CrNOX – High-Performance Coating

For Plastics
Processing.

CrNOX is our ultimate solution for the most demanding requirements in plastics processing. Its specifically engineered structure combines increased hardness, excellent corrosion resistance, and a low-reactivity surface. Due to its broad material compatibility, CrNOX is suitable as a universal solution for nearly all thermoplastic and thermosetting polymers.

CrNOX – High-Performance Coating

For Plastics Processing.

CrNOX is our ultimate solution for the most demanding requirements in plastics processing. Its specifically engineered structure combines increased hardness, excellent corrosion resistance, and a low-reactivity surface. Due to its broad material compatibility, CrNOX is suitable as a universal solution for nearly all thermoplastic and thermosetting polymers.

The high-performance chromium based coating CrNOX by Eifeler Austria

CrNOX – Chromium Oxydnitride Performance Parameters.

CrNOX – Chrom­ium Oxydnitride Performance Parara­meters.

Hardness

2.500 ± 250 HV

Maximum working temperature

700 °C / 1.290 °F

Friction coefficient ageinst steel

0,3

Coating thickness

3 – 6 µm

Colour

rainbow

Highest protection at maximum requirements - Eifeler PVD coating CrNOX

CrNOX – Preferred Areas of Application

  • Plastic injection molding
  • Blow molding
  • Extrusion toolings/dies
  • Tools for fiber-reinforced plastics
  • Processing of corrosive or additive-containing polymer melts
  • Mold inserts with increased release requirements

Ideal for High Loads & Aggressive Compounds

At the high end of our chromium-based coating systems, CrNOX stands out simply because of its characteristic rainbow coloration. This is due to the integrated oxide top coat. As a result, CrNOX provides reliable protection against corrosive attack on tool steel as well as mechanical wear caused by fiber-reinforced or additivecontaining polymer melts. And is therefore particularly well-suited for use with fiber-reinforced plastics.

Another advantage: The reduced tendency for adhesion and improved release characteristics enhance process stability and productivity!

Benefits and Properties of CrNOX

  • Increased hardness compared to CrN and CrCN
  • Very high protection against corrosive attack
  • Very high scratch and wear resistance
  • Low coefficient of friction
  • Only minimized deposit formation & reduced adhesion 
  • Excellent demoldability
  • Low-reactivity surface
  • Universally applicable for nearly all types of plastics

Is CrNOX the right coating for your area of application? Or would one of our numerous other hard coatings be even better suited for your individual requirements?

Which coating system is the perfect match? We will gladly advise you!