Substrate Priming Chart
Application | Primer |
General Priming | SikaTile 010 Secure Prime |
Green screeds or renders | Sikalastic® Moisture Seal |
Autoclaved Aerated Concrete | SikaTile 010 Secure Prime |
Existing tiles | Sika® Prep n Prime |
Refer to the primer data sheet for additional information.
Static Cracks - not subject to movement
- Small hairline cracks, up to 1mm wide, may be filled by the first application of SikaTile®-110 Secure Proof
- For cracks / joints wider than 1mm, a joint filler should be applied along the length of the crack prior to the application of SikaTile®-110 Secure Proof
Non Dymanic Cracks - less than 3mm subject to movement
All cracks / joints, irrespective of their width, must be filled firstly with the bond breaker sealant. Then 50mm wide polyethylene / polypropylene tape should be placed over the crack, ensuring it adheres to the surface. Apply the SikaTile®-110 Secure Proof over the tape as per installation instructions.
Bond Breaker & Connector Sealants:
Suitable Bond Breaker sealant: Any Sika® neutral cure silicone sealants
Suitable connector sealant: Sikaflex fillet
The sealant applied must be tooled off to form a 12 mm wide bond breaker. A bond breaker must be installed at areas subject to movement, wall/wall junction, wall/floor junction, sheet joints and seams, penetrations and where there is a change in the direction or substrate type.
Falls to Drains
In all wet areas, falls must be provided to the drain outlet. The slope of this fall should be 1:80 – which equates to a 12.5mm fall over 1m. For wet areas, balconies and rooftops, if the existing substrate does not provide the necessary falls, a sand / cement screed needs to be installed. All other wet areas shall have falls of 1:100 as per AS 3740:2021 Wet Area Membranes.
For balconies and external applications, 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 installed.