Henkel Bitumin Roll PLASTIFELT
► Excellent resistance to positive water & vapor pressure ►Good dimensional stability under tension ►Good flexibility. Can accommodate structural movements ►Resistant to water borne chemicals DESCRIPTION Plastifelt is a polymer modified bituminous waterproofing membrane, manufactured from a mixture of bitumen and selected polymers, which are blended together to obtain good waterproofing properties. The bitumen compound also exhibits high heat and UV resistance properties. The polymerized bitumen is coated on to a dimensionally stable reinforcement core of non woven glass fibre carrier.
Fields of application Plastifelt is used as waterproofing membrane on the following structures: – inverted roofs & parapets – terraces, balconies & patios – sunken slabs – bridges & tunnels – airport aprons & ramp areas Plastifelt membranes in tropical regions can also be used for waterproofing of below ground concrete structures like: – concrete foundations & footings. – basements – pile heads – swimming pools & water retaining structures (externally)
APPLICATION INSTRUCTIONS :
The application temperature should be between 5°C to 55°C. Application procedures may vary depending on site conditions. The general recommended guidelines for the application of the 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 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 Plastifelt membrane and aligning the side laps.Re-roll the roll halfway and stand on the unrolled portion to prevent shifting. Side overlaps should be a minimum of 100 mm and the end overlaps 150mm.