Davco® Powder Mastic

12 Months from date of manufacture if unopened

Store in off ground in dry cool conditions out of direct sunlight

C1TES1 - AS ISO 13007.1

Low VOC - 7g/L (SCAQMD method 304-91)

5-6 Litres of clean cool potable water per 20kg

2 Hours

30 Minutes

All measurements are taken at 22ºC and 50% relative humidity. Specifications vary according to site conditions and should be taken as a guide only.

20kg bag of Davco® Powder Mastic covers approximately 7 m² (based on a 10mm notch trowel)

• Personal protective equipment
• Mixing drill with stirrer attachment
• Notched trowel
• Mixing buckets

• All surfaces must be installed according to manufacturer’s instructions and relevant Australian Standard(s) and be structurally sound, dry, clean and free from movement, oil, grease, wax, curing compounds, release agents and any other loose or contaminating material. Thoroughly clean old surfaces, or new surfaces that have been treated, prior to tiling
• Deeply contaminated surfaces must be scabbled / abraded to a clean, sound surface. Expose at least 80% of the original substrate of painted surfaces
• Surfaces should be prepared and primed as per the following:

Refer to the primer product datasheet for additional information.

1. Measure the required amount of clean, potable water into a clean bucket. 
2. Slowly add the powder into the water while mixing with a mixing paddle attached to a drill. Always add the powder to the liquid. Do not mix by hand.
3. Continue to mix for several minutes until a creamy consistency is achieved, free of lumps of powder.
4. Allow mixture to stand for 5 minutes, remix then use the adhesive.

• Do not add any additional water during the adhesive's pot life, restir without adding water.

Laying the tiles

1. Deposit a quantity of adhesive onto the prepared substrate. Do not apply more adhesive than can be tiled within the open time of the product, usually from a single tile up to around 1m² at a time.
2. Hold the notched trowel at an angle of 60° or greater to the substrate.
3. Spread the adhesive over the area where tile is to be applied, forming straight rows of adhesive “beads”.
4. Where “back buttering” is required, use the straight side of the trowel to apply a thin covering of adhesive to the back of the tile.
5. Position the tile on the beaded adhesive and press firmly.
6. Move the tile forward and then back at 90° across the direction of the beads to ensure all beads are flattened leaving no voids under the tile. Occasionally lift a tile after placing it to check that the beads are fully compressed and that sufficient coverage has been achieved (90–100%). Replace the tile.
7. After laying a section at a time, remove any excess adhesive from the grout joint and the surface of the tiles with a damp cloth while the adhesive is still wet.

• Allow product to gain initial set before grouting
• Allow product to set firmly before return to service

Clean tools and equipment with water before the adhesive dries.