We specialize in refining lightweight material like vacuum bags, carpets, sweeps and grindings from dental labs. Most refiners simply incinerate this material prior to melting it down in their furnace. While this may seem like a proper refining technique, it allows for a significant amount of lightweight precious metal to escape into the refinery’s exhaust system resulting in significantly reduced yields and payments. The refiner will cash in 6 months down the road when they clean out the filter bags from their exhaust system.