Scientists develop ultra-black car paint that absorbs 99.9% of light

A team of researchers has developed an ultra-black automotive coating capable of absorbing 99.9% of visible light, creating a finish so dark that vehicles coated with it can appear almost two-dimensional to the human eye.

The breakthrough coating, developed by scientists at Nipsea Group, combines carbon black pigment with carbon nanotubes to create what researchers describe as one of the darkest automotive coatings ever produced.

Unlike conventional black car paint, which reflects a small amount of light, the new ultra-black coating traps nearly all visible light that strikes its surface. As a result, body lines, contours and design details can appear to vanish from view.

A new milestone in ultra-black automotive coatings

The quest to create the blackest car paint has fascinated scientists, engineers and automotive designers for years.

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Standard black automotive paints already absorb a large proportion of light, but researchers say they face limitations because carbon black particles tend to clump together, causing unwanted light scattering.

To overcome this challenge, the research team developed a water-based composite coating that combines nanoscale carbon black particles with carbon nanotubes.

The microscopic structure created by these materials enhances what scientists call "structural absorption", allowing the coating to absorb an average of 99.9% of visible light.

According to the researchers, the coating also passed key durability tests required for automotive applications, including humidity and water-resistance assessments. This addresses one of the major challenges that has limited the use of ultra-black materials on production vehicles.

How does ultra-black paint work?

The extreme darkness is achieved through carbon nanotubes, microscopic cylindrical structures made from carbon atoms.

Rather than reflecting light back towards the viewer, the nanotubes trap incoming light within tiny spaces between them, where it is repeatedly scattered and absorbed.

This process dramatically reduces reflectance and creates an optical illusion in which three-dimensional objects can appear unusually flat.

The human eye relies on reflected light to detect edges, depth and shape. When almost no light is reflected, these visual cues disappear.

The effect is so striking that observers often describe ultra-black objects as looking like silhouettes, voids or even holes in reality.

The legacy of Vantablack

The new development inevitably draws comparisons with Vantablack, one of the world's most famous ultra-black materials.

Developed by UK-based Surrey NanoSystems, Vantablack is a carbon nanotube coating originally created for scientific and aerospace applications.

The material absorbs up to 99.965% of light, making it one of the darkest substances ever produced. It has been used in satellite systems, telescopes and optical instruments where eliminating stray light is critical.

In 2019, BMW unveiled a one-off BMW X6 concept vehicle coated in a sprayable Vantablack variant known as VBx2. The dramatic finish made the SUV appear almost unreal, with many of its design features visually disappearing into a black void.

However, many ultra-black materials have traditionally been too delicate, expensive or complex for large-scale automotive use, limiting them to concept vehicles and specialist applications.

Why the automotive industry is interested

Luxury car manufacturers have long sought deeper, richer black finishes to enhance vehicle aesthetics and exclusivity. An ultra-black coating can create a dramatic visual effect unlike any conventional paint colour.

Researchers believe the new coating could help bridge the gap between laboratory-grade ultra-black materials and practical automotive finishes.

By offering both extreme light absorption and greater durability, the technology could potentially pave the way for future applications in premium vehicles, concept cars and advanced automotive design.

Despite the breakthrough, challenges remain

Despite the breakthrough, further testing is still required before ultra-black coatings become common on public roads. Researchers note that long-term assessments involving scratch resistance, ultraviolet exposure, corrosion protection and real-world wear are still needed.

There are also practical considerations. Vehicles coated in extremely light-absorbing materials could present visibility and safety challenges, particularly in low-light conditions, although no commercial deployment plans have yet been announced.

The future of black car paint

The development represents another step in the evolution of ultra-black materials, an area that has applications far beyond automotive design.

Similar coatings are already used in aerospace engineering, astronomical observation, optical sensors and scientific instruments where controlling light is essential.

For now, the new 99.9% light-absorbing automotive coating demonstrates how advances in nanotechnology and carbon nanotube engineering are pushing the limits of what is possible in automotive paint technology.

While the world's blackest production car may still be some way off, scientists are steadily moving closer to turning a concept once confined to laboratories into a road-ready reality.