Cor-Ban 27L corrosion inhibitor is used for static joint applications on a multitude of substrates including any metal surface. It’s formulated to function as a non-drying, low-odor, wide temperature range corrosion inhibiting compound. Sold in a 5 oz tube (Zip Chem 009402) or quart (Zip Chem 009405). Meets BMS3-23. 3 year shelf life.