Creator of Composite Diamond Coating®

Surface Technology, Inc. is the creator and technical leader of CDC - Composite Diamond Coating®, an exceptionally engineered coating of electroless nickel with fine diamond. The synergy of these materials makes CDC an exceptionally hard and wear resistant coating. CDC conforms to even the most complex geometries and is an excellent replacement for chrome plating. STI makes CDC available via coating services from its production facility as well as chemical products sold directly, through a network of distributors, and by agreement with licensees worldwide.

Contact STI for One-Plate® Electroless Nickel solutions, the simplest EN in the world. These One-Plate® systems use just one “Q” solution for both bath make-up and replenishment. This innovation by STI overcomes the many shortcomings of using three A, B, and C solutions. Available in low, medium, high phosphorous, and composite EN varieties. Naturally, all are RoHS compliant.”

AddPlate® and NiPLATE™ 700


The 700 system is a composite silicon carbide, electroless nickel process designed to deposit a uniform composite with ultra-fine silicon carbide particles onto a great variety of metals, alloys, and non-conductors.

The 700 system is available in two packaging options to best meet your needs. The NiPLATE option provides the greatest convenience to the user, while the ADDPLATE® option provides the greatest economy for shipping and use. Both options produce the same properties and quality.

  • The NiPLATE 700 option is supplied in four liquid concentrates: NiPLATE 700 A, 700 B, and 700 D are used for make-up, and NiPLATE 700 A, 700 T, and 700 D are used for replenishment.
  • The ADDPLATE® 700 option is supplied in three liquid concentrates: ADDPLATE® 700 M is used for bath make-up with NiPLATE 700 D and standard nickel sulfate and sodium hypophosphite commodities, and ADDPLATE® 700 R is used for replenishment of the bath with NiPLATE 700 D and the same standard nickel sulfate and sodium hypophosphite commodities.

Some advantages of the 700 system are:

  1. Deposits with exceptional wear resistance surpassing chrome plating
  2. Corrosion resistance
  3. High plating rate
  4. Excellent stability and bath life
  5. Self-adjusting bath pH
  6. Ease of use comparable to conventional electroless nickel

The 700 system electroless nickel processes meet or exceed MIL-C-26074D and AMS 2404C.

Typical Deposit Properties (for EN alloy devoid of particles):

Phosphorous Content 6-9% by wt.
o as plated 550 VHN100
o heat treated @ 400°C for 1 hr. 1040 VHN100
Salt Spray (ASTM-B-117) 100 hrs.
Stress slightly tensile
Magnetic Properties slightly magnetic
Deposition rate 0.6 - 0.8 mil per hour

Preferred Operating Conditions:

  Range Optimum
Solution Temperature 83°- 90°C (180°-198°F) 87°C(188°F)
Solution pH 4.6 - 5.0 4.8
Bath Loading 0.3 - 0.7 ft2/gal 0.5 ft2/gal
Nickel Metal Concentration 0.80 - 1.05 oz/gal 0.95 oz/gal
H2PO2 Concentration 5.0 - 5.5 oz/gal 5.3 oz/gal
Agitation Mechanical or Filtered Air  

Composite electroless nickel systems are covered under one or more of Surface Technology, Inc.'s US Patents numbered 4,997,686, 5,145,517, 5,300,330, 5,863,616, 6,306,466, 7,744,685 and 8,147,601, and others depending on materials and use.

CLICK HERE for additional information on the NiPLATE 700 Coating

Consult a Surface Technology, Inc. Sales or Technical Service Representative for further information about this or any of our products and services.

A Leader
in the Metal Finishing Industry