Lubricant Additive Packages
CheMost supplies compressor, turbine and industrial oil additive packages — ashless rust-and-oxidation (R&O) concentrates a blender adds to base oil to make a finished industrial oil for rotating and high-temperature equipment.
These are additive components for finished-lubricant formulators — not finished industrial oils. This is not one product on a ladder: it is four genuinely different oils, each defined by a different enemy — an air compressor, a steam/gas turbine, a heat-transfer (thermal oil) system and a machine-tool slideway. What they share is ashless R&O chemistry: clean, long-life, with no high-ash detergent or EP that would foul tight clearances. Choose by equipment below, then request the data sheet.
The Selection Principle: The Equipment Defines the Enemy
These four oils are not interchangeable, because each piece of equipment fails in a different way. The package is chosen by the application, not by a performance number:
- Compressor — oxidation and deposits at hot discharge. Air-compressor oil runs hot; the enemy is carbon on discharge valves (reciprocating) and varnish in tight rotor clearances (rotary screw). It needs strong oxidation stability and clean, ashless chemistry — not detergency. (PA6000)
- Turbine — decades of oxidation life, plus air and water release. A turbine oil is a system oil protecting bearings and the control/governor system while managing heat, air and water over very long drains. The enemy is oxidation, varnish and poor air/water separation — so R&O life, demulsibility and air release dominate, not EP. (PA6001)
- Heat transfer — thermal stability without coking. A thermal-oil system runs at very high bulk temperature; the enemy is thermal cracking and coke laying down on heat-exchanger surfaces. The package is a light antioxidant system that protects the fluid, not an EP or detergent load. (PA6032)
- Slideway — stick-slip-free motion. A machine-tool way lubricant must give smooth, judder-free low-speed table motion (a low difference between static and dynamic friction) and stay compatible with a shared hydraulic circuit. The enemy is stick-slip, not wear alone. (PA6077)
So you select by equipment → its dominant failure mode → the matching ashless R&O (or slideway) chemistry → ISO viscosity grade. The four packages below put that into practice.
What These Packages Do
The common core is ashless rust-and-oxidation chemistry, carried at a light treat rate, deliberately without metallic detergents that would deposit on valves, rotors or control systems:
- Oxidation stability & deposit control. Antioxidants extend oil life and suppress varnish and sludge across long drains at high temperature.
- Rust & corrosion protection. Rust inhibitors and yellow-metal passivators protect ferrous and non-ferrous surfaces in humid, water-exposed service.
- Demulsibility, air release & foam control. The oil sheds water quickly, releases entrained air and resists foam — essential for turbine and compressor reliability.
- Application extras. The slideway package adds friction modification for stick-slip-free motion and mild anti-wear; the heat-transfer package is tuned for thermal, not mechanical, stress.
The CheMost Range — Choose by Equipment
Four ashless industrial packages, one per application. Open a grade to request its data sheet.
PA6000 — Air compressor (ashless)
For: Reciprocating & rotary-screw air compressors.
Best for: Ashless compressor oils that control carbon on discharge valves and varnish in screw-rotor clearances, with strong oxidation stability at high discharge temperature.
Request TDS & Sample →PA6001 — Steam turbine (ashless R&O)
For: Steam & hydro turbine bearing / governor oil.
Best for: R&O turbine oils needing long oxidation life, fast water separation and air release — turbine-generator sets, hydro turbines and their reduction gears and governors. Mineral Group I/II.
Request TDS & Sample →PA6032 — Heat transfer (thermal oil)
For: Closed-loop thermal-oil systems.
Best for: Heat-transfer (thermal oil) fluids that must resist thermal cracking and coking on heat-exchanger surfaces; a light antioxidant system that extends fluid life. Max bulk temperature depends on the base oil.
Request TDS & Sample →PA6077 — Slideway / hydraulic composite (ashless)
For: Machine-tool ways + shared hydraulic circuit.
Best for: Composite slideway-hydraulic fluids where one oil lubricates the machine ways and the hydraulic circuit — friction-modified for stick-slip-free motion, with hydraulic anti-wear, ashless throughout.
Request TDS & Sample →Specifications — All Grades data on request
The concentrate fingerprint for each ashless package — viscosity, flash, acid number and copper-corrosion behaviour — published per grade as test data is confirmed. Oxidation life (TOST / RPVOT), demulsibility and air release are reported on each grade’s data sheet. Request the current data sheet.
| Property | Method | PA6000 | PA6001 | PA6032 | PA6077 |
|---|---|---|---|---|---|
| Appearance | Visual | — | — | — | — |
| Kinematic viscosity @100 °C, mm²/s | ASTM D445 | — | — | — | — |
| Flash point (COC), °C | ASTM D92 | — | — | — | — |
| Total acid number, mgKOH/g | ASTM D974 | — | — | — | — |
| Nitrogen, wt% | ASTM D5291 | — | — | — | — |
| Copper corrosion | ASTM D130 | — | — | — | — |
Properties are reported as concentrate (package) values to the ASTM methods shown, not finished-oil values; published per grade as test data is confirmed. Request the current TDS for any grade.
