Tag Archive for self lubricating metal

Slippery Nickel: Electroless Nickel PTFE Plating

Electroless nickel PTFE, otherwise known as slippery nickel, is a composite nickel/PTFE coating that offers a huge range of benefits to a variety of industries. The main reason that nickel PTFE is so popular is due to its properties of low friction and self lubrication, making it a great choice for sliding wear applications and other instances where conventional lubricants cannot be used.

The Co-Deposition of Electroless Nickel PTFE

During the co-deposition process of nickel PTFE, Teflon particles are plated along with the electroless nickel and become part of the plated coating itself. This technique ensures that the plated coating has high lubricity throughout the life of the plated part, because as the coating wears, PTFE particles are exposed continuously. That means that the Teflon particles are present throughout the entire thickness of the coating.

Release Properties and Uniform Coverage

Nickel PTFE improves the “release” or anti stick properties of molds and dies due to its self lubricating properties. It also increases the efficiency of, and reduces the sound made by slides, bearings and cylinder or piston assemblies. This property also facilitates the reliable operation of moving parts when they are continuously exposed to solvents or are working in cryogenic temperatures. Nickel PTFE provides an exceptionally uniform coverage, including corners, threads and bores. There’s also no need for post-plating finishing.

Common Applications of Nickel PTFE

A comprehensive list of the common applications of nickel PTFE is published below.

  • Rubber and plastic molds
  • Transmission components
  • Core pins
  • Couplings
  • Slides
  • Frozen food molds
  • Camera shutters
  • Valve stems
  • Rotating cores
  • Fiber and yarn guides
  • Gears
  • Hydraulic cylinders
  • Fuel system components
  • Clutch components
  • Tablet punches
  • Pistons
  • Pump rotors
  • Bearings
  • Spray nozzles
  • Air caps
  • Security bolts
  • Pneumatic equipment
  • Hydraulic equipment
  • Shafts

What Substrates can Nickel PTFE be Applied to?

Nickel PTFE can be applied to a variety of substrates including copper alloys, titanium, aluminium, mild steel and stainless steel.

If you are looking for a metal coating that is self lubricating, corrosion resistant and wear resistant, Ni-PTFE is the perfect solution. Call us on 0845 224 3571, email us at info@nitec-enp.co.uk or visit the contact page on our website to make an inquiry.

Friction Free, Self Lubricating Electroless Nickel PTFE Coatings

nickel ptfe plated component

The PTFE composite coating of electroless nickel is known for its self lubricating properties and exceptional resistance to friction.

By combining the high wear resistant hardness, uniform coating and excellent adhesion of electroless nickel with the self lubricating properties of PTFE, it is a perfect surface treatment for components and assemblies that cannot use conventional lubricants.

Prevent Calcium Scale Build Up with PTFE

PTFE plating provides a great release from calcium that is often found in hard water areas. In addition to the corrosion resistance of the plated layer, the common problems of the build up of scale on a component can be avoided. This is especially useful when an electroless nickel PTFE coating is used on food processing equipment, heating elements and spray nozzles, as it prevents the build up of this calcium deposit which could hinder the effectiveness of the equipment.

The Process of Electroless Nickel PTFE Plating

During the process of electroless nickel PTFE plating, a coating is applied that consists of an autocatalytically applied nickel/phosphorus matrix containing submicronic particles of polytetraflouroethylene. PTFE is actually fairly soft in its natural form, but when suspended in nickel, it is very durable.

This means that components with PTFE coatings are hard enough to resist corrosion and abrasion, and also have friction resistance from the PTFE, which ensures that parts have a long working life. This coating also has the benefit of producing a uniform coating which covers all surfaces of the part, even those with especially intricate geometries.

Key Properties for Electroless Nickel PTFE

  • Low Friction
  • Self Lubrication
  • Corrosion Resistance
  • Wear Resistance
  • Uniform Deposit

Typical Applications Electroless Nickel PTFE

  • Food processing equipment
  • Sorting equipment
  • Injection Molds
  • Pump rotors
  • Titanium bearings
  • Heating elements

If you are looking for a metal coating that is self lubricating, corrosion resistant and wear resistant, Ni-PTFE is the perfect solution. Call us on 0845 224 3571, email us at info@nitec-enp.co.uk or visit the contact page on our website to make an inquiry.