CJSA Hydro-Stop® CJ-5000 Chloroprene Rubber Hydrophilic Waterstop is produced from a unique hydrophilic chloroprene rubber sealing compound which expands in a controlled fashion when exposed to moisture to form a gasket and compression seal inside the concrete joint, to give a permanent flexible watertight seal. Hydro-Stop® CJ-5000 is capable of sealing heads of water up to 60 metres (6.0 Bar) in ground and salt water environments.
Hydro-Stop® CJ-5000 is ideal to be used in horizontal and vertical construction joints for cast in-situ concrete structures and pre-cast elements.
Hydro-Stop® CJ-5000 complies to NSF/ANSI Standard 61 Drinking Water System Components – Health Effects, ensuring Hydro-Stop® CJ-5000 is safe for use in drinking water applications. Therefore, it is suitable to use in various potable water retaining structures like water tanks, swimming pools and reservoirs.
Note: The product’s design and performance, its intended use, installation and final confirmation and approval for use, must be provided by the project’s Design Engineer and Project Manager.
Note: The above Physical Property results are obtained from our internal Certificate of Analysis (COA) testing from a specific batch. Material properties can vary between batches.
Figure 1: Expansion rate properties of Hydro-Stop® CJ-5000 in various solutions
Figure 2: Before and after expansion of Hydro-Stop® CJ-5000
Note: The above test reports are available upon request.
Note: Refer to above minimum concrete cover requirements. Please refer to CJSA for further information.
Due to expansive forces, Hydro-Stop® CJ-5000 should be both detailed and installed with a minimum 50mm clear cover to the face of the concrete. Expansion rate can vary in salt and contaminated water. Increase cover when using light weight, low strength concrete. Not for use where excessive shrinkage of the concrete may occur at the joint faces. Do not stretch the Hydro-Stop® CJ-5000 during installation. Not for use in movement (expansion, isolation and contraction) joints.
Hydro-Stop® CJ-5000 – 20mm x 10mm x 10m rolls (8 rolls per carton)
Hydro-Stop® CJ-5000 requires a minimum 50mm cover of concrete from the outside edge.
For a smooth concrete surface:
For a rough concrete surface:
For rough concrete surfaces where the Hydro-Stop® CJ-5000 cannot conform to the irregularities of the surface, the use of Leakmaster hydrophilic sealant must be applied instead of CJ-100 Adhesive. Depending upon the roughness of the concrete, apply a continuous 10mm to 20mm diameter bead of Leakmaster onto the surface. Once applied, with the use of your thumbs or heel of your hand, firmly press a continuous bead of Hydro-Stop® CJ-5000 into position, making sure you achieve full contact with the Leakmaster on the concrete surface. Do not stretch the Hydro-Stop® CJ-5000 when applying it into position.
Note: All other points above from number 3 to 9 also need to be applied.
Hydro-Stop® CJ-5000 is to be adhered to the 1st pour of concrete with CJ-100 Adhesive. A clean, dry surface free from dust, debris, etc, is required. Apply one application of adhesive onto the concrete surface and one application onto one side of the Hydro-Stop® CJ-5000.
Once both surfaces are touch dry, lay the Hydro-Stop® CJ-5000 into position and push firmly down with your fingers. If the surface is rough then you may need to use a firmer hand pressure to make sure that the product has full contact with the surface of the concrete.
Note: The above test reports are available upon request.
Waterstops where shown on the drawings shall be Hydro-Stop® CJ-5000 Chloroprene Rubber Hydrophilic Waterstop as supplied by CJSA. The waterstop is to have a built-in expansion control system to minimise any pre-expansion prior to the second pour taking place and be able to withstand up to 60 metres (6.0 Bar) hydrostatic head pressure resistance. The waterstop is to be placed in accordance with the manufacturer’s installation guidelines, and the design engineers specification.
In confined spaces or in still air conditions, the use of a ventilation fan or suitable respirator should be used, and the advice and approval of the Site Safety Supervisor is essential. For further information or advice on health and safety precautions, safe handling, storage and correct disposal of products, please refer to the most recent product Safety Data Sheet (SDS), which is available upon request.
The information and the recommendations relating to the application and end use of this product are given in good faith and are based on the information provided by the manufacturer of the product and/or the Company’s current knowledge and experience in connection with the product when properly stored, handled and applied under normal conditions and no liability of final function at the job site is assumed. In practice, the differences in materials substrates and actual site conditions are such that no warranty in respect of merchantability of or fitness for particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written and/or oral recommendations, or from any other advice offered by the Company.
The Company also has no express or implied knowledge of any particular purpose for which the product is required and any such information given will not be taken into account in the supply of this product. No responsibility or liability by the Company will be accepted for misuse, misreading or derivation from recommended guidelines in respect of this product and the user shall determine the suitability of the product for his intended use and assume all risks and liability in connection therewith. The information contained in our brochure may change at any time without notice. Any use of this product; Hydro-Stop® CJ-5000 in any application should be approved as suitable for use/application by the Design Engineer and Project Manager.