Medthin™ 01 TiN

A reference coating for implants

Medthin 01 coating is particularly suitable for improving articulating joints such as those of “Coating on UHMWPE” where polyethylene wear and ion release from substrates (CoCr, SS, TAV, etc)  is strongly reduced. The coating is applied with thickness of about 5µm and it has adhesion strength to metal substrates higher than 1.5GPa leading to pristine abrasion resistance measured under knee and hip simulator tests compliant with ISO 14243 and ISO 14242 respectively. Titanium Nitride (TiN) is deposited with latest generation technologies showing a polycrystalline cubic structure with a fine and very dense structure,  roughness (Ra) values below 0.05µm, ideal for articulating zones. The coating coverage is rather uniform on external surfaces whereas for inner surfaces a Ionbond proprietary technology can be applied in some cases. Ionbond can currently deliver coating service of “Medthin 01 TiN on Implants” from America, Europe and Asia and the coating properties/characteristics have been filed in a FDA master file (MAF) number 1413. The MAF can be referred upon request and common agreement with Ionbond.

Technical data



Titanium Nitride

Applicable on following implant material

Titanium, TAV, CoCrMo, 316 LVM, all SS





Thickness, μm

Hardness, GPa

27 to 31

Phase composition

Cubic, polycrystalline

Surface texture, Ra


Coating coverage

Mainly external surfaces

Masking partial zones or over porous coat



Not noticed in serum

Adhesion strenght, MPa


Wear (abrasion) resistance, coating against UHMWPE


Porosity density, n/mm² and pore size, μm

PVD Arc (<350, 1) or CVD (<50, 0.05)⁴

Reduction of allergic potential (CoCrMo, FeCrNi)


Surface wettability of TiN

Similar to mirror polished CoCrMo

Thermal oxidation resistance


Chemical oxidation resistance

Resistance to PH>7, weaker in peroxide solutions PH<7

Resistance to sterilization

All methods allowed

Implant applications

Othopaedic, spine & trauma

²higher coating thickness is possible under request
³internal surfaces are also possible to coat, please contact us
⁴pores are not through coating thickness. Few pores through coating thickness may occur in PVD arc