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self-adhesive-membranes-sunanda-global

SELF-ADHESIVE WATERPROOFING MEMBRANES

Self-adhesive waterproofing membranes are thin layers allocated over a surface to prevent water from contacting other materials. Self-adhesive waterproofing membranes are mostly adhesive or laid on top of the material or structure they are supposed to protect.

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SUNPRUFE: Self-adhesive HDPE waterproofing membrane
  • Basement waterproofing
  • Waterproofing of cut and covered tunnels, subways, metros, and caves.
  • Other underground public constructions
  • For waterproofing and protection of slabs and confined walls below ground
  • Prevent coal gas, marsh gas, and methane leakage in the underground layer
  • Resistant to seawater, chlorides, and alkali
  • Chemical stability against common organic and inorganic acids, alkalis, salts, and organic solvents
  • Saving cost and time
  • No protection layer required
  • Fast installation
  • Excellent waste management
  • Anti-sedimentation and anti-cracking
  • It provides a complete barrier to water, moisture, and gas
  • Cold applied, easy to install, does not require primer or fillet
  • Solar reflection, being white in colour, thereby reduces temperature gain
  • Smooth surface membrane
  • Seals adhesively to concrete
  • Highly chemical resistant, effective in all types of soils and waters
  • Protect structures from chlorides, sulphates, and aggressive ground condition
  • Excellent bonding with concrete applied on the membrane
  • Low flatness requirement to a substrate; reliable overlapping; mechanical fixing, easy application
  • Sound anti-puncture performance and adaptability to settlement and distortion
  • SUNPRUFE membranes are supplied in rolls 1.2 m wide
  • The membranes incorporate dual adhesive layers with coloured zip strips
  • The strips are at the top and bottom of the seam area on the edge of the roll
  • This enables even stronger bonded laps between adjacent rolls
  • Both zip strips cover an aggressive adhesive
  • Remove the zip strip on the top and the bottom of the membrane
  • Once the strips are removed, a strong adhesive bond is achieved in the overlap area
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SUNPRUFE SBS: Self-adhesive SBS-modified waterproofing membrane
  • Industrial and civil buildings, basements, and tunnels
  • Underground pipe gallery, water conservation
  • Deck waterproofing
  • Excellent low-temperature performance, especially suitable for cold area applications
  • Good weather resistance, tensile property, high elongation, wear resistance, and excellent workability
  • Excellent adhesion to any vertical or horizontal surface
  • Polymer-rich compound, an easy and strong seal on overlaps
  • High mechanical strength and fatigue resistance properties
  • No curing time instantly waterproofs the substrate
  • Uniform thickness-eliminating likelihood of uneven application possible with a liquid-applied membrane
  • The surface should be cleaned thoroughly of all contaminants
  • Contaminants could be dust, traces of curing compound, oil, and grease
  • Remove and repair all surface imperfections, protrusions, and structurally unsound and friable concrete
  • The substrate must be moist but without stagnant water
  • Sprinkle water over the substrate if too dry
  • The application temperature should be between 5oC to 55o C
  • Apply a primer coat of SUNBITUPRIME at the rate of 10 sq m per kg and allow it to cure for 6-8 hours
  • On the primed surface, begin laying the membrane at the lowest point of the roof
  • Gradually move towards the higher areas
  • Unroll the membrane halfway, align the side laps
  • Fix SUNPRUFE SBS membranes by applying uniform pressure with a roller/wet cloth
  • The above application ensures the removal of entrapped air if any
  • An overlapping joint shall be provided of 80-150 mm in the longitudinal direction
  • Overlap joint shall be provided of 80-150 mm in the transverse direction
  • For a trafficable roof, the SUNPRUFE SBS waterproofing system shall be protected
  • Dose PCC with SUNPLEX of 50 mm thick tiles
  • The tiles are loosely laid or fixed over a separation layer of spot bonded geotextile of 120/150 GSM
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SUNPRUFE PVC: PVC waterproofing membrane
  • Basement waterproofing
  • Tunnel waterproofing
  • Podiums and covered roof waterproofing
  • Reservoirs, lakes, and canal lining
  • The Signal layer indicates damages due to handling and installation
  • Superior mechanical characteristics
  • Excellent tensile and elongation properties
  • Superior dimensional stability after heat treatment
  • Good flexibility at low temperatures
  • Excellent puncture resistance
  • Fast application, loosely laid on horizontal surfaces
  • Resistant to root penetration
  • Easy to handle, install and repair
  • Excellent impermeability to water ingress
  • Efficient hot air welded seam
  • Very high level of water tightness
  • Long life expectancy
  • Double weld of joints allows for a pressure test of joints
  • Resistant to bursting at a high water pressure
  • Lay geotextile/protective felt loosely as a base layer
  • For the horizontal surface, use suitable fixings given by the manufacturer over vertical or shotcrete surface
  • With an overlap of 50-100 mm joined by point welding or a similar suitable method
  • Lay SUNPRUFE PVC loosely laid on the horizontal surface over geotextile/protective felt
  • Lay SUNPRUFE PVC with roundels on the geotextiles/protective felt over vertical or tunnel surfaces
  • No perforation of the membrane shall be allowed
  • Ensure that the membrane is laid with a signal layer toward the inside
  • And with adequate slack to prevent over-stressing during concreting
  • Provide overlap joints of 75 mm in both longitudinal and transverse directions of the SUNPRUFE PVC
  • Make sure that joints are sealed properly with hot air welding only by a double weld
  • Terminate SUNPRUFE PVC at the top of the parapet wall with a termination strip
  • Fix it by screwing at 300 mm c/c
  • All termination strips shall be sealed with a water lock sealant and topped up by a suitable sealant
  • All seams should be tested using a suitable method of seam testing
  • Every care should be taken to protect the membrane during and after installation
  • Any damages may be repaired and tested before casting the final concrete lining
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FAQs

To stop water from coming into contact with other materials, self-adhesive waterproofing membranes are applied in thin layers to a surface. For the most part, self-adhesive waterproofing membranes are applied adhesively or over the material or structure they are meant to shield.
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