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CircleSafe® 820A Water Based Non-Fluorescent Aerosol by Circle Systems

CircleSafe® 820A Water Based Non-Fluorescent Aerosol

General Description:

CircleSafe® 820A is an aerosol spray can of Mi-Glow® 106 black particles, premixed with liquid Wetting Agent 771, formulated in water media.

It is designed to be used with visible light inspection for detecting discontinuities found in finished products and structural fabrications. Higher particle concentration provides heavier indication buildup for easy detection.

This aerosol is packaged in a carbon dioxide propellant for odor-free, fume-free, non-combustible inspection.

CircleSafe® 820A can be used with Mi-Glow® WCP

Physical Characteristics: Black solution with a slight detergent odor, contained in an aerosol package.

Typical Properties: (Not a specification)

  Mi-Glow® 820A
Particle Color Black
Average Particle Size 1.5 µm
AMS Standard 3042
SAE Sensitivity* 6
Temperature Range 120°F Maximum
*Representative of the number of lines shown on an AISI 01 Ketos tool steel ring as defined in SAE AS5282


  • 1. For best results, use when can is between 70° and 90° F (21° and 32° C).
  • 2. Thoroughly clean surface to be examined.
  • 3. Shake can vigorously for fifteen seconds and occasionally during use.
  • 4. Point spray button toward inspection surface, holding can 7 to 9 inches (18 to 24 cm)from surface.
  • 5. Spray solution onto suitable, magnetized surface until the surface is thoroughly covered with solution.
  • 6. Examine the surface under black light for fluorescent indications.
  • 7. If clogging develops, turn spray button ¼ turn. If clogging persists, remove and clean spray button. DO NOT put pin or other object into can opening. Gently replace spray button with a twisting motion, holding top of can and spray button opening pointed away from you.
  • 8. Discard empty can in trash. DO NOT place in garbage compactor

Specification Compliance: Particles conform to or exceed all relevant specifications including but not limited to ASTM E 1444, MIL-STD-271, AMS 3042 and NAVSEA 250-1500-1.

Shelf Life: Two (2) years when stored in a clean area, away from excessive heat or cold

Part Number and Container Size:

  • 3600, 12 – 16 ounce cans / case
  • (Product Data Sheet)
    (Technical Bulletin Sheet)
    Product SDS October 29 2013 Version 01