Bituminous self adhesive waterproofing membrane


1mm thick preformed self adhesive modified bituminous membrane specifically designed for


  • Preformed thickness. Ensures application of a minimum and uniform thick membrane.
  • Easy and fast application. Same day screeding or backfilling. 
  • Seamless adhesion on overlaps. 
  • Resistant to chlorides, sulphates, dilute alkalis and acids. 
  • Good crack bridging ability. 
  • Good tear and puncture resistance.
  • Good resistance to hydrostatic pressure. 
  • Effective sealing of pin holes & blow holes.P

This TDS is applicable for the United Arab Emirates only. Please contact your local Polybit sales office for the available TDS in your region

Step by step

Application procedures may vary slightly depending upon site conditions. The general recommended guidelines for the application of the self adhesive waterproofing system are as follows:


The surface shall be cleaned thoroughly of all contaminants like dust, traces of curing compound, oil and grease. All surface imperfections and protrusions are to be removed and repaired.


Apply Polyprime SB* (Solvent based primer) @ 4- 6m²/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. As the viscosity of the primer is low, it easily penetrates into the concrete pores which in turn promotes the adhesion between the membrane and the concrete surface. In addition, the primer also acts as a binder for the dust which gets accumulated on the surface even after cleaning.


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 Bitustick Cool membrane and aligning the side laps. Re-roll the roll halfway and stand on the unrolled portion to prevent shifting.


Peel off the release film from the self adhesive side and start unrolling the membrane and press it to the surface. Smoothen out the membrane from the center to the edges in order to drive out entrapped air with a wooden press. Furthermore, an iron roller shall be used for rolling on top of the applied membrane to ensure a proper and strong adhesion of the bitumen compound with base surface. Side overlaps shall be a minimum of 50mm on the selvedge and end overlaps 100mm.


The membrane can temporarily be exposed for up to 3 weeks due to its white surfacing film. However physical damages to the membrane shall be taken care of during the exposure period. For areas where there are high concentration of coarse and sharp backfill aggregates, it is recommended to protect the membrane with a tough, weather, warp and rot proof asphaltic protection board (Bituboard). Bituboard can be fixed with a double sided adhesive bitumen tape