This thick paper product presented ridges that created pouches of air aiding in insulating steam pipes. Sometimes, corrugated paper was used in storage boxes in order to provide strength to these cardboard containers. Asbestos fibers were used to line this product, increasing its strength and flexibility.
In the case of corrugated paper, asbestos exposure happened when the worker intentionally or accidentally ripped or damaged the paper in any form, releasing the microscopic asbestos particles into the environment. Also, there were cases where the material turned friable over time. You could have been exposed if: