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      Bituplus Ultra-Flex - Packshot

      Bitumen-tom (membranes, primers)

      POLYBIT BITUPLUS ULTRA FLEX
      SBS modified bituminous waterproofing membrane

      Elastomeric high performance bitumen based torch applied waterproofing membrane. The modified bitumen compound is blended with selected SBS polymers, which allows the membrane to remain flexible at -20 °C.
      • Remains flexible from -20°C to +60°C
      • Very high resistance against hydrostatic pressure
      • Suitable for applications in deep basements

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      SDSS (4)

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      Product Description

      POLYBIT® BITUPLUS ULTRA FLEX membrane is typically used for waterproofing / dampproofing of building basements , pileheads , concrete foundations, building Footings, bridge piers, bridge viaducts, underpasses , box culverts, retaining walls and holding tanks & reservoirs.
      Available pack size: 4mm
      • Remains flexible from -20°C to +60°C
      • Very high resistance against hydrostatic pressure
      • Suitable for applications in deep basements
      • Excellent adhesion on both horizontal and vertical surfaces
      • High mechanical strength and fatigue resistance properties
      • Good dimensional stability under tension
      Bituplus Ultra-Flex - Packshot
      Bituplus Ultra-Flex - Packshot

      How to Use

      SURFACE PREPARATION & PRIMING

      The surface shall be cleaned thoroughly of all contaminants like dust, traces of curing compound, oil and grease. All surface imperfections, protrusions, structurally unsound and
      friable concrete must be removed and repaired.
      Apply Polyprime SB* (Solvent based primer) @4-6 m²/L to a clean, smooth and dry surface by brush, roller or spray.
      Allow the primer to dry prior to the application of the membrane. The primer promotes the adhesion between the membrane and the concrete surface.

      ALIGNMENT & TORCHING

      Start the installation of all membrane plies from the low point or drains, so that the flow of water is over or parallel to the plies, but never against the laps. All overlaps at the membrane seams shall be installed so as to have “up” slope laps over “down” slope laps. Begin membrane application by unrolling the roll of Bituplus ULTRA FLEX membrane and aligning the side laps. Side overlaps should be a minimum of 100 mm and the end overlaps 150mm.
      Bituplus ULTRA FLEX membrane is installed by using a cylinder fed propane gas torch. Use of hand-held roofing torch is recommended as it affords a good control. Begin torching the embossed polyethylene side of the rolled portion of the membrane. As the membrane is heated the embossing starts to melt away exposing a shiny bitumen surface. Roll forward the membrane and press firmly with the boot or roller against the substrate to bond well. The propane flame should be moved from side to side and up the lap edge while the membrane is slowly unrolled and adhered to the underlying surface. Caution: Do not over torch the membrane as this will expose the reinforcement and cause damage to it.

      3.PROTECTION

      Bituplus ULTRA FLEX should be protected from getting damaged due to the ongoing site activities and during backfilling.
      Membranes laid on horizontal surfaces can be protected either by a cement sand screed (50mm thick) or by an asphaltic protection board (Bituboard)*. On vertical surfaces the membrane has to be protected with Bituboard. Bituboard can be fixed on the membrane by torching the underside of the board, or with a double sided bitumen adhesive tape (BITUTAPE TS)*.
      Please contact our technical service team for specific requirement.

      Frequently asked questions

      It is recommended using solvent based bitumen primer conforming to ASTM D 41

      Yes. It msut be protected from damages that may happen during the site activities.

      No. It is not necessary to use bonding agents or twin sided tape for fixing on torch applied membranes. It can be applied by torching.

      Works Well With
      • ${/content/heliux/adhesive/polybit/com/en/products/waterproofing-solutions/protection-membranes/product#/polybit-bituboard/SAP_0201W1P34GA5/searchResult.productFields.MainImageAltText}
        POLYBIT Bituboard

        A multi layer, asphaltic protection board manufactured by thermally bonding polymer modified bitumen with selected additives which, sandwiched between a layer of saturated fibre-glass on one side and anti-stick polyethylene liner on the other. 
      • ${/content/heliux/adhesive/polybit/com/en/products/waterproofing-solutions/bitumen-thin-coatings/product#/polybit-polyprime-sb/SAP_0201WEP345J0/searchResult.productFields.MainImageAltText}
        POLYBIT POLYPRIME SB

        A quick drying solvent based low viscosity bitumen primer. It is used as a primer coat on masonry and concrete substrates to improve the adhesion of bitumen based membranes and coatings. 

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      POLYBIT BITUPLUS ULTRA FLEX IS PART OF OUR BIM MODELS

      Building Information Modeling (BIM) is an innovative approach to the planning, design, construction, and management of buildings and infrastructure. This smart model is a common source of knowledge for obtaining information about a building and provides a reliable basis for decision-making throughout the entire life cycle of a building, from conception to demolition.
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