Heated plastic or plastic-lined tanks are often used due to the corrosive nature of solutions used in many different industrial processes, such as cleaning, plating, and etching of circuit boards and components in the electronics industry or in metal finishing and electroplating operations. Plastics most commonly used, such as polypropylene, polyethylene, polyvinyl chloride (PVC) and fiberglass reinforced plastic, have excellent corrosion resistant properties, however, they are highly combustible and tank heaters can present an ignition source. Without proper protection and maintenance, heated plastic tank operations can become a significant fire hazard. Fires involving the tank often spread to associated plastic piping and ductwork used for fume removal and surrounding areas.
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