Phosphate Esters Series

Metalworking Additives Phosphate Esters are oil‑soluble and water‑compatible lubricant additives manufactured by Fanschem. Containing alkyl phosphate, alkyl‑aryl phosphate and phosphate‑amine‑salt variants, these liquid‑type additives generate tough boundary lubrication films on cutter and workpiece contact surfaces to lower shearing friction, relieve tool wear and offer reliable extreme‑pressure protection under heavy‑duty metal cutting, grinding and stamping conditions. They feature outstanding surface‑adsorption capacity, good hydrolysis resistance and great compatibility with rust inhibitors, biocides and other metal‑working fluid components. Widely utilised in soluble cutting fluids, neat oil for machining, cold‑forming lubricants and grinding liquids for ferrous and non‑ferrous metals, Fanschem supplies customizable activity grades to comply with international metal‑working fluid emission and safety standards, with steady bulk‑scale supply and professional formulation‑tuning support for global metal‑working additive manufacturers.

What Are Phosphate Ester Metalworking Additives

Phosphate Ester Metalworking Additives are multi-functional phosphorus-based surfactants tailor-made for oil-soluble and water-dilutable metalworking fluid formulas, combining extreme pressure lubricity, emulsification and multi-metal anti-corrosion in one single component. Different from single-function sulfur or thiadiazole EP additives without emulsifying ability, Fanschem phosphate ester metalworking additive line contains two mature industrial grades: PMET PE1650 oleyl polyether phosphate ester and PMET PE1300 isomeric alcohol phosphate ester. The special phosphate ester molecular structure owns strong surface activity and stable tribological film-forming capacity. In heavy friction machining conditions, phosphorus-rich protective layers form rapidly on metal surfaces to isolate direct contact between workpieces and cutting tools. Meanwhile, its surfactant backbone endows the additive with excellent emulsifying performance to mix base oil and water evenly without layer separation. With low foam, mild corrosion inhibition for aluminum alloy and wide pH adaptability, these phosphate ester additives have become indispensable core raw materials for aqueous cutting fluid, aluminum stamping fluid and semi-synthetic metalworking fluids all over the world.

Core Performance & Key Features of Phosphate Ester Metalworking Additives

Integrated EP Lubrication & Universal Multi-Metal Anti-Corrosion

Both PMET PE1650 and PMET PE1300 deliver reliable extreme pressure bearing capacity under high-load cutting, grinding and forming processes. The phosphorus tribofilm effectively reduces friction coefficient, suppresses tool wear and avoids workpiece surface scratching and burn marks. PMET PE1650 oleyl polyether structure provides outstanding anti-corrosion protection for aluminum materials, preventing aluminum alloy from blackening and pitting corrosion during long-time processing. PMET PE1300 achieves universal passivation effect for iron, copper, tin and zinc substrates, meeting the anti-rust demand of mixed-metal processing production lines. Neither product contains harmful heavy metal elements, conforming to global environmental protection requirements for metalworking fluids.

Low-Foam & Stable Emulsifying Water Compatibility

PMET PE1300 adopts isomeric alcohol molecular design to realize excellent low-foam performance, which can avoid excessive foam overflow in high-speed circulating fluid tanks and will not interfere with filtration and cooling systems. PMET PE1650 balances emulsifying power and foam control, suitable for preparing stable semi-synthetic and soluble metalworking fluids. The whole series maintains stable emulsifying effect in weak acid to alkaline aqueous systems, fully compatible with various mineral base oils, synthetic esters and water phases. After long-cycle circulation and repeated dilution, there is no oil floating, precipitation or demulsification failure, greatly extending the service life of finished metalworking fluids.

