#1 Gray provides strong contrast on most metal surfaces during dry method mag particle testing in visible light. It is ready-to-use for visible light flaw detection of surface and slightly subsurface discontinuities in ferrous metals. It can be used in a powder blower or shaken from a bottle during magnetization, and blown off while current is still being applied. On material with a high magnetic retentivity, indications can still be formed after the current has been turned off. KEY FEATURES Sharp, color-contrast indications on high reflective surfaces Ready-to-use Good particle buildup for quick detection Highly refined for optimal particle shape and size combination Minimal dust build-up Does not require a black light or darkened inspection area Applications Ideal Application: Castings, Dark surfaces Detecting medium, large and course discontinuities Extreme temperatures Field testing Forgings In-service inspections Large parts Light, medium, dark surfaces Rough/textured surfaces Spot inspections Weld testing Defect examples: Fatigue cracks Grinding cracks Inclusions Laps Quenching cracks Seams Shrink cracks Tears Welding defects Compliance StandardsAMS 3040 ASME ASTM E1444 ASTM E709 NAVSEA 250-1500-1 NAVSEA T9074-AS-GIB-010/271
