TranslateMetalworking Fluids
Water-soluble and oil-soluble PAG base fluids for cutting, grinding, and forming operations, superior cooling, lubrication, and clean performance.
Performance Advantages
Why PAG for Metalworking Fluids
Dual solubility
Water-soluble PAGs provide excellent cooling and chip flushing in water-based formulations, while oil-soluble PAGs provide superior lubrication in neat oil applications.
Low foaming
PAG base fluids have inherently low foam tendency, improving performance in high-speed machining and grinding operations where foam reduces cooling efficiency.
Hard water stability
Water-soluble PAGs resist precipitation in hard water, extending fluid life and reducing maintenance requirements.
Biostability
PAG-based formulations show improved resistance to microbial growth compared to mineral oil-based emulsions, reducing the frequency of fluid changes and associated downtime.
Application Segments
Sub-Segments
Cutting & Machining
Turning, milling, drilling; water-soluble PAGs for cooling and lubrication balance in semi-synthetic formulations.
Product Range
Recommended PAG Grades
Typical grades for metalworking fluids: PAG-WS 46, PAG-WS 68, PAG-WS 100, PAG 100, PAG 150
PAG MW-2525 Synthetic
Fully synthetic metalworking fluid concentrate. Premium machining performance.
View ProductPAG MW-2520 Synthetic
Fully synthetic metalworking fluid concentrate. High-performance machining.
View ProductPAG MW-2035 Semi-Synthetic
Semi-synthetic metalworking fluid concentrate. Balanced performance for general machining.
View ProductPAG MW-1740 Cutting Fluid
Water-soluble metalworking concentrate for cutting fluids. Enhanced performance.
View ProductPAG MW-1720 Cutting Fluid
Water-soluble metalworking concentrate for cutting fluids. Full formulation base.
View ProductPAG WS-150 Chain Gear Base
Water-soluble PAG, ISO VG 150. For high-temperature chain oils and gear formulations. Superior thermal stability.
View ProductPAG WS-100 Gear Metalworking
Water-soluble PAG, ISO VG 100. For gear oils and metalworking formulations. Excellent load-carrying capacity.
View ProductPAG WS-68 Compressor Metalworking
Water-soluble PAG, ISO VG 68. Dual-purpose for compressor oils and metalworking fluids. High VI and thermal stability.
View ProductPAG WS-46 Metalworking Base
Water-soluble PAG, ISO VG 46. For metalworking fluids and compressor lubricants. Good oxidation resistance.
View ProductPAG WS-20 Light Metalworking
Water-soluble PAG, ISO VG 20. For light-duty metalworking fluids and grinding applications. Low foaming.
View ProductPAG 220 Heavy Duty Gear Oil
Grease base oil for lithium and lithium complex greases. Excellent PAG base oil for synthetic grease formulations requiring high VI (200+) and clean high-temperature operation.
View ProductPerformance Comparison
PAG vs Mineral Oil vs PAO
How PAG base oils compare to mineral oil and PAO across key performance properties.
| Property | PAG | Mineral Oil | PAO |
|---|---|---|---|
| Oxidation Stability | Excellent | Moderate | Good |
| Viscosity Index | > 200 | 95–110 | 130–140 |
| Pour Point | ≤ −40°C | −15 to −10°C | −40°C |
| Thermal Stability | Up to 260°C | Up to 150°C | Up to 180°C |
| Biodegradability | Readily biodegradable | Poor | Moderate |
| Seal Compatibility | FKM, HNBR, PTFE | Most seals (not silicone) | Most seals |
Formulation Guidance
Compatible Additives
Non-silicone polymer-based antifoam
50–200 ppm for water-soluble formulations where silicone is undesirable
BHT (Butylated Hydroxytoluene)
0.1–0.5% for oil-soluble forming fluids
Amine-based
For water-soluble formulations to protect ferrous workpieces
Technical Reference
Technical Notes
Operating temperature range: ambient to 150°C. Water-soluble PAGs typically diluted to 5–10% in water for semi-synthetic formulations. Compatible with most ferrous and non-ferrous metals. PAG residues are water-soluble and easily cleaned, unlike mineral oil residues. Relevant standards: ISO 6743-7 (Metalworking fluids), DIN 51385 (Metalworking fluid classification), ASTM D6794 (Metalworking fluid properties).
Free Tools
Free Tools for This Application
Use our free online tools to find the right PAG grade, check compatibility, and calculate specifications for your application, no signup required.
PAG Technical Guide
Comprehensive PAG selection and properties reference, covering chemistry, viscosity, compatibility, and sourcing.
Launch ToolAntifoam Dosage Calculator
Calculate the right starting dose of PAG-based antifoam for your system based on weight and application.
Launch ToolAll tools are free, no signup, no email required. Visit meecarigno.co.uk/resources to see all tools.
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