Abstract: On November 7, 2001, Employee #1, an employee of a construction company, was using a shop vacuum to remove water from a holding tank at a power plant facility. The shop vacuum ignited vapors from a coating material that had recently been sprayed onto the tank interior, prior to sandblasting. The coating material, PreTox 2000 Fast Dry, contains solvents classified as a Class IB flammable liquid. When the solvent vapors ignited, Employee #1 was expelled from the tank opening, suffering a broken femur, scalp lacerations, and upper torso burns covering 54 percent of his body. Employee #1 was released after approximately two months of hospital and care center convalescence and physical therapy.