Royco 885 is a light, synthetic based general- purpose instrument lubricating oil-containing additives for oxidation and corrosion inhibition, antifoaming, and rust protection.
This fluid has a very low volatility and exhibits exceptional low temperature performance as well.
Applications:
Royco 885 is intended for use in aircraft instruments, electronic equipment and where low evaporation characteristics are required for both low and high temperature applications, including where corrosion and oxidation resistance may be required.
Uses include aircraft air cycle equipment as well as other instruments and accessories.
Features:
• Diester Based lubricant
• Oxidation, corrosion and rust inhibited
• Very low evaporation rate
Benefits:
• Exceptional wide temperature application
• Protections metallic components
• Long-life lubrication and extended re-lubrication intervals
Approvals and Specifications:
Royco 885 is qualified to and meets the requirements of MIL-PRF-6085D as well as Boeing Material Specification: BMS 3-7. Military Symbol OAI, NATO Code No. 0-147, UK Joint Service Designation OX-14.
Royco 885 is designated as a P-17 contact rust preventive under MIL-STD-2073-1E.
Limitations:
The synthetic based oils used in this product may soften certain paints and elastomers.
Do not use with neoprene or natural rubber elastomers.
Components should be evaluated for compatibility if there is any question.
PROPERTIES | TEST METHOD | ROYCO® 885 |
Flash Point, °C (°F) | ASTM D92 | 220 (428) |
Acid Number, mg KOH/gm | ASTM D664 | 0.13 |
Trace Sediment, mg/200 ml | Spec. | 1.0 |
Evaporation Loss, 205°C, 6.5 hrs., % | ASTM D972B | 22 |
Kinematic Viscosity, cSt | ASTM D445 | |
@ 100°C | 3.1 |
@ 40°C | 12.05 |
@ -51°C | 7,675 |
Viscosity Stability, -51°C, 6 hrs., % change | ASTM D2532 | 0.2 |
Lead Corrosion, 325°F, 1 hour, g/m2 | FTM 5321 | -0.02 |
Silver-Bronze Corrosion, 232°C | FTM 5305 | |
Silver, g/m2 | 0.00 |
Bronze, g/m2 | 0.13 |
Accelerated Storage Stability, g/m2 | Spec | |
48 hrs, 110°C | -0.05 |
168 hrs, 110°C | -1.4 |
Elastomer Compatibility | FTM 3604 FTM 3432 | |
NBR "H" Rubber, 70°C/168 hrs, % | 32 |
“FA” Rubber, 175°C/72 hrs., % Swell | 8 |
Tensile Strength Change, % | -18 |
Elongation Change, % | -21 |
Hardness Change, % | -8 |
Static Foam Test | FTM 3213 | |
Foam Volume, ml | 27 |
Foam Collapse Time, seconds | 10 |
Oxidation Corrosion Test, 200°C, 96 hrs. | ASTM D4636 | |
Metal Coupon Weight Change, mg/cm2 | |
Aluminum | -0.05 |
Silver | -0.03 |
Bronze | 0.05 |
Steel | 0.01 |
M-50 (steel) | 0.02 |
Magnesium | 0.01 |
Titanium | 0.01 |
Viscosity Change, 40°C, % | 11.2 |
Acid Number Change, mg KOH/g | 1.1 |
Insolubles, mg/100 ml | 0.1 |
Density, 15°C, g/ml | Report | 0.952 |
