Surfaces must be prepared thoroughly before commencing. Surfaces are to be sound, stable, dry and clean, free of loose foreign matter including any surface residues or existing coatings. Buildings are to be constructed
to relevant building standards and manufacturer’s recommendations are to be followed for all building materials used.

Preparation:

Surfaces must be prepared thoroughly before commencing. Surfaces are to be sound, stable, dry and clean, free of loose foreign matter including any surface residues or existing coatings. Buildings are to be constructed
to relevant building standards and manufacturer’s recommendations are to be followed for all building materials used.

Application

Prime: Select appropriate primer if required and apply according to the primers instructions.

• Betta Prep Coat & Additive – for general porous vertical and horizontal building surfaces. Brush or roller apply primer to total surface area at a minimum coverage of 1 litre per 6m2 and allow drying for 30 minutes or once wet film dries to a clear transparent coating
• Betta Super Primer – for non porous, smooth and dense surfaces. Brush or roller apply primer to total surface area at a minimum coverage of 1 litre per 10m2 and allow to dry for 1 hour
• Betta Damp Stop – for surfaces with residual or rising damp. Apply by brush or roller in 1-2 coats at a minimum coverage of 1litre per 8m2 per coat. Allow to dry for a minimum 24 hours before applying membrane. Primer must be tack free before applying membrane.

Detailing:

Install Bond breaker System, This is a requirement to meet AS 3740 Australian Waterproofing Standards

Once the Elastic Joint Band is in place, apply Betta Under Tile Membrane to the total floor area and to walls at 150mm high in general wet areas and balcony decks, and at 1.8m high in shower alcoves. A continuous seamless membrane should be the final finish to the total area upon completion of the waterproofing membrane application.

MEMBRANE

For horizontal surfaces a minimum of 2 coats is to be applied at a total minimum coverage of 1.5 Litre/m2, forming a dried film thickness of approx 1.2mm. For vertical or pitched applications, coverage of 1Litre/m2 can be considered. Apply subsequent coats at different directions to the previous coat. Apply by roller, brush or spray unit.

• Tack Free: 1-2 hours
• Recoat: 3-4 hours
• Dry Film: 24 hours
• Wet Weather Exposure: 48 hours
• Ponding Water Exposure: 10 days
• Painting over: 72 hours

Clean up in water while wet. Once product is dried it needs to be removed mechanically