3M FX-ST Car Window Tint in Dubai
3M FX-ST is a practical non-metallized automotive window film range for UV protection, glare reduction, privacy and everyday solar control.
Quick answers
3M FX-ST in Four Numbers
What 3M publishes for FX-ST, and what it means for your car.
UV blocked
99%
UV blocked on every FX-ST shade, protecting skin and the interior.
Glare cut
40–95%
Glare reduction runs from 40 percent at FX-ST 50 to 95 percent at FX-ST 5.
Infrared rejected
7–8%
Infrared rejection in the 900 to 1,000 nm band stays flat whatever the shade. Darker does not mean cooler.
TSER on Auto 75
50–61%
Total solar energy rejected on Auto 75 glass, much of it done by the factory glass itself.
3M FX Standard Series automotive data, on Auto 75 factory-tinted glass. Full tables are below on this page.
How 3M FX-ST Window Film Works
3M FX-ST is the value-focused branch of Car Cool’s automotive window film range. It uses a non-metallized dyed-polyester construction to reduce ultraviolet exposure, visible-light glare and part of the solar-energy load entering through vehicle glass.
FX-ST should be selected by measurable attributes rather than darkness alone. Compare visible light transmission (VLT), total solar energy rejection (TSER), UV rejection, glare reduction, outward visibility and the position of each glass panel. For stronger heat-management performance, compare 3M Color Stable, 3M Ceramic IR and 3M Crystalline.
FX-ST Performance: TSER, UV Rejection and VLT
Total solar energy rejection (TSER) is the percentage of total solar energy rejected by the filmed-glass system. 3M’s FX-ST technical sheet reports different TSER values depending on the reference glass used for testing. On Auto 75 reference glass, selected FX-ST configurations reach up to 61% TSER. On 6 mm clear reference glass, selected configurations reach up to 46% TSER. These figures should not be compared without the glass context.
Visible light transmission (VLT) describes how much visible light passes through the filmed glass. Lower VLT creates a darker appearance, increases privacy and generally increases glare reduction. Higher VLT preserves more daylight and outward visibility.
3M publishes up to 99% UV blocking for the FX-ST Series. Compare VLT, TSER, UV blocking and glare reduction together, then review the shade-specific pages for FX-ST 5, FX-ST 20, FX-ST 35 and FX-ST 50.
Privacy and Shade Selection
FX-ST privacy is primarily a function of VLT and lighting conditions. Lower-VLT shades transmit less visible light, so the cabin appears darker from outside. Higher-VLT shades maintain more daylight and outward visibility.
Choose a shade for the specific glass position and current vehicle requirements rather than treating the darkest option as automatically better. The FX-ST 50, FX-ST 35, FX-ST 20 and FX-ST 5 pages explain the individual shade positions in more detail.
Non-Metallized Construction and Signal Compatibility
FX-ST uses a non-metallized dyed-polyester construction. Because the film does not rely on a metallic layer, it is designed to avoid the radio-frequency interference associated with some metallized films.
That material relationship matters for modern vehicles using GPS, mobile connectivity, Bluetooth, keyless entry and connected infotainment systems. Signal performance also depends on the vehicle, antennas, glass and surrounding environment, so it is better described as a construction advantage than an absolute connectivity guarantee.
Reduce Glare
Glare reduction is closely related to VLT. A darker FX-ST shade transmits less visible light, which can reduce bright daytime glare and increase privacy. A lighter shade keeps more daylight and can be easier to see through in low-light conditions.
This is why shade selection should balance glare control, privacy, outward visibility and current vehicle requirements. For drivers who prioritize maximum heat rejection at a lighter appearance, compare the FX-ST range with Ceramic IR or Crystalline.
Choose Your 3M FX-ST Shade
3M FX-ST Window Film Example
3M FX-ST Published Performance by Shade
FX-ST is a dyed, non-metallized polyester range sold in four shades. The published figures below show what the shade number actually buys and what it does not.
