SikaBit® PRO P-45 G-0 MG (Exposed / 暴露)
Brand : Sika
Product Type : Plastomeric Modified Bituminous Waterproofing Membrane
Material : APP modified bitumen + non-woven polyester fabric
Appearance : Mineral granules (Top surface) , Polyethylene film (Backing)
Weight : ~4.5kg/m²
Packaging (Roll Size) :
- Length : 10 metres
- Width : 1 metre
- Weight : ~45.0kg (4.5kg/m²)
Product Description:
SikaBit® PRO P-45 G-0 MG is an APP modified, bituminous, torch-applied, waterproofing membrane. It is reinforced with a dimensionally stable non-woven polyester inlay. The underside has a thin polyethylene burn-off film for easy application. It can be applied to wood, metal and concrete substrates including over existing bitumen roofing membranes. Top surface finish: mineral granules.
Usage:
Waterproofing membrane for:
- Retaining walls and basements
- Flat roofs under protective layers or ballast
- Balconies and terraces under tiles
- Wet areas
- Underground car parks
- Raft slabs
- As a top sheet in a double layer roofing system
- Protection of various substrates in a wide range of applications
Features / Advantages:
- Good watertightness
- Good elongation and cold flexibility
- Good mechanical properties (tensile, tear, shear)
- Good resistance to impact
- Easy to install by torching method
- Choice of primers to suit substrate and weather conditions
Shelf Life:
- 12 months from the date of production
Storage:
- Store in original unopened and undamaged sealed packaging in dry conditions and temperatures between +5°C and +35 °C.
- Store in a vertical position.
- Do not stack pallets of the rolls on top of each other, or under pallets of any other materials during transport or storage.
- Always refer to packaging.
Technical Information:
- Resistance to Impact : ≥ 600 mm at +23 °C
- Tensile Strength :
- Longitudinal : 600 N/50 mm ± 20 %
- Transversal : 400 N/50 mm ± 20 %
- Elongation :
- Longitudinal : 30 % ± 15 %
- Transversal : 30 % ± 15 %
- Tear Strength :
- Longitudinal : 150 N ± 30 %
- Transversal : 150 N ± 30
- Joint Shear Resistance :
- Longitudinal : Min. 500 N/50mm
- Transversal : Min. 350 N/50mm
- Flow Resistance : ≥ 120 °C
- Water Tightness : 60 kPa
Application Guide:
Substrate Preparation:
- The supporting structure must be of sufficient structutal strength to apply all new and existing layers of the waterproofing build-up.
- When used as a roofing membrane, the complete roof system must be designed and secured against wind uplift loadings.
- The substrate must be uniform, firm, smooth and free of any sharp protrusion or burrs, clean, dry, free of grease, bitumen, oil, dust and loosely adhering particles.
Application Steps:
Step 1 : Priming
Apply the appropriate primer from the SikaBit® P or Sika® Igolflex® P range, at the correct consumption to the prepared dry surface and allow to dry before next application stage.
Step 2 : Alignment
Unroll, align, and re-roll correctly before torching.
Step 3 : Overlaps
Side : 80mm , End : 150mm
Step 4 : Torching
Use a gas burner to heat the substrate and the backing film on the underside of membrane. When the backing film starts to melt, the membrane is ready to stick.
Step 5 :
Roll the membrane forward and press firmly against the substrate to bond. Ensure a bead of melted bitumen is visible along the full length of the overlap sides and ends when laying.
Step 6 : Detailing
All details such as internal and external corners, upstands, vent pipes, drains, support metalwork etc. must be cut and sealed effectively.
