Circle Systems Sir-Chem® Dry Powder Black

Sir-Chem Dusting Powder Black is a highly refined nonfluorescent black magnetic powder used for dry method magnetic particle inspection. Sir-Chem Dusting Powder Black provides excellent colored contrast on polished surfaces with good particle buildup. It is designed to be used in visible light to reveal medium to coarse discontinuities on fabricated components or weldments such as bridges, pipes, large tanks, machinery, and equipment.

Package Size

10 pounds/jar, 50 pounds/pail, 5kg./jar, 25kg./pail

  • Provides clear indications and adequate contrast on finished surfaces
  • Sizing characteristics – ensure reliable dry method MPI with minimal dust
  • Does not – require UV-A lighting

Physical Characteristics
Black powder, odorless.

Particle Certification
Particles meet all relevant specifications, including but not limited to
ASTM E 1444, ASTM E 3024, AMS 3040, MIL-STD-271, NAVSEA 250-1500-1,
NTR-1E. Certification is included with each shipment.

Particle Color: Black
Average Particle Size: 75 µm
AMS Standard: 3040
SAE Sensitivity*: 8
Temperature Range: 800°F (427°C)

Domestic Packaging

Item # / Package Size
#2651 – 10 pounds/jar

#2655 – 50 pounds/pail

International Packaging

Item # / Package Size

#2658 5kg./jar

#2657 25kg./pail

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