Technical Advantages Over Conventional Metalworking EP Additives

Compared with traditional sulfur-based and thiadiazole extreme pressure additives that lack emulsifying functions, Fanschem phosphate ester metalworking additives integrate EP, lubrication, emulsification and anti-corrosion into one molecule, which can simplify complex additive packages and reduce the types of auxiliary materials needed for formulation. Traditional EP agents are prone to generate large amounts of foam when compounded with emulsifiers, while this phosphate ester series owns inherent low-foam property to solve foam overflow trouble of aqueous processing fluids. The phosphorus film shows mild chemical activity to aluminum alloy, without etching or discoloration defects often caused by sulfur additives. The products have good compatibility with water-soluble corrosion inhibitors, hard water stabilizers and biocides, without chemical antagonism or sediment generation. In addition, the recommended addition dosage is moderate, helping metalworking fluid manufacturers cut comprehensive raw material blending costs.

Main Applications of Phosphate Ester Metalworking Additives

Fanschem phosphate ester metalworking additives cover a wide range of semi-synthetic, fully synthetic and soluble metalworking fluid formulas. PMET PE1650 oleyl polyether phosphate ester is the preferred additive for aluminum alloy cutting fluid, aluminum deep drawing stamping fluid and low-odor semi-synthetic grinding fluid, especially suitable for automotive aluminum parts, aluminum hardware precision machining production lines. PMET PE1300 low-foam isomeric alcohol phosphate ester is widely used in universal iron cutting fluid, multi-metal mixed processing fluid and circulating grinding fluid with strict low-foam requirements. Both grades can be freely compounded with sulfur-free EP agents, water-based rust inhibitors and biocides to formulate environmentally friendly metalworking fluids for hardware processing, machinery manufacturing, new energy auto parts and precision mold machining industries.

Technical Specifications & Product Parameters

Fanschem supplies two mature industrial-grade phosphate ester metalworking additives with adjustable physicochemical indicators to meet personalized formula standards of metalworking fluid factories. PMET PE1650 oleyl polyether phosphate ester features strong emulsification, excellent aluminum anti-corrosion and balanced extreme pressure lubrication performance, dedicated to aluminum alloy processing fluids. PMET PE1300 isomeric alcohol phosphate ester highlights ultra-low foam characteristic, universal multi-metal anti-rust capacity and wide pH compatibility, ideal for general-purpose circulating water-based cutting fluids. Customers can customize phosphorus content, acid value, emulsification index and foam height according to different semi-synthetic, full-synthetic and soluble processing fluid formulation demands.

Phosphate Ester Metalworking Additives Manufacturer Strength

As a professional manufacturer focused on full-series metalworking fluid functional additives, Fanschem phosphate ester series obtains consistent recognition from aqueous and semi-synthetic metalworking fluid producers worldwide. The product lineup covers polyether modified and isomeric alcohol phosphate ester types, fully covering the phosphate ester EP emulsifier formulation demands of aluminum processing and universal mixed-metal machining fluids. Strict whole-process quality control including raw material incoming inspection and full-item finished product testing ensures stable emulsification, low-foam and anti-corrosion performance of each batch. All products pass international environmental and export safety certifications to support global cross-border sales business. Independent R&D laboratory continuously optimizes phosphate ester molecular chain structure to upgrade aluminum protection and low-foam performance, adapting to the market trend of low-odor, long-life green metalworking fluids. Factory direct sales eliminate intermediate dealers, with sufficient permanent inventory to sustain continuous large-volume orders from overseas metalworking fluid suppliers.

Custom Formulation Solutions & Global Bulk Supply Service

Fanschem provides one-stop supporting service for worldwide metalworking fluid manufacturers, distributors and formula engineers purchasing phosphate ester metalworking additives. Complete OEM & ODM customization services are available, including adjustment of phosphorus content, acid value, emulsifying strength and private label packaging specifications. Multiple flexible packaging options are offered: small trial plastic barrels for laboratory formula debugging, standard industrial plastic drums for medium batch production and large-capacity IBC plastic tanks for mass industrial orders. Professional technical team supplies targeted dosage guidance, water system compatibility test reports and complete extreme pressure, foam and salt spray anti-corrosion test data to accelerate customers’ formula optimization progress. We reply to quotation inquiries rapidly within working hours, cooperating with reliable cross-border logistics partners to guarantee stable, on-time and safe delivery of bulk phosphate ester additive orders to all regions around the globe.