Poly(ethyl vinyl ether) (PVE, CAS 25104-37-4) is a synthetic polymer-based lubricant base oil produced by cationic polymerization of ethyl vinyl ether. It combines excellent viscosity-temperature behaviour, low pour point and good compatibility with refrigerants and additives, making it a base stock for compressor oils, refrigeration oils, hydraulic fluids and specialty lubricants. Viscosity grades (e.g. ISO VG 32, 46, 68 at 40 °C) can be customised to customer requirements.
Specifications (PVE 68)
| Parameter | Value |
|---|---|
| Appearance | Colorless to light yellow transparent liquid |
| Kinematic viscosity (40 °C), mm2/s | 65-71 |
| Residual solvent | ≤0.01 |
| Water, wt% | ≤0.05 |
| Density (15 °C), g/cm3 | 0.980-1.000 |
| Acid value, mg KOH/g | ≤0.03 |
| Saybolt color | ≥15 |
| Dimer (GC), % | <0.1 |
Custom Viscosity
PVE base oil can be customised to target kinematic viscosities at 40 °C (e.g. ISO VG 32, 46, 68 and other grades) by controlling molecular weight in the polymerization step. Please contact us with your required viscosity grade and application.
Applications
- Synthetic lubricant base oil – compressor oils, refrigeration oils and vacuum pump oils.
- Hydraulic and gear oil base stock with enhanced viscosity-temperature behaviour.
- Additive carrier oil and specialty lubricant component.
Storage and Packaging
Store in sealed drums in a cool, dry, ventilated area, away from ignition sources. Standard packaging: 200 kg steel drums or 1000 kg IBC tote.
FAQ
What viscosity grades are available? ISO VG 32, 46 and 68 are standard; other viscosities can be customised on request.
Is PVE suitable for refrigeration oils? Yes – PVE shows good compatibility with refrigerants and low pour point, suited to refrigeration and compressor applications.
