PRECOATED ZINTEK

The new surface applications on Zinc-Copper-Titanium rolled sections is based upon this technological breakthrough and the development of three diverse outputs. In all cases the results are surfaces with chemical and physical features which are unique and different.
Surface treated ZINTEK is a phosphate coated Zinc-Copper-Titanium alloy processed by a cationic crystalline product, in full compliance with international normative UNI ISO 9717, with a final "environmental" complex Zirconium salt oxidation stage.

Specifications and features:
· Weight of coating 3 ÷ 4 g/m2
· High level of atmospheric corrosion resistance tested through a series of comparative trials of exposure to salt spray testing in compliance with norm ASTM B117.
· A solid crystalline layer as evidenced by tests made with a SEM (electron microscope).

 

PROPERTIES

The chemistry of the surface conversion process

In general a surface conversion process and phosphate coating in particular, induce crystalline growth on a metal surface.
Unlike any other type of application such as galvanized coatings the formed layer becomes an integral part of the surface itself. Considered altogether the conversion process that takes place on the surface is nothing less than extraordinary.

 

Mechanical resistance properties

Mechanical resistance and adhesion tests have confirmed excellent adhesion and durability properties. Tests were conducted in compliance with norm DIN EN ISO 2409 (crosscut test), the ECCA - T 7 test (T-bend test) and the ECCA - T 6 trial (deep drawing test).

 

Corrosion Resistance

Continuous and rigorous lab tests keep corrosion resistance properties in constant check for all products derived from the treatment process.

Resistance trials to atmospheric oxidation due to the cationic phosphate coating followed by the oxidation stage, are performed through salt spray testing in compliance with norm ASTM B 117.