NDT Products LTD
Sherwin HM-607 Fluorescent Penetrant
HM-604 is a Level 3, Method A water-washable fluorescent penetrant designed for inspecting airframes, turbine engines, and missiles. Known for its high sensitivity on various materials, including aluminum and magnesium, HM-604 complies with low sulfur and low halogen requirements and has been trusted by aerospace manufacturers for over a decade.