Issue Date: June 2025
Revision: 01
Doc No: ACS-TDS-AIR-PAO
Aerosil Air PAO
Synthetic PAO Air Compressor & Vacuum Pump Oil
1. Product Description
2. Typical Physical & Chemical Properties
Typical values — not to be used as specification limits. Test methods per ISO/ASTM/DIN standards.
| Property | ISO 32 | ISO 46 | ISO 68 | ISO 100 | ISO 150 |
|---|---|---|---|---|---|
| Kinematic Viscosity @ 40°C (mm²/s) | 28.8–35.2 | 41.4–50.6 | 61.2–74.8 | 90–110 | 135–165 |
| Kinematic Viscosity @ 100°C (mm²/s) | 6.1 | 8.0 | 10.8 | 14.5 | 19.2 |
| Viscosity Index | ≥ 140 | ≥ 142 | ≥ 145 | ≥ 148 | ≥ 150 |
| Density @ 15°C (kg/m³) | 848 | 852 | 856 | 860 | 864 |
| Flash Point COC (°C) | ≥ 220 | ≥ 228 | ≥ 235 | ≥ 242 | ≥ 248 |
| Pour Point (°C) | ≤ −54 | ≤ −51 | ≤ −48 | ≤ −45 | ≤ −42 |
| Carbon Residue (Conradson, %) | ≤ 0.01 | ≤ 0.01 | ≤ 0.01 | ≤ 0.01 | ≤ 0.01 |
| Copper Corrosion (3h/100°C) | 1a | 1a | 1a | 1a | 1a |
| Oxidation Stability (TOST, h) | ≥ 4000 | ≥ 4000 | ≥ 4000 | ≥ 4000 | ≥ 4000 |
| Foam Tendency Seq I/II/III (ml) | ≤ 10/0/10 | ≤ 10/0/10 | ≤ 10/0/10 | ≤ 10/0/10 | ≤ 10/0/10 |
| Air Release (50°C, min) | ≤ 4 | ≤ 5 | ≤ 6 | ≤ 8 | ≤ 10 |
| Rust Protection (ASTM D665 A) | Pass | Pass | Pass | Pass | Pass |
3. Performance Features & Benefits
- Fully synthetic PAO base oil — inherently superior oxidation and thermal stability vs. mineral oil
- Ultra-low carbon residue (Conradson ≤ 0.01%) — virtually eliminates valve deposits and discharge line carbonisation
- Very high viscosity index (VI ≥ 140–150) — consistent viscosity across wide temperature range (−50°C to +150°C)
- Outstanding low-temperature fluidity — reliable cold-start performance down to −54°C (ISO 32)
- Extended drain intervals up to 8000 h (rotary screw) — significantly reduces oil consumption and maintenance costs
- Excellent anti-wear protection — forms durable tribochemical film on compressor rotors, bearings, and vanes
- Superior rust and corrosion protection for ferrous and non-ferrous metals
- Miscible with other PAO-based compressor oils; not recommended for mixing with mineral oils
- Compatible with standard compressor seals (NBR, FKM, PTFE)
4. Applications
- High-duty rotary screw air compressors requiring extended drain intervals (≥ 8000 h)
- Reciprocating compressors operating at high discharge temperatures (> 160°C)
- Rotary vane compressors and vacuum pumps in continuous-duty service
- Oil-sealed vacuum pumps in chemical, pharmaceutical, and food processing industries
- Compressors operating in extreme cold environments (start-up at ≤ −40°C)
- Applications where mineral oil drain intervals are insufficient or fire risk is a concern
5. Approvals & Specifications Met
6. Packaging
- 20 L Pail
- 208 L Drum
- 1000 L IBC
Custom pack sizes available on request.
7. Storage & Handling
Store in a cool, dry, well-ventilated area. Keep containers sealed to prevent moisture ingress. Shelf life: 48 months in original sealed container.
Avoid prolonged skin contact. Use nitrile gloves and safety glasses. Do not mix with mineral compressor oils. Refer to SDS for full guidance.
8. Health, Safety & Environment
A Safety Data Sheet (SDS) is available upon request and must be consulted before use. This product is not classified as hazardous under CLP/GHS regulations at normal operating conditions. Dispose of used oil in accordance with local environmental regulations. Do not discharge to drains, water courses, or soil. Refer to SDS for full environmental and health precautions.
Disclaimer: The information contained in this Technical Data Sheet is based on tests believed to be reliable and is offered in good faith. The data is typical of the product and should not be used to establish specification limits. Aerosil Chemsol Specialties B.V. reserves the right to modify product formulations and specifications without prior notice. Users should verify suitability for their specific application. Aerosil Chemsol Specialties B.V. accepts no liability for any loss or damage arising from the use of this information.