FX-ST on Auto 75 automotive glass
| Shade | VLT | Ext. reflectance | Int. reflectance | UV block | TSER | Glare reduction | IRR 900-1000 nm | IRER 780-2500 nm |
|---|---|---|---|---|---|---|---|---|
| Auto 75 glass, no film | 73% | 7% | 7% | 67% | 42% | NA | NA | NA |
| FX-ST 5 | 4% | 5% | 4% | 99% | 61% | 95% | 8% | 54% |
| FX-ST 20 | 20% | 5% | 5% | 99% | 57% | 74% | 8% | 53% |
| FX-ST 35 | 28% | 4% | 5% | 99.3% | 54% | 63% | 7% | 54% |
| FX-ST 50 | 45% | 6% | 6% | 99% | 50% | 40% | 7% | 53% |
FX-ST on 6 mm clear glass
| Shade | VLT | Ext. reflectance | Int. reflectance | UV block | TSER | Glare reduction | IRR 900-1000 nm | IRER 780-2500 nm |
|---|---|---|---|---|---|---|---|---|
| 6 mm clear glass, no film | 89% | 8% | 9% | 38% | 19% | NA | NA | NA |
| FX-ST 5 | 4% | 5% | 4% | 99% | 46% | 95% | 8% | 24% |
| FX-ST 20 | 23% | 5% | 5% | 99% | 40% | 74% | 8% | 23% |
| FX-ST 35 | 33% | 5% | 5% | 99% | 37% | 63% | 7% | 24% |
| FX-ST 50 | 54% | 6% | 6% | 99% | 31% | 39% | 7% | 23% |
What the numbers show
Across the range, glare reduction falls from 95 percent at FX-ST 5 to 39 percent at FX-ST 50, because glare tracks the shade directly. Infrared rejection barely moves: 7 to 8 percent IRR in the 900 to 1,000 nanometre band on every shade, and 53 to 54 percent IRER on Auto 75 glass. In other words a darker FX-ST buys privacy and glare control, not infrared performance. If the requirement is heat, compare 3M Ceramic IR at 78 to 95 percent IRR or 3M Crystalline at 95 to 99 percent IRR, both of which hold that performance at light shades where FX-ST cannot.
Total solar energy rejected also depends heavily on the glass underneath. The same FX-ST 20 reads 57 percent TSER on factory-tinted Auto 75 glass and 40 percent on 6 mm clear glass, because the glass is doing part of the work. This is why a film name alone never predicts the installed result, and why the shade on the finished window has to be measured rather than assumed. See car window tint law in Dubai for the limit that applies to a private vehicle.
Figures as published by 3M for the FX Standard Series. They describe the stated test configuration, not a guaranteed installed result on every vehicle.
Pick a shade
The Four FX-ST Shades Side by Side
Each shade has its own page. Figures on Auto 75 factory-tinted glass.
LightestFX-ST 50
- Visible light
- 45%
- TSER
- 50%
- UV blocked
- 99%
Glare reduction40%
A subtle tint with UV protection. Check the finished reading against the legal limit.
MediumFX-ST 35
- Visible light
- 28%
- TSER
- 54%
- UV blocked
- 99.3%
Glare reduction63%
More privacy and glare control for everyday driving.
DarkFX-ST 20
- Visible light
- 20%
- TSER
- 57%
- UV blocked
- 99%
Glare reduction74%
Strong privacy, typically chosen for rear windows.
DarkestFX-ST 5
- Visible light
- 4%
- TSER
- 61%
- UV blocked
- 99%
Glare reduction95%
Maximum privacy. Outward visibility at night is reduced, and dark shades fall below the 50 percent limit for a private car’s side and rear glass.
Figures from the 3M FX Standard Series data on Auto 75 glass. See the tint law in Dubai page for private car limits.
Before you buy
Three FX-ST Myths
Three beliefs that lead drivers to expect more heat control than FX-ST gives.
Myth
FX-ST 5 is the coolest film because it is the darkest
Fact
Its infrared rejection is 8 percent in the 900 to 1,000 nm band, the same as FX-ST 50. Darkness buys privacy and glare control, not infrared.
