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< back to home | Circle Systems Products - Magnetic

Sections on this page - Materials for Wet-Method Magnetic Particle Inspection | Advanced Concentrates for Water-Bath Systems | CIRCLESAFE Aerosols | Dry Method Powders | Fluorescent Magnetic Particles for Underwater Nondestructive Testing

CIRCLE SYSTEMS, INC.
Better products through chemistry

In January 1956 Warren C. Chedister founded Circle Chemical. As Circle grew and developed into what it is today, Circle's focus matured and in August of 1992 Circle Chemical became Circle Systems, Inc. Located in the heart of the Midwest, Circle is an hour's drive west of Chicago's O'Hare Airport.

Circle Systems, Inc. has been a leading manufacturer of magnetic particles for nondestructive testing for over forty years. Starting as a chemical company, its roots are in the chemistry of particle manufacture, wetting agents, anti-foamers, corrosion inhibitors and pH adjusters. From these roots have grown and developed the first magnetic particles designed specifically for underwater inspection; the first water-based aerosol magnetic particle inspection package; the first magnetic stripe card for quick bath inspection; dual inspection particles; wetting agents and water base carriers that retain all the dispersion benefits of oil, while providing non-toxic and environmentally safe application -- just to name a few.

In addition to the proprietary line, Circle is also a laboratory specialist -- recognizing the need for unique requirements that go beyond its proprietary line. For this reason, Circle has developed special products for the particular needs of the railroads, underwater inspection and the steel, automotive and aerospace industries. Circle's chemists, technicians and sales personnel stand ready to provide you with the formulations, fluorescent and non-fluorescent, that will meet your individual requirements.

All Circle products are certified to Military, ASTM, AMS and other pertinent standards.

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PRODUCT LISTING

Materials for Wet-Method Magnetic Particle Inspection

MI-GLOW #800 - Low background, high sensitivity and durability fluorescent particles for use in a solvent carrier. Certifiable to AMS 3044 and major aerospace specifications.

MI-GLOW #810 - MI-GLOW #800 fluorescent particles premixed with powdered WETTING AGENT #100 for use in water media. Certifiable to AMS 3044 and major aerospace specifications.

MI-GLOW #920 - Low background, high sensitivity and durability fluorescent particles for use in a solvent carrier. Certifiable to AMS 3044 and major aerospace specifications.

MI-GLOW #118 - Slightly larger and brighter fluorescent particles for use in a solvent carrier. For general industrial use such as forgings, billets and similar applications.

MI-GLOW #218X - MI-GLOW #118 fluorescent particles premixed with powdered WETTING AGENT #4 for use in a water media.

MI-GLOW #600 - Distinctive red particles for UV and/or visible light applications. For use in a solvent carrier. Ideal for inspection on welds and applications where high sensitivity is required but a dark environment for UV is difficult to attain.

MI-GLOW #850 - MI-GLOW #600 dual-light particles premixed with powdered WETTING AGENT #100 for use in water media.

MI-GLOW #106 - Black particles for use in a solvent carrier for detecting fine defects, certifiable to AMS 3041 and other documents.

CIRCLESOL M - A high flashpoint petroleum solvent specifically designed for use in magnetic particle inspection. Meets the requirements of AMS 3161, AMS 2641, DOD-F-87935, and Pratt & Whitney 1887.

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Advanced Concentrates for Water-Bath Systems

MI-GLOW #778 - MI-GLOW #800 fluorescent particles premixed with liquid WETTING AGENT 771 for use in water media. Advance formulation allows for conversion to water bath from solvent bath for many applications. Certifiable to AMS 3044 and major aerospace applications.

MI-GLOW #820 - MI-GLOW #106 nonfluorescent particles premixed with liquid WETTING AGENT #771 for use in water media. Higher particle concentration provides heavier indication buildup for easy detection under visible light conditions.

CIRCLESAFE Aerosols

CIRCLESAFE 778-A - Aerosol spray can version of MI-GLOW #778. Carbon dioxide propellant for odor-free, fume-free inspection. Excellent for detecting fine defects in confined areas. Packaged 12 cans per carton.

CIRCLESAFE 800-A - MI-GLOW #800 fluorescent particles and CIRCLESOL M solvent packaged ready-to-use in an aerosol can. Carbon dioxide propellant. Packaged 12 cans per carton.

CIRCLESAFE 820-A - Aerosol spray can version of MI-GLOW #820. Carbon dioxide propellant for odor-free, fume-free inspection. Packaged 12 cans per carton.

CIRCLESAFE 850A - MI-GLOW #600 dual-light particles and liquid WETTING AGENT #771 (water media) packaged ready-to-use in an aerosol can. Carbon dioxide propellant. Packaged 12 cans per carton.

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Dry Method Powders

60 Series - These powders are available in four different colors. They are highly refined in order to detect minute discontinuities, and conform to specifications AMS 3040, ASTM E-709, ASME Section V, and MIL-STD-271F(Ships).

70 Series - Fluorescent orange/red and fluorescent green powders meet the criteria of 60 Series powders.

Fluorescent Magnetic Particles for Underwater Nondestructive Testing

MI-GLOW UW #1 - Bright pink particles are visible in natural light and fluoresce in UV light. Slightly larger particle size for better enhancement of larger defects.

MI-GLOW UW #528 - Bright red particles are visible in natural light and fluoresce in UV light. Finer, lighter particles remain in suspension longer and enhance finer defects.

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