TamSeal 800 is a high performance, single component EVA polymer, flexible waterproofing membrane. In large applications, TamSeal 800 can be spray applied using a dry rotor machine by hand or robotic spraying. For smaller applications it can be applied by brush. TamSeal 800 provides a tough, durable, seamless, waterproofing membrane for many structures including tunnels, shafts and caverns.