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.

AddPlate® and NiPlate™ 200


The 200 system is an economical, corrosion resistant high phosphorous electroless nickel process designed to deposit a uniform, nickel-phosphorous alloy onto a great variety of metals, alloys, and non-conductors.

The 200 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 200 option is supplied in three liquid concentrates: NiPLATE 200 A and 200 B are used for make-up, and NiPLATE 200 A and 200 C are used for replenishment.
  • The ADDPLATE® 200 option is supplied in two liquid concentrates: ADDPLATE® 200 M is used for bath make up with standard nickel sulfate and sodium hypophosphite commodities, and ADDPLATE® 200 R is used for replenishment of the bath with the same standard nickel sulfate and sodium hypophosphite commodities. 

Some advantages of the 200 system are:

  1. Corrosion resistance in acid environments
  2. Neutral salt spray resistance of 1000 hours
  3. A semi-bright deposit that will pass the nitric acid test
  4. A pit free deposit of 5 mils or more
  5. Excellent stability and bath life
  6. Compressive stressed deposit
  7. Non-magnetic properties

The 200 system electroless nickel processes meet or exceed MIL-C-26074D and AMS 2404C.

Typical Deposit Properties:

Phosphorous Content 10-13% by wt.
o as plated 550 VHN100
o heat treated @ 400°C for 1 hr. 900 VHN100
Salt Spray (ASTM-B-117) 1000+ hrs.
Stress compressive
Magnetic Properties non-magnetic
Deposition rate 0.3 - 0.4 mil per hour

Preferred Operating Conditions:

  Range Optimum
Solution Temperature 85°- 92°C (185°-198°F) 88°C(190°F)
Solution pH 4.6 - 5.2 4.8
Bath Loading 0.3 - 1.0 ft2/gal 0.6 ft2/gal
Nickel Metal Concentration 0.65 - 0.85 oz/gal 0.8 oz/gal
H2PO2 Concentration 3.5 - 4.5 oz/gal 4.0 oz/gal
Agitation Mechanical or Filtered Air  

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