#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