Why Vanta Black Coatings Might Change Auto Finishes Forever
- 01. What Vanta Black actually is
- 02. BMW X6 Vanta Black show car
- 03. Current automotive applications of Vanta Black variants
- 04. How Vanta Black improves ADAS performance
- 05. Technical limitations and safety constraints
- 06. Comparison of Vanta Black variants in automotive settings
- 07. Installation and processing workflow
- 08. Regulatory and future outlook
What Vanta Black actually is
Vanta Black denotes a family of carbon-nanotube coatings developed by Surrey NanoSystems around 2014, initially for aerospace and scientific optics where controlling stray light is mission-critical. The core Vantablack formulations function by growing a dense "forest" of vertically aligned nanotubes on a substrate, so incoming photons bounce repeatedly between tubes and are converted into heat instead of being reflected. This structure can achieve total hemispherical reflectance below 0.2% across UV to THz wavelengths, making it effectively the blackest man-made material on Earth.
In the automotive context, most suppliers use the Vantablack VBx2 variant, a sprayable, thermally cured ultra-black coating that still achieves about 1% total hemispherical reflectance, which is low enough for high-performance optical systems but more practical than the original vacuum-grown VANTAs. Because of its extreme fragility, high-temperature processing, and handling sensitivity, authentic Vanta Black is not licensed for exterior car body finishes; Surrey NanoSystems restricts it to defense, scientific, and approved automotive-optical applications under strict licensing agreements.
BMW X6 Vanta Black show car
The first mainstream automotive use case visible to the public was the BMW X6 Vantablack show car, unveiled at the 2019 Frankfurt Motor Show (IAA) in August 2019. The SUV was coated with VBx2 applied to suitably prepared metal surfaces, giving the body a nearly depthless, "black hole" appearance that dramatically reduced specular highlights and made the vehicle's contours appear flattened.
BMW and Surrey NanoSystems emphasized that this was a one-off demonstration, not a production option, because the Vanta Black coating on aluminum required temperatures above 800°F (about 425°C) during curing and remained highly sensitive to abrasion, cleaning, and thermal cycling. Road-safety concerns also arose: the near-zero reflectance could make the vehicle harder to see in low-light conditions and altered how other drivers perceived its distance and speed, which would conflict with global road-safety standards.
Current automotive applications of Vanta Black variants
Today, the real automotive value of Vanta Black lies inside the car, not on the body. A growing number of premium and volume manufacturers integrate Vantablack or similar ultra-black coatings into ADAS sensor housings for cameras, LiDAR, and infrared systems. These coatings cut internal reflections, glare, and stray light by absorbing more than 99% of incident visible and near-infrared radiation, which improves signal-to-noise ratio and contrast in conditions such as tunnel exits, sunset glare, and heavy rain.
In addition to camera systems, Vantablack-type coatings are used in:
- Head-up displays (HUDs) to suppress ghost images and improve contrast on windscreen projections, especially in bright sunlight.
- Matrix headlamps to minimize light leakage in "off" LED segments, enhancing the precision of adaptive beam patterns.
- LiDAR modules to reduce internal reflections and cross-talk between channels, improving ranging accuracy and object detection.
How Vanta Black improves ADAS performance
Automotive-grade ultra-black coatings such as VBx2 can reduce stray light in sensor modules by roughly 80-90% compared with conventional matte black paints, based on Surrey NanoSystems' optical test data from 2020 onward. For camera-based ADAS, this translates into up to 20-30% improvement in contrast ratio and a noticeable reduction in pixel washout and "blooming" artifacts when the sun is near the horizon or when driving through sun-dappled tree lanes.
Testing by Tier-1 suppliers in 2023 showed that Vantablack-lined camera housings retained usable image quality at sun elevation angles as low as 5°, whereas standard black interiors began to suffer flare and veiling glare at around 15°. In LiDAR systems, the same family of coatings reduced internal reflections by an order of magnitude, which helped lower the incidence of false returns and improved object detection in high-dynamic-range environments such as urban canyons and highway on-ramps.
Technical limitations and safety constraints
Vanta Black's performance ceiling is matched by severe technical constraints that make it unsuitable for mass-market exterior finishes. The original VANTAs require growth in a vacuum at temperatures above 400-800°C, which is incompatible with typical automotive-paint shops and thermoplastic or composite body panels; even the sprayable VBx2 formulation needs elevated curing temperatures and controlled environments.
Mechanically, the coating has low resistance to abrasion and direct impact, so car washes, gravel roads, and routine cleaning can damage the nanotube structure and degrade its optical performance. As a result, Surrey NanoSystems' automotive datasheets explicitly state that VBx2 is "not suitable as an external or internal car body finish" and should be applied only to protected optical components such as sensor baffles and projector apertures.
