NP3® (Electroless Nickel / PTFE)
Process Specifications
- AMS 2454
- GPS 3117-1
- M7019883
- HP4-90
- EMS 52545
- P.S. 10-27
- 70B995447
All NP3® coatings are RoHS compliant.
Aerospace Quality Systems
Chemical Processing
About NP3®
Electroless Nickel with PTFE (EN / PTFE)
NP3 (Electroless Nickel / PTFE) and NP3+ (Electroless Nickel / PTFE with a High Phosphorus Electroless Nickel undercoat) are Durable, self-lubricating Nickel / PTFE composite coatings that can support a wide range of engineering applications. With a 0.1 coefficient of friction and up to 500 hours salt spray resistance this thin, hard and lubricious coating combines a low coefficient of friction with wear resistance, electrical conductivity and increased protection from corrosion. The coatings autocatalytic (electroless) deposit reduces the thickness variations that are associated with electrolytic deposits and creates a thin uniform coating that is accurately deposited across complex geometries.
With 36 years of experience providing the NP3 (EN/PTFE) plating, Coating Technologies is an industry leader. You can trust your EN / PTFE coating requirements to our experienced qualified staff.
Contact us today for coating technical assistance.
NP3® Technical Data
NP3® EN / PTFE Deposit Performance Facts
| Composition | Nickel | 80 – 84% by weight |
| Phosphorus | 9 – 11% by weight | |
| PTFE | 7 – 9% by weight (19–25% by volume) |
|
| Density | 6.5 g/cm3 | |
| Hardness | As-Plated | 300-350 HV100 (32-35 RC) |
| Heat Treated@300°C for 4 hrs | 400-450 HV100 (42-46 RC) |
|
| Melting Temperature | Nickel Phosphorus Alloy | 1650°F, 900°C |
| PTFE | 620°F, 325° C | |
| Co-Efficient of Friction | LFW-1, ASTM D-2714 | |
| Wet (white oil) | .07 – 0.10 | |
| Dry | 0.1 – .2 | |
| Wear Resistance | Excellent, Mild Load/Sliding Wear Conditions | |
| Abrasion Resistance | Taber Abrasive Test | CS – 10 Wheel; 1000g load Weight loss, mg/1000 cycles 20 |
| Corrosion Resistance | ASTM B | 117 Salt Spray |
| 0.3 mil | 96 hours | |
| 1.0 mil | 500 hours | |
| Electrical Resistance | Ohms Per Square | 0.06 ohm (0.84 mil deposit) |
Additional Services
- Masking
- Abrasive blasting, sand or glass
- Pre-plate Stress Relief and Hydrogen Embrittlement Baking
- Expediting
- Aluminum Oxide
- Glass Bead