Nickel PTFE Coating is a co-deposition process of Electroless Nickel combined with PTFE particles. Ni-PTFE treatment includes 20 to 30% of PTFE (by volume); the deposit has excellent release characteristics and uniform particle incorporation.
NICKEL PTFE SYSTEM PHOSPHORUS: 10-12% (WEIGHT %) CONTENT
Nickel PTFE adds to the already sleek surface of electroless nickel, yielding a very low friction surface. It consists of co-depositing microscopic beads of teflon (up to 20%) with electroless nickel.
This coating offers an excellent solution for sticking, galling or drag problems with moving parts and heated seal surfaces in automotive or machinery applications.
For molds and dies, it improves the release or anti-stick properties.
Nickel PTFE plating eliminates the need for liquid lubricants and reduces deposit hardness.
Its characteristics include:
- 33 RCH as plated;
- 54 RCH post-heat treatment;
- Deposit density of 6.3-7.1 g/cm3
- Non-magnetic property
- Coefficient of friction: 0.1
- Compliance with AMS 2405, ASTM B 733 specification requirements.
Questions & Answers
What is electroless nickel plating with PTFE?
Electroless nickel when enhanced with PTFE particles creates a very low coefficient deposit (0.1-0.2). The particles are evenly dispersed in a EN matrices.
The deposit contains between 4-10 % by weight or up to 30 % by volume PTFE.
Friction, lubrication, bearing, hydrodynamics are all properties that make EN/PTFE a very attractive coating for many applications.
What are some of the EN/PTFE applications?
Electroless Nickel- PTFE coatings can be used for a variety of applications. The material’s low-flammability, non-stick properties, very low coefficient of friction as well as very low reflectivity. It has been used in blow molding, thermoforming, container molds, as well as automotive parts, high quality camera components and in many anti galling applications.
The low reflectivity finish of the NI PTFE HAS BEEN WIDELY used in military applications.
In the automotive industry, the parts that are coated with EN/PTFE include piston rings, valves, injection nozzle, carburetors.
What geometry is possible?
It is possible to effectively coat parts with sharp edges, deep recesses, seams, threads, and complex geometries the same as electroless nickel. In some cases, the lubricity of the electroless nickel combined with PTFE is sufficient to eliminate the use of other lubricants, for example riffle bolts.