These band heaters wrap around 5 gallon metal drums, buckets or pails to warm their contents. Also known as drum heating belts, they have built-in thermostats and adjustable straps that allow them to set up quickly. Band heaters should be positioned below the fluid level to prevent damage to the heater. Pre-condition your materials with this pail heater. Depending on material viscosity, you may see improved pressure balance and ratio control by warming materials to reduce their viscosity. (Graco Part No. 16U623)