Phosphorus Extreme Pressure & Anti-Wear Additives
Low-Temperature Protection for Metalworking Fluids and Industrial Lubricants
Dover Chemical offers a comprehensive portfolio of phosphorus-based extreme pressure (EP), anti-wear (AW), and antioxidant technologies designed for metalworking fluids, industrial lubricants, and specialty formulations. Available as phosphate esters, phosphite esters, phosamides, and performance packages, these additives help formulators improve wear protection, reduce galling, enhance lubricity, and optimize wear protection, oxidation stability, and overall formulation performance.
Why Choose Dover Phosphorus EP & AW Additives
Dover's phosphorus additives provide a versatile platform for formulators seeking anti-wear protection, low-temperature extreme pressure performance, oxidation stability, and formulation flexibility. Phosphate esters, phosphite esters, phosamides, and phosphorus performance packages allow formulators to select chemistry based on metal compatibility, fluid type, corrosion requirements, and overall performance objectives.
Low-Temperature Protection
Broad Phosphorus Portfolio
Anti-Wear Performance
Oxidation Stability
Balanced Additive Performance
Formulation Flexibility
Where Dover Phosphorus EP & AW Additives Perform
Dover phosphorus additives are used across metalworking fluids and industrial lubricant applications requiring anti-wear protection, low-temperature EP performance, oxidation stability, corrosion control, and formulation flexibility.
Applications
- Cutting Fluids
- Machining Fluids
- Grinding Fluids
- Honing Fluids
- Drilling Fluids
- Tapping Fluids
- Drawing Fluids
- Stamping Fluids
- Metal Forming Lubricants
- Neat Oils
- Soluble Oils
- Semi-Synthetic Metalworking Fluids
- Synthetic Fluids
- Hydraulic Fluids
- Industrial Lubricants
Functions
- Anti-Wear Performance
- Extreme Pressure Protection
- Friction Reduction
- Galling Prevention
- Oxidation Stability
- Hydroperoxide Decomposition
- Corrosion Inhibition
- Lubricity Enhancement
- Protective Surface Film Formation
- Formulation Balance
- Sulfur/Chlorine Replacement Support
Materials
- Carbon Steel
- Stainless Steel
- Alloy Steel
- Cast Iron
- Aluminum
- Copper Alloys
- Brass
- Bronze
- Ferrous Metals
- Non-Ferrous Metals
- Mixed-Metal Applications
Product Overview
Phosphorus-based additives provide anti-wear and extreme pressure protection by interacting with metal surfaces to form protective boundary films that reduce friction and metal-to-metal contact. Their ability to function at lower temperatures makes phosphorus chemistries particularly valuable for wear protection before the higher activation conditions associated with more severe EP environments are reached.
Dover offers a broad range of phosphorus technologies, including phosphate esters, phosphite esters, phosamides, and multifunctional performance packages. Depending on chemistry and molecular structure, these additives can contribute anti-wear performance, oxidation stability, corrosion protection, lubricity, and compatibility across neat-oil and water-based formulations.
Phosphate Ester Technologies
Phosphate esters are widely used to improve anti-wear and load-carrying performance in metalworking fluids and industrial lubricants. These chemistries help form protective surface films that reduce friction, wear, and galling under boundary lubrication conditions.
Dover's phosphate ester technologies provide formulators with options for balancing anti-wear performance, fluid compatibility, and metal protection across machining, forming, and industrial lubricant applications.
Phosphite Ester Technologies
Phosphite esters provide multifunctional performance as secondary antioxidants and can also contribute to anti-wear and corrosion performance. By decomposing hydroperoxides, phosphites help interrupt oxidative degradation and support primary antioxidant systems.
Dover offers alkyl, aryl, and polymeric phosphite technologies that allow formulators to select the appropriate balance of antioxidant activity, stability, and system durability.
Phosamides & Multifunctional Technologies
Phosamides provide multifunctional performance in water-soluble and semi-synthetic metalworking fluids. These chemistries can contribute anti-wear performance, corrosion inhibition, and formulation stability, helping formulators reduce the number of individual additives required to achieve balanced fluid performance.
Their versatility makes phosamides particularly valuable in formulations where metal protection, fluid compatibility, and water-based performance must be considered together.
Technical Overview
Phosphorus extreme pressure and anti-wear additives are designed to protect metal surfaces under boundary lubrication conditions where conventional fluid films may become insufficient. These technologies help reduce friction, wear, and galling while supporting surface protection across metalworking and industrial lubricant applications.
