PURPLE K extinguishers contain specially fluidized and sili- conized potassium bicarbonate dry chemical which is particularly effective on Class B flammable liquids and pressurized gases. It is electrically non-conductive. Purple K has been the choice of oil, gas, chemical and utilities industries as the perferred fire fighting agent.
Class B
Flammable or combustible liquids such as gasoline, kerosene, paint, paint thinners and propane.
Class C
Energized electrical equipment, such as appliances, switches, panel boxes and power tools.