M-SEAL® VM1000 Heavy Duty Waterproofing and Voltage Isolation Membrane

• Fast and easy to install compared to conventional membrane systems. 
• A 2.7mm thick heavy duty self-adhesive membrane with excellent adhesion to the concrete substrate, for both floor and wall applications. No torch-on or hot-iron requirements needed for installation, so no harsh or hazardous fumes are created.
• Produced from a special SBS Modified Rubber composition with both the adhesive bottom layer and the special fabric top layer bonded during the manufacturing process.
• A heavy duty temperature, tear and puncture resistant fabric top layer for high performance bonding to concrete topping slabs, to cement screed layers and to cement wall render applications. Also prevents the migration of water between membrane and finishes.
• Provides excellent electrical insulation in both wet and dry conditions. Can withstand >5.0 x 10^14 ohm-cm.
• Bonds to most types of surfaces (concrete, steel, ceramic, PVC pipe) with the use of our recommended adhesive primer.
• Resistant to chlorides, sulfates, alkalis and acids.
• High crack bridging capabilities of up to 2mm.
• Resists 70m Hydrostatic Head Pressure.

• Railway station platform slabs and walls.
• Viaducts and Bridges.
• Power Stations and Utilities.
• Electrical Riser Rooms.
• Base slabs, walls and roofs.
• Retaining Walls.

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.

Refer to the Product Brochure for  this information.

M-Seal® VM1000 Membrane should be installed by an approved specialist installation contractor using trained personnel and using the correct installation tools and equipment. For each specific project installation, the approved installation contractor is to provide a full detailed installation method statement that has been approved by the project’s Professional Design Engineer and Project Manager, who have satisfied themselves that the membrane complies and conforms to their project’s installation and specification requirements. The full detailed installation method statement must be referred to and approved prior to the installation work commencing. The following information is for an indicative guide only and relates to use as a stand-alone membrane. For specific membrane application use and for electrical isolation membrane use, refer to CORKJOINT for further information and for full installation instructions and method statements.

Surface Preparation The concrete surface receiving the membrane should be well compacted, float finished and free from cavities and projections. All surfaces should be clean, dry, free from moisture, frost, surface laitance and contamination.

Priming Horizontal Surfaces. Apply an application of CJ-200 water-based adhesive primer at the rate of 8-9m2 per litre to the concrete surface and allow to become tacky to touch (15mins to 25mins depending upon the ambient temperature) before applying the membrane. 

Vertical Surfaces. As above. But, if a cement wall render is being applied onto the external fabric of the membrane, then use an application of CJ-300 solvent-based adhesive primer to the concrete surface and allow to become tacky to touch (15mins to 25mins depending upon the ambient temperature) before applying the membrane.

Application of Membrane Remove the protection release film from the rubber side of the membrane and apply the membrane onto the primed surface and press firmly into place using a medium to hard surface roller to ensure full bonding of the membrane is achieved and to make sure all air pockets are removed. For joining of the membrane, allow an overlap of 100mm and roll the joins firmly and continuously to remove all air pockets.

Exposure and Protection All locations of the installed membrane should be immediately protected by the installation of the topping slab or by appropriate installation protection boards/covers for slab areas and walls, cordoned off so at no time should the membrane be directly walked on, be damaged, punctured, pierced, dislodged, subject to traffic of any type, otherwise its function and performance maybe compromised or hindered. For areas of membrane that have been damaged prior to the topping slab or the cement wall render application, then refer to CORKJOINT for further information.

Note : The above is to be used only as a guide and refer to Corkjoint for full installation instructions and method.

• 2.5mm (thick) x 1.0 metre (wide) x 10.0 metre (long) roll
• Roll Weight: 25.4kg (approximately)

 The waterproofing and voltage isolation membrane where shown on the drawings, shall be M-Seal® VM1000 as supplied by CORKJOINT. The membrane system must be a special SBS Modified Rubber, have a minimum thickness of 2.7mm, be a fully bonded system that has self-adhesive properties for installation and has concrete crack-bridging capabilities of up to 2.0mm. The voltage electrical resistance levels must be >5.0 x 10^14 ohm-cm and testing must be carried out in accordance to ASTM D257 by a certified independent laboratory or Professional Electrical Engineer. The membrane is to be installed in accordance to the manufacturer’s required installation guidelines, and to the Professional Design Engineer’s specification.

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.

 CORKJOINT undertakes modifications to its product brochures on a continual basis, as and when required. Please check under the product summary section at www.corkjoint.com to ensure that you have the latest version of our product brochures.

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, M-SEAL® VM1000 in any application should be approved as suitable for use/application by the Design Engineer and Project Manager.