azzurribaggio

19 minutes ago, Bham said:

The easy answer is that your car will still get hot sitting in the sun and will still feel hot inside after doing so.  You can't stop convection and conduction of heat around the rest of the car.  i.e. - the plastics, the metal, the outside of the all the glass. All this heat will transfer to the inside of the car.  

 

The purpose of ceramic and IR films is for what you feel on your skin.  This is the reason it works so well, because our skin feels more of the IR heat spectrum and this is what is being blocked.  It is a feel thing not a heat thing.  If you didn't have skin, the basic film that blocks UV would be just fine.  

 

Also, clear films no matter how good they say they are, are not very good on the performance side for heat rejection.  There is nothing there so you can't expect it do anything.  It's clear. 

@Bham

Thank you very much for that insight and knowledge.

So between 3M Crystalline and 3M Ceramic IR which one should I have chosen based on my end goal (kind of a mute point but just for my future knowledge)?

So me choosing CR70 probably only helps a little as far as heat rejection when I am in the car versus if I went with CR60 or CR50, correct?

On 6/30/2022 at 11:21 AM, Tintguy1980 said:

I've had Crystalline 40 on my front driver and passenger glass for 7 years now, it's always parked outside sun-exposed, and it is holding up pretty dammed impressive here at the South side of Virginia (as if it were installed recently).

So I went and got CR90 on the windshield and CR70 everywhere else.

When I went into the shop I noticed something called 3M Ceramic IR film but didn't ask about it and regret that. Since my goal was to keep my interior as cool as possible and protect it from the sun since it sits outside 100% of the time should I have gone with 3M Ceramic IR film?

When I went to pickup the car from the shop yesterday it still felt like an oven inside, mind you the temperature got to 100 degrees that day.

Here is how it looks.

I've got a car that sits ourdoors all year round and would like to protect my interior.

I've heard 3M Crystalline is the best tint out there for this purpose?

Also are there any tint out there where you don't get the light refraction affect at night with the rear window?