NippoJOINT is designed to provide an integral sealing system for expansion (EJ Series) and construction joints (CJ Series) in cast in-situ concrete. It is extruded from a pure and premium quality virgin PVC materials which is formulated to provide excellent flexibility and durability characteristics.
NippoJOINT is designed using valve and tortuous path principles. The valve acts as baffles, in the event of joints opening as drying shrinkage or other movement occurs, the edge of valve acts as anchors, including the tensions across waterstop resulting in a sealing effect at the inner faces of the edge valve. The tortuous path profile provides greater resistance and more difficult path for water to seep around the cross section.NippoJOINT products offer a fully continuous 4 bulbed design maintaining both the valve and the tortuous path principles.
NippoJOINT has centrally place and externally place design, all centrally placed design incorporates an eyeletted, reinforced edge flange, this enables the waterstop to be easily positioned by wiring to surrounding reinforcement.
NippoJOINT with center bulb sections design is used for expansion, contraction, movement joints. The center hollow bulb allows for movement in a structure to be accommodated whilst its hexagonal design provides flat surface which allows shuttering and joint fillers to fit firmly.
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