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Uncovering Beauty in Stainless Steel

Abel specializes in stainless-steel surface treatments. Since our founding in 1965, we’ve developed proprietary technologies that expand the potential of stainless steel—always guided by a commitment to functional beauty.

Our Technology

Abel Black® Patented Technology
Surface treatment for stainless steel that achieves a deep black by absorbing 99% of light

This patented process is the only method in the world that uses light interference to create a black finish by growing an oxide film on the stainless-steel surface through controlled electrochemical treatment.

Unlike paint or plating, the color is not applied on top—it becomes part of the material itself, preserving the natural beauty of the metal without risk of peeling.

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Our Products

Abel Black® Standard Products

Abel Black® standard products, ready for immediate use on site. Available in flat sheets in standard sizes and coils cut to custom widths on request.

Other Services

Proprietary Surface Finishing and Project Partnerships

We provide electropolishing and chemical polishing for stainless-steel components. As a project partner, we also support consulting, specialized development, and technical problem-solving related to stainless-steel materials.

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Frequently asked questions (FAQ)

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  • We specialize exclusively in stainless steel, so we do not process other materials.
  • The black oxide film is the same passive layer naturally formed on stainless steel, so it does not need removal and can be recycled as stainless steel.
  • Unlike paint or plating, Abel Black® forms an ultra-thin oxide film that won’t peel and preserves the metal’s natural texture. It offers excellent corrosion and weather resistance, is stable under temperature changes, and does not cause dimensional changes.
  • Yes, it meets RoHS requirements.
  • Yes, shipping is available to Japanese ports. Please consult sales.
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We’re here to support your stainless steel projects