Color Treatments for Decorative Metal Finishing


Technic supplies a wide range of color treatments to manufacturers in the decorative metal finishing industry.

Color treatments for decorative finishing include high-quality solutions for aluminum, cast-iron, copper, copper alloys, iron, silver, and steel.

Available processes include blackening, green copper, ancient bronze coloring and others. Color treatments are often used for decorative applications such as jewelry, furniture, design pieces, handbags, and footwear.

copper patina decorative metal finish

Mark 20 L

Immersion coloration – blackening process by chemical dip on copper

Mark 25 S

Immersion coloration –brush or chemical dip on copper and alloys

Mark 71

Immersion coloration – blackening process for silver

Mark 511

Immersion coloration – chemical dip process for ancient bronze color

Mark SS 73

Room temperature direct blackening process for stainless steel

Mark A 380

Room temperature blackening solution for aluminum 

Mark 5333

Room temperature direct blackening process for iron, steel and cast-iron

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