Performance Coverage
Formulated to meet the requirements of
Coverage is grade-specific: the turbine standards apply to PA6001, the compressor standards to PA6000, heat-transfer to PA6032 and slideway to PA6077. These are formulation targets against the public ISO and DIN categories at the appropriate treat rate in a suitable base oil — not OEM approvals. Any OEM turbine, compressor or machine-tool builder approval is held by the finished-oil marketer, not the additive package. Read oxidation life with TOST (ASTM D943) or RPVOT (D2272), water separation with D1401 and air release with D3427.
The Industrial Standards Map
- Compressor — ISO 6743-3 / DIN 51506. Classifies air-compressor oils by compressor type and duty; the focus is oxidation stability and clean, deposit-free running.
- Turbine — ISO 8068 / DIN 51515. The turbine-oil standards (note: turbine oil is not covered by transformer-oil standards such as IEC 60296). Performance is read through TOST oxidation life (ASTM D943), RPVOT (D2272), demulsibility (D1401) and air release (D3427).
- Heat transfer — ISO 6743-12. Thermal-oil classification; the key property is thermal/oxidative stability at high bulk and film temperature.
- Slideway — ISO 6743-13. Way-lubricant classification; the defining property is stick-slip behaviour (static vs dynamic friction) alongside adhesion and coolant separation.
Common Applications
- Reciprocating & rotary-screw air compressors: deposit and varnish control at hot discharge — PA6000.
- Steam & hydro turbine-generator sets: R&O bearing and governor oil with long oxidation life — PA6001.
- Heat-transfer / thermal-oil systems: closed-loop industrial heating that resists coking — PA6032.
- CNC machine-tool slideways: stick-slip-free way lubrication that shares the machine hydraulic circuit — PA6077.
- Centralised lubrication systems: single-fluid circuits serving multiple functions — PA6077.
Need help choosing an industrial package?
Tell us the equipment (compressor type, turbine type, heat-transfer or slideway), the operating temperature and drain-interval target, the ISO standard you must meet and the base oil group. We will point you to the right grade and a starting treat rate, then share the relevant technical documents. Samples in 1 kg and 5 kg; bulk in 200 kg drums and 1000 kg IBC, with COA, TDS and SDS per shipment.
Request a Sample Get a QuoteThese ashless industrial oils are built from antioxidants, rust inhibitors, yellow-metal passivators and demulsifiers; the slideway grade adds friction modifiers and anti-wear. See the additive packages overview, the hydraulic and gear packages, and Industrial Lubricant applications.
Quick Reference
What is the difference between a compressor oil and a turbine oil?
Both are ashless R&O oils, but they are optimised differently. A compressor oil prioritises oxidation resistance at high discharge temperature and deposit control on valves and rotors. A turbine oil emphasises very long oxidation life, demulsibility (fast water separation), air release and foam control over multi-year drains. PA6000 and PA6001 are tuned accordingly and are not interchangeable.
Can PA6001 turbine oil be used in a gas turbine?
PA6001 is primarily for steam and hydro turbine bearing/governor oils on Group I/II mineral base oils. High-temperature gas turbines may require synthetic (PAO/ester) turbine oils and specific OEM specifications (for example GE GEK 32568 or Pratt & Whitney 521). Contact our technical team to confirm suitability for your gas-turbine OEM requirement.
What standard covers turbine oil — is it IEC 60296?
No. IEC 60296 covers transformer (insulating) oils, not turbine oils — a common mix-up. Turbine oils are covered by ISO 8068 and DIN 51515, with performance read through the TOST oxidation test (ASTM D943), RPVOT (D2272), demulsibility (D1401) and air release (D3427). PA6001 is formulated to the turbine-oil requirements.
At what temperature can a heat-transfer oil made with PA6032 run?
PA6032 is for closed-loop heat-transfer circuits; the maximum bulk temperature depends on the base oil — typical mineral thermal oils run up to roughly 280–300 °C bulk fluid, with a lower film-temperature limit. Consult CheMost for the base-oil recommendation and film-temperature limit for your system.
How does PA6077 prevent stick-slip on machine-tool slideways?
PA6077 contains friction modifiers that reduce the gap between static and dynamic friction on the ways, eliminating the jerky stick-slip motion that causes dimensional error in precision machining — while the same fluid circulates in the machine’s hydraulic circuit, compatible with its pump and servo valves.
About this page & our data. The specifications and test methods on this page are public references (API, ACEA, DIN, ISO, SAE) — not CheMost measurements. Grade specifications come from each package’s TDS; where a value is not confirmed for a grade, we mark it “on request” rather than estimate. CheMost is a manufacturer and sourcing partner established in 2013; OEM and API/ACEA licences are held by the finished-oil marketer, not the additive package. Last reviewed June 2026 · CheMost technical team.
Explore Other Additive Packages
Every CheMost ready-to-blend package, at a glance. Match the finished-oil specification you are building — open any family to see grades, performance tiers, and treat rates.