Rough comparisonThese makers measured their films in different ways, with different glass, lab methods or slices of light. The numbers are a fair guide, but a few points either way doesn't mean one is better.
How each one was measured
- ACrystalline CR BLK: 6 mm clear · ANSI/NFRC 200 · IRER 780–2500 nm; IRR 900–1000 nm film-only
- BIRX: 6 mm clear · NFRC guidelines · IRER/SIRR 780–2500 nm
- CXR PLUS: 3 mm glass · EN 410 · IRER 780–2500 nm; IR at 1025 nm
- ACrystalline CR BLK59%32% at the lightest shade
- BIRX62%50% at the lightest shade
- CXR PLUS71%52% at the lightest shade
XR PLUS publishes the highest number here, 71%. Measured differently, so treat a small lead as a tie.
- ACrystalline CR BLK70%48% at the lightest shade
- BIRX61%59% at the lightest shade
- CXR PLUS70%67% at the lightest shade
Crystalline CR BLK and XR PLUS tie for the highest published number, 70%. Measured differently, so treat a small lead as a tie.
- ACrystalline CR BLK80%70%60%50%40%35%30%
- BIRX50%40%35%30%25%15%5%
- CXR PLUS70%55%45%35%30%20%15%5%
- ACrystalline CR BLK95–98% IRR
- BIRX85–88% SIRR
- CXR PLUS92–96% at 1025 nm
ACrystalline CR BLK3M Automotive Window Film
- What it is
- 200+ layer optical + ceramic
- Price level
- $$$$Flagship
- Made for
- Maximum heat rejection with lighter, factory-friendly shades.
- How open the maker is
- Shows its workPublishes numbers for each shade and how they were measured.
The maker's own numbers ↗BIRXLLumar
- What it is
- Infrared-rejecting nano-ceramic
- Price level
- $$$$Flagship
- Made for
- LLumar's strongest mainstream ceramic heat package.
- How open the maker is
- Shows its workPublishes numbers for each shade and how they were measured.
The maker's own numbers ↗CXR PLUSXPEL PRIME
- What it is
- Multilayer nano-ceramic
- Price level
- $$$$Flagship
- Made for
- XPEL's maximum heat-rejection line.
- How open the maker is
- Shows its workPublishes numbers for each shade and how they were measured.
The maker's own numbers ↗