PTFE Coated Heaters are one of the popular MAGMA Heaters that are manufactured to last for a lifetime. These immersion heaters are coated with PTFE (polytetrafluoroethylene). This makes the product completely corrosion-free. These have an in-built function, which turns off the product before it is exposed to open air. The PTFE Coated Heaters can be used in chemical solutions as well, however if the solution is nearer to top, then extra amount of steam and hazardous vapors will be created. The heaters with PTFE coating are commonly used in metal finishing tanks.