Medthin™ 42 DLC
DLC coating for surgical instruments
Medthin™ 42 DLC is a multilayer coating with a Chromium Nitride (CrN) base layer followed by a thin interlayer made of WCC and a top DLC (carbon) layer. The base layers confer to Medthin™ 42 DLC a high load carrying capacity and improved scratch resistance whereas the top layer in DLC confer high hardness and low friction making this coating the superior choice for coating surgical instruments.
Technical Data |
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Material Description |
Multilayer DLC |
Applicable on the following materials¹ |
all Stainless Steels, Titanium and Aluminium Alloys |
Technologies of deposition |
PVD and PACVD |
Colour |
Black |
Thickness [µm] |
1 to 5 |
Structure |
Amorphous Diamond Like Carbon (top layer) on crystalline Cr+CrN+WCC base layers |
Oxidation Resistance |
Excellent resistance to chemical oxidation as far as utilization temperature remains <300°C |
Cleaning and Sterilization Resistance |
Very High, all methods allowed |
Antireflection |
80% visible light absorption |
Electrical Conductivity |
Poor Conductor |
Antibacterial properties |
Not Measured |
Nanohardness [GPa] |
20 to 28 |
Young Modulus [GPa] |
180 to 240 |
Friction coefficient² |
0.1 |
Adhesion Scratch Test, LC3 [N] |
>30N |
Adhesion Rockwell or Mercedes test³ |
Class 1,2, HF1-3 |
Roughness (as coated) [nm] |
~20 |
Corrosion resistance – Neutral Salt Spray |
Max 2 hours |
Biocompatibility data for instruments |
Passed ISO 10993-5, ISO 10993-10, ISO 10993-11 |
MSDS |
Delivered per request |
MAF at FDA in the USA |
- |
Most popular applications |
High load carrying capacity, very high scratch resistance and low friction |