The process of thermal diffusion zinc coating DiSTeK™ is a new environmentally friendly process. The process is designed for coating of small to medium-sized items (including threaded) made of steel and cast iron requiring the coating thickness above 20 micron, and operating in the open air.
The DiSTeK™ technology is based on the method of chemical thermal zinc saturation of surface of steel products in powder environment.
The thermal diffusion zinc coating has the following advantages:
|High corrosion resistance||High corrosion resistance|
|Environmental friendly||Dry process, chromate free, does not contain toxic elements, ecological clean|
|Minimal pre-treatment required||Oily, greasy and 40% rusty surfaces can be coated with no pre-treatment|
|Low diffusion temperature||360°C - 470°C|
|Passivation||Provides excellent free-air conservation, with non-toxic materials|
|Thickness of coating||15-120µ|
|Strong adhesive coating||No peeling or cracking|
|High abrasive resistance||Micro-hardness up to 1636 HV, prevents nut seizure in stainless steel bolts|
|Uniform coating||Even on tubes and internal surfaces|
|No Zinc build up||No grinding of excess zinc|
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