Sheffield’s SPI E-Nickel PTFE Plating Services:

SPI E-Nickel PTFE (polytetrafluoroethylene) is an electroless nickel composite plating process that co-deposits Teflon®, at 20 to 25% by volume as occluded particles in the plated coating. The sub-micron PTFE particles become firmly imbedded throughout the nickel deposit. Unlike topical coatings of Teflon®, this unique composite allows for renewed Teflon® at the surface even as the coating wears. This chemical plating process is specially designed to produce a consistent amount of uniformly dispersed PTFE throughout the nickel deposit in order to ensure optimum performance in high friction and non-lubricated applications. This coating can be stripped from parts with no attack of the base metal. Components with complex shapes are especially well served since the process provides a conformal coating. With a coating range of .00005″ to .001″ thick, the typical coating thickness of .0002″ – .0003″ is suitable for most applications.

The process yields a surface with the engineering properties of nickel and the additional lubricity of PTFE. As with standard electroless nickel, the deposit occurs via an autocatalytic chemical reaction so that a reliable, repeatable coating of uniform thickness is generated. This makes it possible to effectively coat parts with sharp edges, deep recesses, seams, threads, and complex geometries. In some cases, the use of the SPI E-Nickel PTFE provides lubricity sufficient to eliminate the use of other lubricants.

SPI E-Nickel PTFE coating can withstand temperatures of up to 500ºF.
The appearance of the plated finish is usually dull silver-gray, and can be used as a non- reflective coating for military applications. SPI E-Nickel PTFE can be applied over a variety of substrates including stainless steel, aluminum, copper, brass and other substrates.

This process conforms to AMS 2454.


SPI E-Nickel PTFE Features:

  • Plating thickness range of 0.0001 to 0.0050 inches
  • Typical coefficient of friction of 0.20 or lower
  • Masking for selective surface plating
  • Salt spray corrosion testing per ASTM B 117
  • Hydrogen Embrittlement relief baking in AMS 2750, Class 5 ovens
  • Thickness analysis using XRF instrumentation and standard metrology
  • Coating is FDA Approved and RoHS compliant
  • Provides dry lubrication, reducing sticking and galling
  • Excellent for low load and high friction applications
  • Provides excellent mold release, eliminating spray releases
  • Coating is hydrophobic which helps resist corrosion
  • Coating can be heat treated for increased hardness
  • Teflon content can be adjusted for special applications
  • Uniform coverage, even on complex shapes
  • Coating can be stripped from steel and aluminum without damage

Corrosion Resistance:

The hydrophobic properties of SPI E-Nickel PTFE contribute to its corrosion protection. These coatings resist attack from oils, solvents and acids. In addition the corrosion protection of this coating is enhanced by the high phosphorus content of the nickel matrix. At thicknesses of 0.5 to 1.0 mil, salt spray resistance of 96 to 240 hours per ASTM B-117 can be achieved. Additional protection can be achieved when SPI E-Nickel PTFE is deposited in a multi-layer package to form a unique duplex coating that helps components resist corrosion, wear, sticking and galling.


Capabilities & Capacities:

Rack Plating

For intricate shapes and geometries.

Wire Plating

For high volume mid-size parts, selective plating, intricate geometries.

Extensive In-house Quality and Analytical Laboratory

Chemical Analysis and Atomic Absorption, NDT, Adhesion per ASTM B 571.


Parts up to 2 feet.

*12% env fee applicable on all orders.

*Notice is hereby given that Sheffield Platers Terms and Conditions of sale, QP4.3F06 Rev D shall apply to this order and can be found here: Terms & Conditions

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