TamSeal 800
Overview
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.
Tough and flexible and suitable for use with steel fibre sprayed concrete.
Key specification
- High Performance Waterproofing Membrane
Key benefits
TamSeal 800 - High Performance Waterproofing Membrane
- 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.
- Can be connected to other waterproofing materials with standardised joint details.
Typical applications
- Sprayed concrete tunnel, shaft and cavern linings
- Underground basements
- Protecting concrete against aggressive water ingress
- Diaphragm wall and contiguous pile boxes
- Caverns
- Fixing tiles in water retaining structures