Dover's portfolio includes phosphate esters, phosphite esters, phosamides, and phosphorus performance packages. Multiple chemistry platforms are available to help formulators balance anti-wear performance, oxidation stability, corrosion protection, metal compatibility, and formulation requirements.
| Property | Value |
|---|---|
| Product Family | Phosphorus Extreme Pressure & Anti-Wear Additives |
| Technology Platforms | Phosphate Esters, Phosphite Esters, Phosamides & Performance Packages |
| Primary Applications | Machining, Grinding, Drawing, Stamping, Forming & Industrial Lubrication |
| Primary Functions | Anti-Wear Performance, Extreme Pressure Protection, Oxidation Stability, Corrosion Protection & Lubricity Enhancement |
| Selection Factors | Fluid Type, Metal Compatibility, Operating Conditions, Oxidation Requirements & Formulation Objectives |
| Metal Compatibility | Ferrous, Non-Ferrous & Mixed-Metal Applications |
| Product Portfolio | Multiple Phosphorus Chemistries & Multifunctional Technologies |
| Technical Support | Application-Specific Product & Formulation Guidance |
Available Products
Dover's phosphorus additive portfolio includes extreme pressure, anti-wear, and antioxidant technologies designed for metalworking fluids and industrial lubricant formulations. Products are grouped by primary performance role to help formulators compare phosphorus chemistry, viscosity, and application fit.
Extreme Pressure & Anti-Wear Technologies
Designed for formulations requiring wear protection, load-carrying performance, and surface protection across machining, metal forming, rolling, and water-based metalworking applications.
| Product | Phosphorus % | Key Characteristics |
|---|---|---|
| Mayfree 133 | 4.0 | Phosamide for oils, soluble oils, and semi-synthetics; designed for metal forming applications |
| Mayfree 2033 | 4.0 | Lower-viscosity phosamide for machining applications |
| Doverlube NCL-2 | 3.0 | Phosphorus AW/EP package for rolling oils |
| Doverlube NCL-2P | 3.2 | AW/EP phosphorus package for rolling oils with excellent oil solubility |
| Doverphos EP-425 | 4.3 | Polymeric phosphite ester with EP, AW, and antioxidant functionality |
| Mayphos 45 | 5.4 | Ethoxylated phosphate ester for flute grinding and cold heading |
| EM 706 | 5.5 | Ethoxylated alkyl phosphate ester for EP and anti-wear performance |
Anti-Wear & Anti-Oxidant Technologies
Phosphite technologies designed to combine anti-wear performance with secondary antioxidant functionality, supporting oxidation control and fluid stability.
| Product | Phosphorus % | Key Characteristics |
|---|---|---|
| Doverlube AW147P | 4.7 | Polymeric phosphite anti-wear additive and secondary antioxidant |
| Doverlube AW265P | 6.5 | Polymeric phosphite anti-wear additive and secondary antioxidant |
| Doverphos 253 | 5.3 | Di-oleyl hydrogen phosphite ester with EP, AW, and antioxidant functionality |
| Doverphos 54 | 5.3 | Tri-alkyl phosphite ester with anti-wear and antioxidant functionality |
Selecting the Right Phosphorus Technology
Selecting the appropriate phosphorus technology depends on the fluid type, metal being processed, operating conditions, oxidation requirements, and the desired balance of anti-wear, extreme pressure, and corrosion performance. Dover's portfolio includes phosphate esters, phosphite esters, phosamides, and multifunctional phosphorus technologies that can be used individually or in combination to optimize metal protection, fluid stability, and overall formulation performance. The guide below provides a starting point for selecting the appropriate technology based on common application requirements and performance objectives.
| If You Need To… | Consider… |
|---|---|
| Improve anti-wear performance | Phosphate Esters |
| Support machining and metal forming performance | Phosamides |
| Improve water-soluble formulations | Phosamides |
| Add corrosion inhibition | Phosamides |
| Build sulfur/chlorine replacement systems | Phosphorus Packages |
| Improve oxidation resistance | Phosphite Esters |
| Combine anti-wear and antioxidant performance | Polymeric Phosphites |
| Create balanced EP performance | Combined Phosphorus Technologies |
Product & Formulation Advantages
Dover's phosphorus extreme pressure and anti-wear additives are designed to support evolving metalworking fluid and industrial lubricant requirements while providing formulators with a broad range of chemistry and performance options.
Technical Resources & Supporting Documentation
Access technical documentation, product data, and application guidance for Dover's phosphorus extreme pressure and anti-wear additive portfolio. These resources support product selection, formulation development, and metalworking fluid performance optimization.
- Data Sheet
Explore Related Dover Products
Dover offers a broad portfolio of metalworking fluid additives and industrial lubricant technologies designed to support extreme pressure performance, corrosion protection, lubricity enhancement, and formulation flexibility. Many metalworking fluid formulations combine sulfur, phosphorus, corrosion inhibition, and boundary lubrication technologies to achieve balanced performance.