Jeff@STEK

Wow you had done your research. So to put it simply if you are looking for the best IR rejection film for the best feel in the car sputtered film is going to be the best. It does have metals in it and will reflect the heat but this also come with a big price point. Ceramic films are all absorption type films so that is why the glass feels crazy hot but does not mean it will always pass though 100% it will depend on the film and what the specifications. You should look for something in the farther IR range of the film instead of just something with Near IR as these is only numbers but does not necessarily mean a cooler car. There are line hundreds of brands out there and the big names are most popular, but as I am biased as I do work for STEK. Do check out our STEK NEX films with Graphene technology it is a ceramic film and it is bluish due to the ceramic materials that we use and has no dyes to give a different color so the film will not fade or turn purple. Amazing heat rejection and top tier film https://www.stekautomotive.com/wf/nex/ We are a bit newer in the industry for window films but I have this in my own vehicle and love the performance in the summer days! Notice that I do not use my A/C as much too. Hope this helps but shoot me a message if you want to chat more.

Try our STEK DYNOflex for the windshield for your windshield. Find out more at https://www.stekautomotive.com/ws/dynoflex/ As for a film I would recommend a matte PPF film for the car screen if you do not want fingerprints.