Electroless (chemical) Nickel-Phosphorus Plating is the most important catalytic process used in the last two decades. Licco`s nickel-phosphorus coating have different content of phosphorus. we have three types of coatings: low phosphorus coatings (2-5% P by weight), medium phosphorus coatings (6-9% P by weight) and high phosphorus coatings (>10.5% P by weight). The processes are done in working tanks with capacity of 2000 L and 3m length
Some of the most important characteristics of these coatings are the high ware and corrosion resistance, excellent uniformity, great range of thicknesses, excellent mechanical and physical properties, good solder ability and superficial lubrication.
The plating process is based on a redox reaction where a reducing agent, sodium hypophosphite (NaH2PO2)is oxidized and the nickel ions (Ni2+ are reduced at the surface of the material. The process is called autocatalytic because once the first layer of nickel is plated; this acts as a catalyst for the rest of the process. Consequently there is a lineal ratio between the reaction time and the thickness of the coating.
All these characteristics account for the application of the nickel-phosphorus coatings in a variety of industrial sectors as:
chemical and petrochemical industry
medical and pharmaceutical industry
|Electroless Nickel Coating Statistics|
|Tensile Strength (ASTM D1708)||4000 – 5000 psi|
|Elongation (ASTM D1457)||50%|
|Impact Strength (ASTM D256)||13 ft – lb/in|
|Hardness (ASTM D2240)||60 – 90 HB (shore D)|
|Abrasion Resistance (Tabor)||> 15 mg|
|Coefficient of Friction (ASTM D1894)||.15 – .35 static|
|Dielectric Strength (ASTM D149)||1400 volts per mil|
|Use Temperature||-100°F to 500°F max|
|Chemical Resistance (ASTM D543)||Good|
|Salt Spray Resistance (ASTM B117)||Excellent|
|Water Absorption (ASTM D570)||< .03 %|
|Thickness||.0008″ – .002″|
Range Of Coatings
We provide worldwide quality coatings to various sectors including but not exclusive to industrial, oil & gas, oil-refining, petrochemical, marine, construction, mining, engineering, electronics and the military.
electroless nickel dispersion coatings serve to increase or reduce friction, minimize wear and protect the surfaces.
Fluoropolymer coatings are blends of high performance resins and fluoropolymer lubricants.
when applied to blasted steel provide excellent corrosion protection, weathering protection.
a unique abrasion resistant coating that protects by binding ceramic particles to a resin system.
Phosphate coatings are a crystalline conversion coating for steel ferrous metal substrate.
commonly used in applications where load carrying capacity, operating pressure is the primary concern.
If you have any questions or if you just want to talk, feel free to contact us.