Dust is everywhere in composites manufacturing. If it’s not controlled, that dust can easily find its way into your eyes and lungs, causing irritation; into hard-to-reach areas, creating combustible dust hazards; and onto surfaces, leading to slip and fall incidents.

Here are five hazardous dusts commonly found in composites manufacturing.

Silica dust

As the American Composites Manufacturing Association (ACMA) notes, “Many composite raw materials and molded composite products contain crystalline silica.” These include: “sand, quartz, calcium carbonate, gypsum, dolomite, mica and other materials used in the production of cast polymer, engineered stone, tub/showers, and many other composite products.”

In small particles, crystalline silica becomes silica dust, which is respirable and is known to cause silicosis among other lung disorders.

In 2016, OSHA issued a new final rule limiting the permissible exposure limit for silica dust. OSHA began enforcing most provisions of the standard for construction on September 23, 2017, and began enforcing most provisions of the standard for general industry and maritime on June 23, 2018. Implementation of the rules for hydraulic fracturing go into effect June 23, 2018.

Carbon fiber dust

Carbon fiber dust is well known to be hazardous to electronics because carbon fibers are electrically conductive. If allowed to build up, this dust can short out computers and cause other digital device havoc. It’s also associated with lung damage in people.

Carbon nanotubes

Carbon nanotubes are 20 times stronger than carbon fiber. Unfortunately, research has shown that they’re also dangerous to human lungs as asbestos. Carbon nanotubes can also irritate the eyes and the skin.

Resin dust

Several types of resin dusts are common in composites manufacturing, and they aren’t all created equal in terms of hazardousness. For example, there are no adverse health effects associated with thermoplastic resins. However, dust from heated bismaleimide resin products can cause eye, nose, and throat irritation. And dust from polyurethane resin is highly toxic.

Combustible dust

Finally, even dusts that don’t pose exposure risks can still be hazardous because, if allowed to accumulate, they can become combustible. In fact, the ACMA staff wrote in an article for Composites Manufacturing Magazine that they were “not aware of any composites dust that did not test as hazardous [meaning combustible] using OSHA’s approved test methods.”

Exposure to these and other composites dusts can cause serious adverse health effects, ranging from dermatitis to lung cancer. One of the best ways to keep these effects at bay is to eliminate hazardous dust at the source. When the elimination of dusts at the source is not feasible, the next best solution is through use of dust collectors.

BlueSky Global has developed a new line of completely modular, completely mobile, dust collectors and air cleaners. These units can be delivered and dropped on site in a variety of configurations to meet your required capacities. From 5,000 to 60,000 CFM, BlueSky’s systems are completely scalable. And, with BlueSky’s patented SmartBox™ design, you never see or touch the dust or dirty filters.

The SmartBox™ module contains the captured dust and filters. It is never serviced or opened at the work site—it's removed as a sealed unit (think inkjet cartridge).

A SmartBox™ module exchange can be accomplished safely in less than 10 minutes and requires no special procedures, PPE or personnel monitoring.

For your industrial dust collection needs, think BlueSky Global….

No Bags. No Barrels. No Spills.