Stroud Systems Inc. Header
Circle Systems Logo

Mi-Glow® 820 Non-Fluorescent

Mi-Glow® 820 Non-Fluorescent "Black" Concentrate for use in Water Bath

Mi-Glow® 106 black particles premixed with liquid Wetting Agent 771 for use in water media

Higher particle concentration provides heavier indication buildup for easy detection. It is designed to be used with visible light for finding discontinuities in finished products.

Mi-Glow® 820 can be used with Mi-Glow® WCP.

Physical Characteristics: Black solution with a slight detergent odor.

Typical Properties: (Not a specification)


  Mi-Glow® 820
Particle Color Black
Average Particle Size 1.5 µm
AMS Standard 3044
SAE Sensitivity* 6
Temperature Range 32-120°F (0-49°C)
*Representative of the number of lines shown on an AISI 01 Ketos tool steel ring as defined in SAE AS5282

Preparation:The change-over from a solvent system to a Mi-Glow® 820 system requires a thorough cleaning of the tank and piping. This can be accomplished in most cases by flushing the system twice, using about 1/2 gallon of Cleaner 500 and 10-15 gallons of water. Flushing should be followed by a water rinse.

Mi-Glow® 820 should be used at a dilution of 1 part concentrate with 39 parts of water. This will give a particle concentration of 9.5 grams per liter. The recommended proportion may vary depending on specific applications. Each bottle should be thoroughly mixed before using. If a bottle is emptied, it should be rinsed with water and the contents added to the system.

Lighting: A minimum of 100 foot candles (1000 lux) of visible light at the part surface per ASTM E 709 and ASTM E 1444 is recommended.

Specification Compliance: Particles meet all relevant industry specifications, including but not limited to MIL-STD-1949, AMS 3042, MIL-STD-271, NAVSEA 250-1500-1, NTR-1E, ASTM E 1444.

Shelf Life: One (1) year, when sealed bottles are not subjected to extreme heat or cold.

Part Number and Container Size:

  • 3611 Case of 4 &ndash 1 quart bottles / case
  • (Product Data Sheet)
    (Technical Bulletin Sheet)
    Product SDS October 29 2013 Version 01