tester.. Can u imagine, it melt off??? The paper just got sign of burning with smoke and the film just crumpled.. Now only i know Air Cool quality...