Davco® K10 Plus

AS/NZ 4858:2004 Branz Test Report (DC13205-001)

Branz Appraisal Internal No.1142 (2020)

Branz Appraisal External No.1141 (2020)

12 months from date of manufacture

Store in dry cool conditions out of direct sunlight.

Do not allow the product to freeze.

40g/L (SCAQMD method 304-91)

Allow the membrane to dry for approximately 1-2 hours prior to applying the second coat.

Allow the membrane to dry for 6-8 hours prior to tiling or other finishes.

*Measurements are taken at 22°C and 50% relative humidity. Specifications vary according to site conditions and should be taken as a guide only.

The minimum dry film thickness required is 1.0mm.

This should be achieved by applying 2 coats at a rate of 1.45L/m².

A 20L pail will cover approximately 13.8m² with 2 coats (0.75mm per wet film thickness)

A 20L pail will cover approximately 22m2 with 1 coat (0.75mm per wet film thickness)

General

• All surfaces must be installed according to manufacturer's instructions and relevant Australian Standards and be structurally sound, dry, clean and free from movement, oil, grease, wax, curing compounds, release agents, efflorescence or any other loose or contaminating material.
• Prior to application, remove all sharp protrusions, which may pierce the membrane
• Avoid voids, potholes and divots in the substrate must be appropriately prepared with a Sika branded patching mortar.

Concrete

• All new concrete slabs must have a wood float finish and be allowed to cure for 6 weeks.
• Old concrete must be cleaned with a strong commercial grade detergent or degreaser. Residue must be thoroughly washed off with clean water. Allow the surface to dry for at least 24 hours.
• If the concrete has a steel trowel or power float finish, it must be mechanically prepared to expose the aggregate. Signs of Laitance and Efflorescence must be removed.

Cement Render & Screeds

• Rendered or screeds must have a wood float finish and be allowed to cure for 7 days.

Light Weight Blocks

• Prime the surface with 2 coats of Davco Ultraprime or Davco PrimeX

Metal drains and waterstop angles

• All metal surfaces must be free from rust
• Lightly abrade/ sand the substrate prior to application of the Davco® K10 Plus

PVC Control leak flanges

• Control leak flanges shall be recessed to avoid water pooling
• Lightly sand control leak flanges prior to waterproofing application

Bond Breaker

Any suitable Sika neutral cure silicone sealant

Connector Sealants

Any suitable Sikaflex PU sealant

Cracks - subject to movement (non structural)

• All cracks / joints, irrespective of their width, must be filled with a Sika branded Neutral cure silicone sealant. Then a 50mm wide polyethylene / polypropylene tape should be placed over the crack, ensuring it adheres to the surface.

Building Boards and Sheeting

• Standard wall / floor building boards must be primed with a suitable Sika Branded primer and firmly fixed in accordance to manufacturer instructions and applicable Australian Standards. Such boards / sheeting include plasterboard, fibre cement sheeting, marine grade ply and wet area composition board. Check with the board / sheeting manufacturer for their suitability.
• Screw or nail heads must be treated with a Sika branded epoxy or a Sika connector sealant
• All sheeting joints need to be covered with a 50mm wide Polyethylene / Polypropylene tape.

Falls to Drains

• In all wet areas, it is important that falls be provided to the drain outlet. The slope of this fall should be 1:80 - which equates to 12.5mm fall over 1m. For wet areas, balconies, and rooftops, if the existing substrate does not provide the required falls, a sand/cement screed will be need to be created. Once the falls are in place and screeds have cured, apply the Davco® K10 Plus as per instructions. Contact Sika Australia for more information on screed mix should this be required.
• For balconies and rooftops, the slope of this fall should be 1:100 – which equates to a 10mm fall over 1m. If the existing substrate does not provide the necessary fall, a sand / cement screed needs to be created. Once the screed is in place and has cured adequately, apply the membrane as per instructions below. Contact Sika Australia for more information on an appropriate screed mix should this be required.

Substrate Priming

All substrates shall require priming prior to the application of Davco K10 Plus.

Refer to primer product datasheet for additional information.

• Use a thick brush or a short nap roller to apply the first coat of Davco® K10 Plus on the area to be waterproofed
• Allow the first coat to dry for approximately 1-2 hours before applying the 2nd coat at 90° to the first coat. Ensure there are no pinholes or air bubbles on the membrane surface
• Apply a third coat only if necessary or required to do so
• Allow the final coat to dry for at least 6 hours before tiling (according to temperature conditions). This gives an overall drying time of 6-8 hours for the full application.

Note: The lower the temperature, the slower the drying time of
the membrane

• Tools and excess K10 Plus can be cleaned up with water while it is still wet