Abel Black® is the world’s only technology that permanently transforms stainless steel into deep black by forming a thin oxide film through controlled electrochemical processing. The color arises from light interference within the film—not from pigment or plating—so it will never peel or fade, preserving the metal’s natural texture and integrity.
Precise surface treatment contributes to optical devices, communication equipment, and consumer electronics. Abel Black® forms a strong coating ideal for internal parts requiring light blocking and anti-reflection, and also suits exterior components where a premium finish is desired.
Used as interior and exterior architectural materials, Abel Black® offers a finish that combines understated elegance with durability. It’s also favored in kitchens and sanitary fixtures, maintaining beauty even in environments prone to corrosion.
Abel Black® enhances aftermarket parts like window moldings and scuff plates with a black finish that preserves the metal’s texture. It delivers a deep metallic black with durability suitable for daily use, balancing toughness and refined appearance for both interior and exterior components.
Meets strict cleanliness standards and is ideal for vacuum devices that require improved thermal emissivity in heating and cooling components.
Contributes to products such as protective coatings for power transmission lines, supporting essential infrastructure that quietly safeguards daily life.
At Abel, we believe beauty is not something you add on, but something you reveal. Abel Black® reflects this philosophy by drawing out the natural metallic character of stainless steel without applying paint, achieving a rich black tone.
The oxide film’s growth imparts heat resistance, weather resistance, and strong corrosion resistance, expanding design possibilities. This is not just a surface finish — it’s a technology delivering reliable, enduring value.
Abel Black® forms an ultra-thin oxide film that reveals the metal’s natural texture. Its deep black tone is created through light interference—not coating—preserving the true character of stainless steel
The ultra-thin oxide film maintains dimensional accuracy and resists peeling during progressive pressing, multi-step forming, insert molding, roll forming, and roll-to-roll processing. This simplifies manufacturing steps and reduces costs.
Proven to withstand 500 hours of salt spray testing and 1,000 hours of weathering tests. Demonstrates approximately 30 times greater resistance to ferric chloride corrosion than untreated stainless steel. It offers high durability against abrasion and outdoor exposure.
Reduces reflectance across the visible light spectrum, absorbing up to 99% of light. Enhances optical precision and glare reduction.
Improves radiative performance for applications involving heat retention and thermal management.
Since the color is formed during shaping rather than applied afterward, it is more cost-effective than post-treatment coloring.
No need for additional surface treatment after forming, whether in-house or outsourced, reducing manufacturing steps.
The ultra-thin film preserves the accuracy achieved through specialized press forming techniques.
Meets RoHS and REACH regulations (free from lead, mercury, cadmium, and hexavalent chromium).
Holds ISO 9001 certification for surface treatment design and processing.
It supports progressive stamping, multi-stage and insert molding, roll forming, and roll-to-roll processing.
Even with sharp 90° bends, the deep black finish remains intact without peeling or whitening.
A deep, glossy black mirror finish reminiscent of lacquer.
A smooth hairline finish with long, unidirectional lines that catch the light with a subtle black shimmer.
A finish with random multidirectional lines, creating a fine scratch pattern similar to traditional Japanese washi paper.
A glossy textured finish with fine surface irregularities, offering a sophisticated, muted black appearance.
| Features | Abel Black® Thin Oxide Film | Coating | Anodizing | Dry Plating PVD, CVD | Wet Plating Wet Electroplating |
|---|---|---|---|---|---|
| Will not peel or flake when bending | ● | ○ | △ | △ | △ |
| Maintains workability (press forming, bending) | ● | ○ | △ | △ | △ |
| Weather / corrosion resistance (long-term) | ● | △ | △ | ● | △ |
| Low-gloss / anti-reflection | ● | △ | △ | △ | △ |
| High thermal emissivity (high radiation) | ● | △ | △ | △ | △ |
No fading after 1,000 hours in a Super Xenon Weatherometer test.
Holds color up to 300°C - even higher in vacuum sealed chamber.
No rust after 500 hours of salt spray testing.
Approximately 30 times greater corrosion resistance compared to untreated stainless steel.