Comparison of Vanta Black variants in automotive settings
The table below illustrates typical automotive-relevant Vantablack variants and where they are used:
| Vantablack variant | Reflectance (approx.) | Application method | Typical automotive use |
|---|---|---|---|
| Vantablack S-V | < 0.2% total hemispherical | Vacuum-grown CNT array | Space and metrology; not automotive body |
| Vantablack VBx2 | ~1% total hemispherical | Thermally sprayed coating | ADAS sensors, HUDs, head-lamp apertures |
| Vantablack 310 | ~0.5-0.7% (visible) | Spray-applied, field-durable | Aerospace and high-end ADAS modules |
Installation and processing workflow
When applied to automotive components, Vanta Black coatings follow a tightly controlled sequence that OEMs and Tier-1 suppliers treat as a proprietary process. A typical technical workflow for a camera baffle lined with VBx2 looks like this:
- Substrate preparation: Machine and clean the metal or engineered-plastic baffle to remove oils, dust, and oxidation, often using plasma or chemical etching.
- Masking: Shield non-target areas (threaded mounts, connectors, and electrical contacts) with high-temperature tape or lacquers.
- Spray application: Apply the VBx2 suspension in a controlled booth using robotic or HVLP spraying to ensure uniform thickness.
- Curing: Heat the coated part in a calibrated oven to the specified temperature range (often 120-200°C, depending on the binder system) for a set dwell time.
- Optical inspection: Measure hemispherical reflectance at key wavelengths and confirm that stray-light baffling meets the design target before assembly into the sensor module.
Regulatory and future outlook
Regulators and standards bodies have not yet created explicit rules for ultra-black external finishes, but national road-safety authorities have signaled concern about extremely low-reflectance surfaces that could reduce vehicle conspicuity or distort distance perception. As a result, OEMs and suppliers are focusing R&D on Vantablack-type coatings inside the vehicle, where they must comply with existing requirements for outgassing, temperature cycling, and electromagnetic compatibility rather than visibility standards for exterior paint.
Looking ahead, engineers expect that variants of Vanta Black will become embedded in the next generation of Level 3 and Level 4 vehicles, where dependable camera and LiDAR performance is critical for conditional and high-automation driving. At the same time, the premium-aesthetic market will likely continue to adopt "Vanta-inspired" super-black paints for grilles, badges, and trim, while authentic Vanta Black remains a niche, performance-driven material reserved for mission-critical optics rather than cosmetic styling.
Everything you need to know about Why Vanta Black Coatings Might Change Auto Finishes Forever
Is Vanta Black used on production cars?
Authentic Vanta Black is not used as an exterior or interior car body finish on production vehicles; the only known example is the BMW X6 Vantablack show car from 2019, which remained a one-off design study. Instead, OEMs license Vantablack or similar ultra-black materials for internal optical components such as camera housings, LiDAR baffles, and HUD projectors, where the coating's light-absorbing properties deliver measurable safety and performance benefits without touching the vehicle's exterior paint.
Why can't drivers order Vanta Black paint for their cars?
Drivers cannot order Vanta Black paint primarily due to licensing restrictions and technical impracticality. Surrey NanoSystems restricts Vanta Black for consumer or aesthetic use, licensing it only for defense, space, scientific, and approved automotive-optical applications; even the sprayable VBx2 variant is explicitly not approved for body-work finishes. Additionally, the coating's fragility, high-temperature curing, and potential impact on road safety make it unsuitable for mass-market exterior finishes.
How does Vanta Black affect sensor accuracy?
Vanta Black improves sensor accuracy by reducing stray light and reflections inside optical systems by up to 80-90% compared with conventional black coatings, depending on the specific design and wavelength band. In cameras, this increases contrast and reduces flare, which helps the image-processing stack detect low-reflective objects such as dark-painted vehicles at night. For LiDAR and infrared sensors, the lower background noise and fewer false returns support more consistent object classification and safer activation of autonomous-driving features in mixed-light environments.
Are there cheaper alternatives to Vanta Black for cars?
Yes, several Tier-1 paint and coating suppliers now offer "super-black" or "near-Vantablack" finishes that mimic the deep-black appearance while being far more robust and cost-effective for both aesthetic and functional applications. These systems typically use advanced carbon-black pigments, multi-layer dark lacquers, or textured coatings that absorb 95-98% of visible light, versus 99+% for Vanta Black, but they can be applied in standard automotive paint shops and withstand road-use conditions.