Henkel Bitumin Roll BITUSTICK
► Excellent adhesion to vertical and horizontal surfaces ► Provides protection against water and vapor ► Excellent resistance to chlorides, sulphates, alkalis and acids ► Good tear and puncture resistance ► Self adhesive. Requires peeling off the silicone film and applying on the surface ► Dimensionally stable DESCRIPTION Bitustick XLR is a polymer modified bitumen, self adhesive waterproofing membrane, reinforced with a dimensionally stable, rot resistant tough glass fibre carrier. Bitustick XLR conforms to the requirements of Bs 8102.
FIELDS OF APPLICATION :
Bitustick XLR is used for waterproofing and damp proofing of concrete structures. It can be used for both horizontal and vertical applications and for tanking below ground structures, subways and retaining walls.
APPLICATION INSTRUCTIONS :
The application temperature should be between 5°C to 55°C. Application procedures may vary slightly depending upon site conditions. The general recommended guidelines for the application of the self adhesive waterproofing system is as follows:
Surface preparation 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 with a suitable Polycrete* concrete repair mortar.
Priming 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. As the viscosity of the primer is low, it easily penetrates into the concrete pores which promotes the adhesion between the membrane and the concrete surface. In addition to that the primer also acts as a binder for the dust particles which gets accumulated on the concrete surface even after cleaning.
Alignment Start the installation of all membrane plies from the low point or drains, so 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 XLR membrane and aligning the side laps.
Application Peel off the release film from the self adhesive side and start unrolling the membrane and press it to the surface. Smoothen 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 the base surface.
Protection The membrane shall be protected from damage due to ongoing site activities or from aggregates during backfilling by a tough, weather, warp and rot proof asphaltic board (Bituboard / Bitustick R300/ Bitustick R400)*. Alternatively, in horizontal areas the membrane can also be protected by laying a cement sand screed (50mm). Bituboard can be fixed with a double sided adhesive bitumen tape (Watertite TS)* or Bitubond N.