Which tint film actually blocks heat?
Ten films, one table. Sort by the number that predicts cabin heat (TSER), not the infrared figure brands advertise, and see what each costs installed.
| Film | Type | Shade shown | Heat (TSER) | Infrared | UV | Warranty | Installed (sedan) | Take |
|---|---|---|---|---|---|---|---|---|
| Huper Optik Ceramic | nano-ceramic | 30% | 63% | 86% | 99% | Lifetime | $550 – $800 | Dye-free, very stable color; cult following. |
| XPEL Prime XR Plus | nano-ceramic | 35% | 59% | 96% | 99% | Lifetime | $550 – $750 | Highest published IR rejection in this set. |
| XPEL Prime XR | ceramic | 35% | 59% | 78% | 99% | Lifetime | $450 – $650 | Ceramic without the Plus premium; XPEL spec sheet lists 78% IR at most shades, not the 88% dealers quote. |
| 3M Ceramic IR | ceramic | 35% | 58% | 85% | 99% | Lifetime | $500 – $700 | 3M's ceramic with IR focus; strong value under Crystalline. |
| SunTek Evolve | nano-ceramic | 35% | 57% | 93% | 99% | Lifetime | $450 – $650 | Eastman's ceramic flagship; often priced under LLumar IRX. |
| LLumar IRX | nano-ceramic | 35% | 54% | 87% | 99% | Lifetime | $500 – $700 | Installer default for heat without going dark. |
| SunTek CXP | carbon | 35% | 53% | 79% | 99% | Lifetime | $250 – $400 | Carbon, no fade; the budget pick that still looks right. |
| XPEL Prime CS | dyed | 35% | 52% | 12% | 99% | Lifetime | $250 – $400 | Color-stable dyed; looks the part, modest heat rejection. |
| 3M Crystalline | nano-ceramic | 70% | 51% | 97% | 99% | Lifetime | $600 – $900 | Near-clear film that blocks heat; premium price. |
| LLumar CTX | ceramic | 35% | 48% | 69% | 99% | Lifetime | $450 – $600 | Value ceramic; most of IRX's heat rejection for less. |
TSER is the number that predicts cabin heat; IR rejection is the marketing number. Figures are manufacturer-published at the shade shown and vary by VLT. Prices are Coateau installed ranges for a sedan, all side and rear windows.
Specs checked 2026-10-02
- LLumar automotive window film performance data (IRX 35)
- LLumar automotive window film performance data (CTX 35)
- 3M Crystalline Series technical data sheet (CR BLK 70, Auto 75 glass)
- 3M Ceramic IR Series technical data sheet (Ceramic IR 35, Auto 75 glass)
- XPEL Prime USA specification sheet (XR PLUS 35)
- XPEL Prime USA specification sheet (XR Black 35)
- XPEL Prime USA specification sheet (CS Black 35)
- SunTek automotive window film specifications (Evolve 35)
- SunTek automotive window film specifications (CXP 35 Black)
- Huper Optik USA ceramic series specifications (C30, single pane)
Questions people ask
What is TSER?
Total solar energy rejected: the share of solar visible, infrared and UV energy the film blocks. It is the number that predicts how hot the cabin gets.
Why do brands advertise IR rejection instead?
Infrared figures are higher and easier to market, but IR is only part of solar heat. A film with 95 percent IR can still let half the total energy through.
Is nano-ceramic better than ceramic?
Usually a little: smaller particles reject more heat at the same shade without haze. The gap between a good ceramic and a nano-ceramic is smaller than the gap between either and carbon.
Does the shade change heat rejection?
Darker shades of the same film reject somewhat more heat, but film technology matters far more. A 70 percent ceramic beats a 5 percent dyed film.
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