Ruspert, The Amazing Metal Finish

Ruspert, The Amazing Metal Finish

Ruspert, The Amazing Metal Finish

High grade metal surface finish that resists corrosion


The amazing metal finish is a high grade metal surface processing technology that resists corrosion.

It consists of three layers: the 1st layer: a metallic zinc layer, the 2nd layer: a high-grade anticorrosion chemical conversion film, and a 3rd outer layer; baked ceramic surface coating.

The distinguishing feature of RUSPERT® is the tight joining of the baked ceramic surface coating and the chemical conversion film. These layers are bonded together through chemical reactions, and this unique method of combining layers results in a rigid combination of the coating films.

RUSPERT® treatment does not attribute its anti-corrosion properties to merely a single material, but the synergy of these three layers, which combined have superb corrosion resistant qualities.

RUSPERT® Patent No. 1526310 and 1570203.


Film Structure and the Corrosion Resistance Mechanism


The Ruspert Coating Film Structure


Coating Layers Corrosion Resistance Mechanism
1st layer Metallic zinc layer The steel/iron substrate is protected from corrosion by the self sacrificial galvanic effect of the zinc coating.
2nd layer Chemical conversion coating layer Corrosion resistant performance is improved as the chemical conversion inactivates the zinc plated surface and creates a tight adhesion between the chemically converted layer and the paint layer.
3rd layer Baked ceramic surface coating layer Corrosive elements are intercepted by the strong paint film made of ceramic materials.

Treatment Process


Ruspert Coating Treatment Process


Ruspert Coating Comparison Chart


Test Items RUSPERT Zinc electroplating (Coloured Chromate) Hot Dip Galvanizing
Before Tests Ruspert before tests Zinc Electroplating before Tests Hot Dip Galvanized before tests
Salt spray tests after 1,000 hours

Test method: 5% concentrated salt mist continuously sprayed in accordance with JIS Z 2371 standard.

Ruspert after 1000 Hours of Salt Spray Testing Zinc Electroplating after 1000 Hours of Salt Spray Testing Hot Dip Galvanized after 1000 Hours of Salt Spray Testing
Combined corrosion test after 200 cycles

Test method: repeat a series of cycles, each cycle consists of 2 hours of salt spraying, 4 hours of drying at 60ºC (140ºF) and 2 hours of exposure to humidity of 95% R.H. at 50ºC (122ºF) in accordance with JASO M609-9 1 standard.

Ruspert after 200 Cycles of Combined Testing Zinc after 200 Cycles of Combined Testing Hot Dip Galv after 200 Cycles of Combined Testing
Cass test after 10 cycles

Test method: repeat series of cycles, each cycle consists of 16 hours of exposure and 6 hours of non-exposure to an acetic acid solution of 5% concentration with it pH adjusted between 3.0 and 3.1.

Ruspert after 10 Cycles of Cass Test Zinc Electroplated after 10 Cycles of Cass Test Hot Dip Galvanized after 10 Cycles of Cass Test
Sulfur dioxide gas corrosion test after 15 cycles

Test method: repeat a series of cycles, each cycle consists of 8 hours of exposure to a condensation of gas under 9.8R.H. at 40ºC (104ºF) after supplying sulfur dioxide gas (SO2) of 2.0 ltr to a tightly sealed chamber of 300 ltr & 16 hours of drying at 75% R.H.

Ruspert after 15 cycles of Sulfur Dioxide Gas Electroplated Zinc after 15 cycles of Sulfur Dioxide Gas Hot Dip Galvanised after 15 cycles of Sulfur Dioxide Gas

Note: the corrosion resistance of Ruspert® will depend on a range of factors including the environment. Anzor does not provide any warranty regarding Ruspert’s® corrosion resistance.

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