Myth
The TSER figure is all down to the film
Fact
The factory glass already rejects 42 percent of solar energy. The same FX-ST 20 reads 57 percent TSER on Auto 75 glass and 40 percent on clear glass.
Myth
Entry film means low quality
Fact
FX-ST is a genuine 3M dyed film with 99 percent UV blocking. It is the right choice when privacy and glare, not heat, are the goal.
Deciding between FX-ST and a heat film?
Tell us the car and whether privacy or heat matters more. We will show you FX-ST against Ceramic IR and Crystalline at the same shade.
Frequently Asked Questions About 3M FX-ST
What is 3M FX-ST window film?
3M FX-ST is a non-metallized dyed-polyester automotive window film range designed for UV blocking, glare reduction, privacy and everyday solar control. It sits within Car Cool’s broader automotive window film range.
How much solar energy can FX-ST reject?
The result depends on the shade and the glass used for testing. 3M’s FX-ST technical sheet reports selected configurations reaching up to 61% TSER on Auto 75 reference glass and up to 46% TSER on 6 mm clear reference glass. Always compare the film together with the reference-glass condition.
Does FX-ST block UV?
3M publishes up to 99% UV blocking for the FX-ST Series. UV blocking helps reduce UV exposure through vehicle glass and one contributor to fading and deterioration of interior materials.
Which FX-ST shade should I choose?
Does FX-ST interfere with GPS or mobile signals?
FX-ST is non-metallized, so its construction is designed to avoid the signal-interference issue associated with some metallized films. Actual reception can still depend on the vehicle, antennas, network coverage and surrounding environment.
How does FX-ST compare with Ceramic IR or Crystalline?
FX-ST is the simpler value-focused range. Ceramic IR and Crystalline are more relevant comparison pages when stronger heat-management performance at lighter visible-light levels is a higher priority. For the shade decision on a specific car, see car tinting in Dubai.
Reflectivity and signal behaviour
3M FX-ST is a dyed, non-metallised car window film in four shades: FX-ST 5, 20, 35 and 50. It blocks 99 percent of UV and cuts glare by 40 to 95 percent depending on the shade, but infrared rejection stays at only 7 to 8 percent in the 900 to 1,000 nm band. It is the entry film for privacy and glare, not for heat.
3M FX-ST is a non-metallised construction. That matters twice. Exterior reflectivity stays low, so the glass reads as tinted rather than mirrored from outside, which is the attribute most people actually mean when they say a tint looks cheap. And because there is no metal layer, there is no interference with GPS, mobile data, 5G or satellite radio. Compare reflectivity alongside VLT and TSER rather than judging a film by darkness alone.
Infrared performance across the FX-ST range
3M does publish infrared figures for individual FX-ST shades, and they are modest compared with the ceramic and multilayer ranges. FX-ST 20, for example, is listed at 8 percent infrared rejection on both clear and factory-tinted glass. That is the honest position: FX-ST is selected for UV protection, glare control, privacy and cost, not for infrared-led heat rejection. If infrared performance is the priority, 3M Ceramic IR and 3M Crystalline are the ranges to compare, and the per-shade figures sit in the table on the film guide.
What the law allows in Dubai
The UAE permits up to 50 percent tint on the side and rear windows of a private vehicle, and the front windscreen must stay clear unless an exemption has been approved. Because the finished window is the film plus the factory glass already in the car, a shade that measures 50 percent on clear glass can fall below the limit once fitted. This is the practical argument for choosing a higher-performing film at a lighter shade rather than a darker film. See car window tint law in Dubai.
Warranty, documentation and cost
3M warranty terms vary by market, film version, installer and documentation, so confirm the written term for the exact film being fitted and keep the invoice and product details. On price, the drivers are the film series, the number of glass panels, the shape of the glass, whether old film has to come off first, and the warranty attached. See what car window tinting costs in Dubai and car tint removal.