
NDT Products LTD
Sherwin HM-3A Fluorescent Penetrant
HM-3A is a Level 2, Method A water-washable fluorescent penetrant designed for inspecting castings, extrusions, and similar parts. This versatile, general-purpose penetrant is suitable for use on a variety of materials, including aluminum and magnesium. HM-3A has been trusted by aerospace, airframe, turbine engine, and missile manufacturers for over a decade.