Sika Aqua Blok SBR is a waterborne, permanently flexible waterproof membrane designed for use under tiled finishes in various wet areas and on suitable primed surfaces. It can accommodate expected structural movement and offers excellent adhesion to a wide range of substrates. Available from ProTrade Warehouse across Australia.
Uses
Best for:
- Shower recesses
- Bathroom floor areas
- Laundries
- Kitchens
- Balconies
- Patios
- Steel (suitably primed)
- Concrete, cement render, plaster
- Wet area wall lining board
- Hardie/CSR sheet flooring
- Brick
- Light weight aggregate block
- Plasterboard, MDF
- Plywood sheet flooring
Features
- Permanently flexible - accommodates cracking in substrate
- Excellent adhesion to a wide variety of substrates
- Low VOC content
- Dries to a keyed finish to promote adhesion with tile adhesives
- Single pack
- Quick drying
- Safe and easy to use
- No priming required (for most porous substrates)
- Designed for use with a 12mm bond-breaker
Drying
Allow 4 – 6 hours between coats and 48 hours to dry before tiling (longer in adverse conditions).
Clean up
Clean tools with warm water and detergent while wet.
Packaging
15 litre plastic pails
Coverage
Floors - 2 litres per M2 at 1mm dry film thickness
Walls – 1 litre per M2 at 0.5mm dry film thickness
Tiling
Use an appropriate CTA Pty Ltd recommended tile adhesive.
Shelf life
Unopened pails can be stored for up to 12 months in a cool, dry and weatherproof environment, off the floor.
Safety directions
Wear gloves, mask, safety goggles, and protective clothing. Wash off skin contact with soapy water. Avoid dust inhalation (wear a mask, ensure ventilation). If swallowed, drink water and seek medical advice. For eye contact, rinse with plenty of water.
Limitations
- Not designed to stop hydrostatic water pressure.
- Must not be used over damp, wet, or contaminated substrates.
- Do not apply if raining or rain is imminent.
- Do not apply directly over protective coatings.
- Do not exceed the recommended coverage of 1 litre per m2 per coat.
- Tiling should occur as soon as the membrane has cured to prevent contamination or damage.
- Timber and particleboard flooring must be overlaid with fibrous cement sheeting.
- Not for use as a wearing surface for foot or vehicle traffic.
- Use only as recommended.
- Do not apply below 10°C or above 35°C surface temperature.
Surface preparation
All surfaces must be firm, clean, dry, sound, and smooth, with contaminants removed. Sheet materials must be fixed as per manufacturer directions. Concrete needs 28 days cure, render/screeds 7 days. Porous substrates require a water-based primer. Damp/non-porous need “Aqua Blok Epoxy Seal”. Apply neutral cure silicone as a bond breaker at joints and changes in direction. Fill sheet joints/fixings with silicone, then apply Aqua Blok 100mm either side. For cracks under 1mm, clean and fill with neutral cure silicone. For dynamic cracks/expansion/control joints, contact CTA Technical Department.
APPLICATION - Internal Wet Areas
Aqua Blok must be applied using a brush or roller.
A minimum thickness of 1mm dried film thickness of Aqua Blok is required for optimum waterproofing properties. The surface onto which Aqua Blok is applied must be continuous. Aqua Blok cannot span gaps. A minimum of two coats of Aqua Blok is required.
Shower Recesses
Apply Aqua Blok to the internal vertical corners of the shower using a brush extending at least 100mm either side of the joint. Ensure the corner is well coated. This must extend past the height of the shower rose. It is important to coat around the tap protrusions in the wall. The wall/floor joint must be coated with Aqua Blok. The membrane must extend onto the floor at least 100mm and onto the wall 100mm. Aqua Blok must extend a minimum of 25mm above the height of the hob. The walls should then be coated. Once the wall/wall junctions, wall/floor junctions, tap protrusions and walls are coated, then the shower floor must be coated. When coating the floor, the Aqua Blok must be dressed down into the floor waste a minimum of 50mm. The floor must be coated with the Aqua Blok ensuring a minimum dry film thickness of 1mm is achieved. Apply a final coat to ensure there are no imperfections in the membrane.
Walls of Wet Areas (excluding joints)
Aqua Blok must be applied at 0.5 litre per M2 per coat. The minimum dry film thickness must be a minimum of 0.5mm.
Floors of Wet Areas
Apply Aqua Blok to the wall/floor joints and sheet flooring joints and fixings using a brush, extending at least 100mm either side of the joints. Once these areas are dry, the entire floor area can be coated. Sufficient Aqua Blok must be applied onto the surface to achieve a 1mm dried film thickness. Aqua Blok must be applied at 1 litre per M2 per coat. Two coats are required.
Roofs
Aqua Blok is recommended as a waterproofing membrane for non-trafficable areas. Application is recommended as for “Floors of Wet Areas”. There must be sufficient falls for effective drainage to eliminate ponding.
DRYING
Allow 4 – 6 hours between coats. Allow 48 hours to dry prior to tiling. Allow longer in adverse weather conditions.
CLEAN UP
Clean tools and equipment with warm water and detergent while the membrane is still wet.
Get Sika Aqua Blok SBR flexible waterproof membrane from ProTrade Warehouse. Collect from any Sika warehouse or our Silverwater store. Delivery available Australia wide.
Colour Accuracy Disclaimer: We have taken care to display the most accurate visuals of our products. However, we are not responsible for the colour accuracy of the device you are viewing our swatches on. These variations arise due to different computer monitors and devices (make, model and technology, as well as resolution, contrast and brightness control settings) in much the same way a scan will differ from an original image and a colour photocopy. Furthermore, coatings can exhibit variation in perceived colour depending on gloss level and application method. If you require a very specific colour match, please make your selection via actual swatches and colour boards available at our showroom.
Product Disclaimer: Ensure you read all product, technical and safety data sheets prior to application as liability falls on the applicator. All products must be applied in accordance with manufacturer’s recommended method.
