dialong®-G is a the ta-C DLC coating deposited at a temperature below 100 °C with a standard thickness of 0.5 µm. The dialong®-G coating has a sp3 percentage (typical of the natural diamond) of about 75% and a hardness of about 47 GPa (4800 HV). dialong®-G offers good performance for tools processing both non-ferrous and wood materials.  

With dialong®-G tools with diameters up to 200 mm and lenghts up to approx. 500 mm can be coated.




VDI abbreviation ta-C
Processus PVD Arc
Structure Amorphous
sp3 fraction [%] 75
Color Rainbow
Thickness 0.5 µm
Max.operating temperature [°C] 500
Hardness [GPa] 48
Friction coefficient 0.1

All provided data are approximate values, depend on the application, environment and test conditions. Coating hardness HIT [GPa] measured by nano indentation according to ISO 14577. Hardness can be adapted to the application. Friction coefficient (dry) compared to the steel determined by ball-on-disc dry test with a steel sphere according to ASTM G99. During the running-in the indicated values may be exceeded. Maximum service temperature [° C] These are approximate values.

High thermal stability up to 500 ° C: possibility of MQL and dry processing.
dialong®-G has proven effective on cutting tools for milling, drilling and boring of non-ferrous materials and non-hard wood. With dialong®-G are processed:
- aluminum alloys up to 10% of Si
- some composite materials
- PMMA, epoxy resins
- various types of wood essences