Immunol® 438 – Magnetic Inspection NDT Additive

Immunol® 438 is an additive for water when water is used in place of solvents to suspend pastes and powders as in magnetic particle inspection, i.e., Magnaflux and Magnaglo. Immunol® 438 is also an additive to hydrostatic test solutions and provides rust inhibition, dispersion and wetting to steel, iron, copper, brass and zinc surfaces.