Asbestos Used in Millboard

Millboard is a type of wallboard used to provide insulation and protect from fire and heat. Most types of millboard were made with asbestos–a material that is now known to be carcinogenic and responsible for diseases such as mesothelioma.

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Asbestos in Millboard Explained

Asbestos-containing millboard is no longer legal to produce or use. Asbestos was added to millboard between 1896-1965 because of its heat-resistant properties and easy accessibility.

Crocidolite (blue) and chrysotile (white) asbestos was used in the production of millboard it made the protective boarding resistant against fire and heat. The product was cheap to produce and easy to install, making it the ideal component for a variety of buildings.

In the mid-1960’s people began to realize that millboard’s low density meant it was easy to break. Once the board’s surface was damaged, asbestos fibers could quickly disperse into the air and become inhaled. When asbestos fibers enter the lungs, there is a significant risk of the fibers becoming embedded in the pleural lining–this can lead to a cancer known as mesothelioma.

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Exposure to asbestos has led to thousands of mesothelioma diagnoses. If you’ve been diagnosed with mesothelioma, the Mesothelioma Justice Guide will help you understand your rights and know the next steps.

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Who Was Exposed to Asbestos in Millboard?

Asbestos millboard was used in the manufacturing of stoves and heaters as a way to manage fire safety. It was also frequently used on electrical appliances to prevent sparks from igniting and leading to a fire.

Millboard was produced in sheet-form, with each piece thin and easy to break. The thin material put construction workers and those creating the millboard sheets in factories at risk of asbestos fiber inhalation. If these workers were not provided with safety equipment, it could have put their lives at great risk.

Those who were most at risk of contact with asbestos millboards were those in the construction industry. People who worked on the installation or repair of buildings may come into close contact with millboard on a daily basis.

Professions where close contact with millboard was likely:

Asbestos-containing millboard is no longer used in new buildings,  but it may remain in historical buildings. If a tradesman (e.g., an electrician) is working in an older building, they must be careful and safely remove old asbestos according to the laws of the specific state.

The older the millboard becomes, the more the asbestos fibers break down and become friable–they can become airborne at the slightest disturbance. It is essential that workers use the correct apparatus and wear safety clothing when removing asbestos millboards. Safety equipment prevents carrying asbestos fibers home on their clothing, shoes and hair.

Access Asbestos Trust Funds

Compensation for treatment, loss of income and other damages are available through Asbestos Trust Funds. Mesothelioma patients exposed to millboard asbestos may qualify.

Find Out If You Qualify

Health Risks of Asbestos in Millboard

Asbestos is a natural mineral that has been mined for generations. Asbestos is an excellent protector against heat and fire, and also works well as an insulator against the cold. The negative qualities of asbestos far outweigh the positive.

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Inhaling Toxic Fibers

Tiny asbestos fibers are almost invisible to the naked eye. When they do become airborne, it is difficult to know if you were in danger of inhaling the toxic fibers.

When asbestos is inhaled, the small fibers can become embedded in the lining of the lungs, heart and stomach. Over time, this causes tumors known as mesothelioma. Some patients who develop mesothelioma must receive a course of chemotherapy, radiotherapy or both, followed by a significant procedure.

There is no known cure for mesothelioma, but clinical trials are happening all over the world in the hope of a scientific breakthrough.

Seeking Justice for Mesothelioma

Many people who develop mesothelioma will have come into contact with asbestos during working hours. The dangers of asbestos have been known for many years, so if you believe that you have contracted the disease through your employment (past or present), you may be eligible for compensation.

Contact a lawyer who works with mesothelioma victims to elevate your case. Compensation will help towards medical costs and loss of earnings. If you require support, please contact our Justice Support Team. Call (888)360-4215 or request our FREE Mesothelioma Justice Guide, to help you understand how you may have been exposed to asbestos in millboard.

Mesothelioma Support Team
Stephanie KiddWritten by:


Stephanie Kidd works tirelessly as a dedicated advocate for the vulnerable and underrepresented. Stephanie worked as a copywriter for an agency whose focus was communicating safety procedures on construction work sites. With her extensive background in victim advocacy and a dedication to seeing justice done, Stephanie works hard to ensure that all online content is reliable, truthful and helpful.

View 3 Sources
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  2. Master photo guide to asbestos-containing products and materials. (2018, August 4). Retrieved from
  3. Asbestos Background Information. (2018, August 4). Retrieved from
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