rc77Description: RC-77 is a level 4, Method B & D non-water washable fluorescent penetrant for inspecting castings, extrusions and similar parts. RC-77 is a versatile, general purposeRC-77 POST-EMULSIFIABLE FLUORESCENT PENETRANT Technical Data Sheet - Fiche Technique Approvals and conformities ASME ISO 3452-2 DASSAULT AVIATION