Waterproof coating TamSeal 800

leak-proofingpolymerfor concrete

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. Key Benefits Fast and easy application particularly for complex underground geometries. Waterproof: zero penetration beyond membrane when tested in accordance with BS EN 12390-8:2000. TamSeal 800 is safe, non-toxic and should be handled as per other cementitious construction materials. Excellent adhesion, bond to concrete and steel of 1.5MPa or greater when tested in accordance with BSEN ISO 4624:2003. When sandwiched between layers of concrete, the double bond (Example: To the primary concrete substrate and overlying secondary concrete) enhances the waterproofing performance. Tough and flexible and suitable for use with steel fibre sprayed concrete. Fast initial curing time, tack free in 2 to 3 hours. Fast complete curing time, can be over-coated with concrete after 24 hours. Exhibits excellent crack bridging capabilities when tested in accordance with BS EN 1062-7: 2004, with capacity proportional to thickness and 150% elongation when tested against ASTM D412-06a. TamSeal 800 is non-ignitable: Class E when fire tested against BS EN ISO 11925-2, single-flame source test. Unlike conventional coatings, which require the concrete to cure for 7 – 28 days, TamSeal 800 can be applied to 24 hour old concrete to give immediate protection.