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EP Additives

EP Additives can significantly improve the tribological properties of lubricants. By reacting with the material surfaces, EP additives prevent welding of the metallic materials under extreme pressure or load conditions.

EP additives in the lubricant industry are used to improve the lubricity of oils in situations involving extremely high pressure and heavy loads. EP additives form a protective layer on metal surfaces that come into contact with each other under such conditions, such as gears, gearboxes, or roller bearings. The formation of this layer prevents direct contact between metal surfaces, which reduces wear and damage. EP additives are therefore crucial for improving the performance and service life of machines and equipment, especially under extreme operating conditions.

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EP Additives of the LUBIO® EP series contain both oil- and water-soluble products. The sulphur compounds normally used for EP additives are available in the LUBIO® EP series with a high active sulfur content (LUBIO® EP 11) or with low active sulfur content (LUBIO® EP 12). The ratio of active sulphur to total sulphur can be adjusted almost continuously.

Our product highlights for the lubricant industry

LUBIO® Chemical Basis S Active sulfur P Viscosity Color Copper corrosion Key Benefits Metalworking Gear Oils Slideway Oils Greases
approx. [%] approx. at 40° C [mm²/s] Solubility
ASTM D 1662 ASTM D 445 ASTM D 1500 ASTM D 130 (3h/100° C) Oil Water
EP 1 Salt of sulfurized sulfonates 32 0 0 Solid - 1 • Water soluble
• Non-staining
• Excellent compatibility
EP 2 DMTD derivate 22 0 0 100 2.5 1 • Superior non-ferrous metal compatibility
• Great thermal stability
EP 3 Dialkylphosphonate 0 0 9.5 5 < 0.5 1 • HX-1 registered (max. 0.5 % in finished lubricant)
• Colorless & mild odor
• No antagonism with corrosion inhibitors
EP 5 DMTD derivate 31 0 0 1500 2.5 1 • LuSC list (EU Ecolabel)
• Very high thermal stability
• Low deposit formation
EP 8 Sulfurized vegetable fatty oils & fatty acid esters 15 5 0 275 4.0 2-3 • Great Balance of EP performance and non-ferrous metal compatibility
• Medium viscosity for strong film strength
EP 9 Sulfurized vegetable fatty acid esters & olefins 26 17 0 800 4.0 4 • High viscosity for exceptional film strength in heavy-duty operations
• Strong EP performance
EP 11 Sulfurized olefins 40 38 0 50 2.0 4 • Outstanding EP performance at low temperatures
• Excellent solubility & light colored
EP 12 Sulfurized vegetable fatty oils & fatty acid esters 10 1 0 250 3.5 1 • Low odor for high quality formulations
• Superior non-ferrous metal compatibility
EP 13 Sulfurized vegetable fatty acid esters & olefins 15 1 0 600 3.0 1 • High viscosity for superior film strength
• Low odor and excellent compatibility with non-ferrous metals
EP 14 Sulfurized vegetable fatty acid esters 17 8 0 50 4.0 4 • LuSC list (EU Ecolabel)
• DE-UZ 178 ("Blauer Engel")
• High solubility & low viscosity
EP 15 Sulfurized olefins 39 36 0 40 2.0 1-2 • Excellent EP performance with improved non-ferrous metal compatibility
• Light colored & low viscosity

■ Recommended | □ Suitable

Our LUBIO® additives cover a wide range of applications. However, standard solutions are not always the best choice. If you have specific requirements or need a custom formulation, we will work with you to develop tailored additive solutions that are perfectly aligned with your processes and products.

Our experienced team is happy to provide personal consultation and support you from development to implementation. Contact ustogether, we will find the optimal solution for your challenge.

Discover more additives

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Anti-wear additives

LUBIO® MD

Metal Deactivators

LUBIO® CI

Corrosion Inhibitors

For you, we will find the right Solution.

We are happy to support you.

A complete range of services includes comprehensive consulting.

Schäfer-Additivsysteme GmbH
Ludwig-Reichling-Str. 2
67059 Ludwigshafen am Rhein, Germany
Tel.:  +49 (0) 621 595 727-0
Fax: +49 (0) 621 595 727-29
E-mail: solutions@lubio.com