Metal cutting fluid In actual production, even high-quality metal cutting fluids must be added with a certain amount of bactericidal and algae-removing agents to extend the service life and increase the utilization rate. PSC80626, whether used as a metal cutting fluid additive, a settling agent or a water-based cutting fluid, can accelerate the sedimentation of metal chips, accelerate the separation of water and oil in the cutting fluid, effectively reduce the growth of bacteria, and extend the life of the metal cutting fluid. PSC80626 is used in fully synthetic metal cutting fluids for water machines, and the amount is very small, and the additive formula can be adjusted flexibly. As a settling agent, it is basically consistent with Buckman's Busan 77 in terms of theoretical map test data, which can completely replace this type of product and has a significant effect in actual use.