MEGA WATER STOP is a flexible PVC bars to seal constructions and expansion joints in concrete , complies with (DIN 1841 - BS 2571 . 2782 - ASTM . D. 2628).USES To seal constructions joints in swimming pools, reservoirs, canals, tanks and basements. To seal expansion joints in water structures, tunnels, retaining walls, etc...ADVANTAGES High quality thermoplastic PVC. Easily to install and easy to cut and weld. Suitable for high water pressure. Oil, petrol and Sulphate resistant. Multi rib sections with different types and sizes.DIRECTION OF USEChose the type of MEGA WATER STOP according to the type of joint and install using clip fasteners.The width of the water stop profile is preferably being little less or equal to the thickness of concrete slab.The width of the water stop should be at least 6 times the maximum size of the used aggregate.It is always preferable to place the water stop at the center of the concrete slab section.Special care should be taken when pouring and compactions of concrete around water stop.WELDINGSThe ends of MEGA WATER STOP should be heated with special welding machine until the PVC gets plastic (200° C) and then pressed together.Surface types are available on request.Shapes of Water stop