i recently did a spreadsheet for my local tint shops. based on my many hours of Googling, youtube-ing, Llumar seems to be the best and proven history. My M3P is sitting in s detail shop getting tints an Stek PPF.
Not many shops offer Llumar. i was close to settling for 3M
i would get Kavaca instead of Xpel.
here's a Reddit post:
Want to know a secret about window tint? Almost all brands are reboxes of the big names (Eastman, Solar Gard, Garware, and a couple of smaller ones.). Let me break it down a bit further.
Eastman (made in South Korea)
- Autobahn
- LLumar
- Gila
- Black Magic
- SunTek
Garware (made in India)
Global
- XPEL
- Kavaca
- HITEK
- Helios
- GeoShield
There are no domestically produced (US) film companies. ASWF is based in the south, however, their product appears to be Chinese in origin and has a very high failure rate. There are publically available records through customs that aligns with this.
Focus on TSER - Total Solar Energy Rejection. That includes heat, UV/IR ray, and other metrics. Heat rejection is just how much heat penetrates the glass versus what bounced back.
Moral - they all are mostly the same aside from slight differences (i.e. polymer color change, adhesive strength, etc.) so choose whichever has the numbers and customer service to your liking.