SikaBit® W-15

Brand : Sika

Product Type : Wet-applied, modified bitumen waterproofing membrane

Thickness : 1.5mm (± 10 %)

Packaging : 

• 1 meter  x  20 meters rolls on cardboard coil wrapped in woven plastic bag.
• 50 kg/roll
• 25 rolls/pallet

Product Description:

SikaBit® W-15 is a double-sided modified bitumen waterproofing membrane for wet-application. It consists of a cross-laminated PE film and two modified bitumen layers covered with silver release liners.

Usage:

SikaBit® W-15 is designed for non-exposed waterproofing application such as:

• Foundations
• Basement slabs and walls
• Podium slabs
• Concealed roofs

Features / Advantages:

• Safe, easy and fast installation
• No need for special equipment
• Direct application on wet substrate
• Excellent initial and long term adhesion
• Full surface bonding
• Zero water underflow
• Crack-bridging ability
• High tear resistance
• High puncture resistance
• Resistant to chemical corrosion

Shelf Life:

• 12 months from the date of production

Storage:

• Store in dry conditions between +5 °C to +35 °C. Rolls must be stored in their original package, in vertical position and under cool and dry conditions. They must be protected from direct sunlight, rain, snow and ice.

Technical Information:

• Tensile Strength : 4 N/mm (± 10 %)
• Elongation : 200 % (± 10 %)
• Resistance to tear : 23 N (± 10 %)
• Joint Peel Resistance : 700 N/m (± 10 %) - at 23°C
• Joint Shear Resistance : 220 N (± 10 %)
• Resistance to lateral water migration : 70 m (± 10 %)

Application Guide:

PRE-Application:

• Before installation, a layer of very smooth and solid cement concrete is required as a substrate.
• No standing water is allowed.
• Unroll and align SikaBit® W-15.
• The edges of the membrane are overlapped by min. 80 mm and firmly pressed together using a roller.
• The overlaps need to be staggered.
• After removal of the release liner a modified cement concrete screed is applied to all horizontal areas.

POST-Application:

• This method applies for waterproofing of walls, podium slabs and concealed roofs.
• Prior to the installation of SikaBit® W-15 the concrete needs to be saturated by water (use water hose). Any protrusions need to be removed and the concrete surface needs to be cleaned.
• A bonding adhesive SikaBit®-1 (with approximate of 2–3 kg/m2) is applied to the substrate.
• Then the SikaBit® W-15 membrane is unrolled and pressed into the fresh adhesive after removal of the release liner.
• The edges of the membrane are overlapped by min. 80 mm and firmly pressed together using a roller. The overlaps need to be staggered.

Click Here for Product Data Sheet