Rural Metro Fire crews responded to a chemical fire Rural Metro Fire responded to a chemical fire Friday morning. The fire started just after 7 a.m. at Playcraft Systems in the North Valley Industrial Park. When firefighters arrived, they found a burning dip tank on the side of the building. Crews were able to put the fire out using portable dry chemical extinguishers and water. The tank contained a mineral oil-based product called Die Slick 445X Lubricant, which is used in the final process of manufacturing at the facility. All workers were safely away from the area and no injuries were reported. Fire and smoke did not extend into the building and the business was able to stay in operation.