
Davco Gold Label
A flexible, thin or thick-bed, cement-based, rubber modified adhesive specifically formulated to bond to a variety of substrates.
- For thin & thick bed applications
- under tile heating applications
- High bond strength
- Flexible S1 performance
- Low VOC
- Extended open time
- Commercial grade
Usage
Davco Gold Label is designed for thin & thick-bed tiling applications both internally & externally. Suitable Substrates include;- Concrete (minimum 7 days)
- Screeds minimum 24 hours at 22°C
- Rendered block & brickwork
- Sika / Davco approved waterproof membranes
- Cement Sheeting
- Compressed cement boards
- Extruded cement boards
- Under tile heating systems
- Ceramic
- Porcelain
- Mosaic
- Terracotta
- Natural stone (non moisture sensitive)
- Quarry tiles
Advantages
- For thin & thick bed applications
- under tile heating applications
- High bond strength
- Flexible S1 performance
- Low VOC
- Extended open time
- Commercial grade
Packaging
20kg bags / 64 bags per pallet.
Colour
Off white powder with rubber crumb particles.
Product Details
ENVIRONMENTAL INFORMATION
Low VOC - 5g/L (SCAQMD method 304-91)
Product Declaration
C1ES1 AS ISO 13007 Classification.
Shelf life
12 Months from date of manufacture.
Storage conditions
Store in dry cool conditions, out of direct sunlight off ground.
*high humidity will reduce shelf-life.
Density
1.4kg/Litre
Application
Mixing Ratio
7 Litres of clean potable water per 20kg bag
Layer Thickness
Maximum layer thickness shall be no greater than 10mm.
Pot Life
1.5 Hours
Open Time
30 Minutes
Applied Product Ready for Use
Set time before grouting | 24 hours |
Set time before dry area service | 24 hours |
Set time before wet area service | 7 days |
*Setting times are affected by site conditions, climate and could be faster or slower than specified.
Consumption
a 20kg bag covers approximately 12m2 with a 6mm notch trowel.
EQUIPMENT
- Mixing pail
- Mixing drill with stirring attachment
- Trowels
Select a trowel with a suitable notch size for the tile size and type as per the following:
Tile Size | Trowel notch size | Back buttering required |
Mosaics | 4-6mm | No |
150x150 | 6mm | No |
200x200 300x300 400x400 and over *Tiles with lugs or uneven backs *Translucent tile | 8mm 10mm 12mm *As above dependent on size *As above dependent on size | No No Yes Yes Yes |
MIXING
- Measure the required amount of clean potable water into a bucket (5-6 Litres per bag).
- Slowly add the powder into the water while mixing with a mixing paddle attached to a drill (Max 500 RPM). Do not mix by hand.
- Continue to mix for 2-3 minutes until a smooth, limp free creamy mixture is achieved.
- Allow the mixture to stand for 5 minutes then re-stir for an additional minute.
*Adhesive may need restirring during the potlife, do not add more water.
APPLICATION
Laying the Tiles
- Place the adhesive onto the prepared and primed substrate. Do not apply more adhesive than can be tiles within the open time of the product, usually from a single tile to 1m2.
- Hold the notched trowel at an angle of 60° or greater to the substrate.
- Spread the adhesive over the required area where tile is to be applied, comb the adhesive in a single direction (not swirls).
- Where "back buttering" the tile is required, use the flat side of the notched trowel to apply a thin adhesive layer to the back of the tile (approx 1-2mm thick).
- Place the tile into the combed adhesive and press the tile firmly.
- Move the tile forward and then back at 90° across the direction of the combed adhesive to flatten the adhesive to leave no voids under the tile. Occassionally life a tile to check the adhesive covers 90-100% of the tile.
- Remove any excess adhesive in the joints, and on the face of the tile with a sponge and water while the adhesive is still wet.
- Do not allow the adhesive to skin prior to placement of the tiles. If the adhesive skins, remove and replace.
- Application shall be in accordance with AS3958.1
- Movement joints shall be installed in accordance with applicable standards.
- Back buttering the tiles may be required to achieve minimum coverage requirements.
- Allow the adhesive to dry prior to grouting.
CLEANING OF TOOLS
Tools and equipment can be cleaned with water prior to adhesive drying.