Profile: Lea Manufacturing Co. is a supplier of surface engineering products. We manufacture abrasive polishing compounds, barrelling and tumbling products. We specialize in cutting edge technology in most sections of the surface engineering industry. Learoks are our fine abrasive compositions with no free grease other than that required to hold the appropriate grain in a suspended state or as an aid to metal removal. Tripolea is our range of bars for use on non-ferrous metals and plastic. Tripoli abrasive grain is produced from a special type of naturally occurring silica which is particularly suited to the polishing and finishing of softer materials.