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Anlaufschutz-Verfahren von DR. HESSE für Metalloberflächen und Beschichtungen aus Zinn, Kupfer, Messing, Silber und chemisch Nickel zum Schutz vor Oxidation, Verfärbung und Mattierung.

Anti-tarnish protection processes

For brass, copper, tin, silver and nickel

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DR. HESSE company logo – specialist for electroplating, electrolytes and surface technology.

Our anti-tarnish protection processes

With our anti-tarnish protection processes, we reliably protect metallic surfaces made of tin, brass, copper and silver against oxidation, discoloration and dulling. In this way, we preserve the functional and decorative properties of the surface – from long-lasting visual appearance to reliable contacting and solderability.

Anlaufschutz-Verfahren von DR. HESSE für Zinn-, Kupfer- und Messingoberflächen zum Schutz vor Oxidation, Verfärbung und Mattierung.

Simply the right protection

for tin, copper and brass

SOLAR 7074 PT by DR. HESSE as anti-tarnish protection and passivation for tin coatings on electrical contacts – comparison with and without tarnish protection.
With / Without anti-tarnish protection

Features / Benefits:

  • Effective anti-tarnish protection for high-quality tin coatings

  • Reliable protection against oxidation, discoloration and dulling

  • Fully analytically controllable process

  • Excellent solderability for permanently reliable contacts

SOLAR 7074 PT

Anti-tarnish protection / passivation for tin

Brass door knob with and without anti-tarnish protection by DR. HESSE – protection against oxidation, discoloration and dulling on brass surfaces.
Copper buckle with and without anti-tarnish protection by DR. HESSE – protection against oxidation, discoloration and dulling on copper surfaces.

With / Without anti-tarnish protection

Features / Benefits:

  • Effective anti-tarnish protection for high-quality brass and copper coatings

  • Reliable protection against oxidation, discoloration and dulling

  • Simple process control through on-site analysis

Passivation for Ms

Anti-tarnish protection / passivation for brass and copper

HESSOPAS AG von DR. HESSE als Anlaufschutz für Silberoberflächen – Schutz vor Oxidation, Verfärbung und Mattierung bei technischen Kontakten und dekorativen Anwendungen.

The anti-tarnish protection for silver

HESSOPAS AG

HESSOPAS AG D-100 by DR. HESSE as anti-tarnish protection for decorative silver surfaces – silver goblet with and without tarnish protection in comparison.
HESSOPAS AG D-100 by DR. HESSE as anti-tarnish protection and passivation for silver contacts – protection against oxidation, discoloration and dulling without negatively affecting conductivity.

With / Without anti-tarnish protection

Features / Benefits:

  • Organic anti-tarnish protection / passivation

  • Reliable protection against discoloration and dulling

  • Simple process control through on-site analysis

  • No negative influence on the conductivity of the silver coatings

HESSOPAS AG D-100

Anti-tarnish protection / passivation for silver

Chemisch vernickeltes Bauteil mit und ohne Anlaufschutz EN-20 von DR. HESSE nach dem Tempern – Schutz vor Anlauffarben, Verfärbung und Mattierung.

Anti-tarnish protection for heat-treated electroless nickel coatings

Tarnish Preventive EN-20

EN-20 by DR. HESSE as anti-tarnish protection for electroless nickel coatings after heat treatment – comparison of a protected and discolored surface with tarnish colors.

With / Without anti-tarnish protection after heat treatment

Features / Benefits:

  • Organic anti-tarnish protection for electroless nickel coatings

  • Protects the surface against brownish to iridescent discoloration during and after heat treatment

  • Supports a uniform, high-quality appearance of the coating

  • Suitable for applications where heat treatment is carried out without a protective atmosphere

  • Reduces the surface’s sensitivity to fingerprints

Tarnish Preventive EN-20

Anti-tarnish protection / passivation for electroless nickel

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