Fire spurs MSHA safety alert on polyurethane foam

Arlington, VA — An underground coal mine fire stemming from the injection of polyurethane foam into a roof cavity has prompted the Mine Safety and Health Administration to issue a safety alert.
This is a companion discussion topic for the original entry at https://www.safetyandhealthmagazine.com/articles/25649-fire-spurs-msha-safety-alert-on-polyurethane-foam