Metal cutting fluid bactericide MBM is a slow-release bactericide with broad spectrum and high efficiency and a certain gas-phase sterilization ability. It is suitable for inhibiting the growth and reproduction of microorganisms in various humid environments, preventing the generation of putrefaction and foul odors, and ensuring safe operation of the system. Sexual fungicide, the product has good solubility, suitable for oil and water based systems. In addition to the bactericidal effect, the product also has a certain anti-rust effect of black metal. MBM is a new generation of broad spectrum and low toxicity developed for water-based metalworking fluids Sexual fungicide, the product has good solubility, suitable for oil and water based systems. In addition to the bactericidal effect, the product also has a certain anti-rust effect of black metal. MBM is effective against both gram-negative and Gram-positive bacteria. MBM is effective against both gram-negative and Gram-positive bacteria.