Four Things to Look for in a Sealcoat Machine
Match the Pump to the Mix. There are three types of pumps you'll find with sealcoating machines: Bowie, diaphragm and hydraulic-powered piston pumps. A Bowie, or gear pump, can be used to pump mixes with 5 to 6 pounds of sand per gallon. Unfortunately, Bowie pumps tend to lose suction over time, so they are not ideal for modern sealcoating ...