Sulfurized Fatty Acid Ester Additive is a low‑odor, non‑active sulfur‑based extreme‑pressure and anti‑wear additive. It provides outstanding load‑carrying property while being mild to copper, brass and other non‑ferrous alloys.

It features good solubility in mineral base oils. It is widely adopted for heavy‑duty metal‑working fluid formulations to reduce friction and prevent welding under severe machining conditions. This additive shows good compatibility with other common lubricant additives.