NPI BONDED SOLID FILM LUBRICANT PROPERTIES
The table below lists the properties of the four lubricants currently marketed by NPI.
| NPI-14 | NPI-16 | NPI-425 | Vitro-Lube NPI-1220 | ||
| Base Coat | Top Coat | ||||
| Pigments | MoS2 and graphite |
MoS2 | MoS2 | MoS2, Graphite (proprietary) |
MoS2, Graphite |
| Binder | Phenolic | Phenolic | Polyimide | Ceramic | Phenolic |
| Solvent | Denatured Alcohol |
Denatured Alcohol |
Ethyl Alcohol | Ethyl Alcohol | Denatured Alcohol |
| Cure Temperature |
1 Hour at +300°F |
1 Hour at +300°F |
1 Hour at +300°F and 1 Hour at +575°F |
1 Min. After Reaching +975°F |
1 Hour at +300°F |
| Total Thickness (inches) | 0.0003 to 0.0005 |
0.0003 to 0.0005 |
0.0002 to 0.0004 |
0.0004 to 0.0006 |
0.0002 to 0.0003 |
| Outgassing TWL-% |
0.85 | 0.91 | 0.82 | 0.0039 | |
| Outgassing VCM-% |
0.0115 | 0.005 | <0.01 | 0.0147 (Both Base & Top Coat) |
|
| Solar Absorptance | 0.827 | ||||
| Total Normal Emittance |
0.823 | ||||
| Density-#/cu. in. | 0.072 | ||||
| Surface Restivity Ohms x 106 (per ASTM 257) |
11.56 | 50.65 | |||
| Temp. Limitation* | +300°F | +300°F | +500°F | +700°F | +700°F |
| *This temperature limitation is for long term usage. |