Supplier Spotlight: Circle Systems, Inc.

Supplier Spotlight will be a recurring segment from Splitter NDT that will share the company history, background information and the latest news on our valued suppliers. We are proud to represent some of the most trustworthy non-destructive testing brands in the world and believe that transparency is very important when deciding where to source your products.

Today we are excited to feature Circle Systems, Inc. Circle Systems, Inc. is our go-to supplier for all things magnetic particle related and has been an industry leader in the MPI field for decades. 

History: "Circle Systems has been developing and manufacturing magnetic inspection particles for over 40 years. Magnetic particles are our primary business. Originally named Circle Chemical Co., we have been rooted in the chemistry of magnetic particle inspection since our early days. Our approach has led to products that utilize state of the art chemical technologies, best in class manufacturing methods, and a broad product line that is unmatched in our industry. Circle Systems has established our reputation as a trusted supplier to some of the most notable manufacturers and nondestructive testing companies around the world."

Commitment to Safety: "Circle Systems designs our products with worker safety and environmental protection in mind. Circle has led the way in developing products for use in water based carriers to replace petroleum based chemistry in many applications. We have eliminated harmful propellants from our CircleSafe® aerosol products. Our dry powders include a line of bonded products to reduce airborne dust from the inspection process. Our commitment to worker and environmental safety is not just a catch phrase, it is a genuine business model that is reflected in our products now and into the future."

We currently have a variety of products in-stock from Circle Systems. The black and white combination (CircleSafe® 820A black magnetic particle combined with the Mi-Glow® WCP White Contrast Paint) is a staple for any inspection. The Mi-Glow® 834 Fluorescent Magnetic Particle is the go-to fluorescent particle for your water based application. Borate free and pre-mixed with a premium wetting agent, it is safer and provides exceptional sensitivity. 

Circle Systems also manufacturers some unique products that really set them apart. The CircleSafe® 850A is a dual fluorescent and visible particle in aerosol cans. This product provides the ultimate flexibility when inspecting a variety of materials in different lighting situations. Also, the Sir-Chem® dry powders are available in 5 different colours to suit the preference of any inspector.

Splitter NDT is proud to represent Circle Systems, Inc. as our sole provider for magnetic particle inspection consumables. If you are interested in exploring quantity discounting for you MPI products, testing out product samples or have any further questions, please email us at

- Splitter NDT Team 

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