Calcium sulfonate is a very alkaline liquid that is often used as a thickener, emulsifier and corrosion inhibitor for lubricants. It works well with most mineral base oils, white oils, and synthetic base stocks. It is a key ingredient for making calcium sulfonate greases and engine oils. We offer TBN 300 (OB) and TBN 400 (HOB) calcium sulfonate with different flashpoints and specifications to suit your needs. Calcium sulfonate grease does not need extra additives to give extreme pressure (EP) and anti-corrosion benefits, making it fit for food-grade applications.