Davco Ultraflex Pro
A premium grade, flexible, cement based, rubber modified cement based tile adhesive suitable for a variety of substrates.
- Commercial grade
- Thick or thin-bed applications
- Low VOC
- Flexible S1 Performance
- Extended open time
- Non slump
- For rigid & flexible (framed) substrates
Usage
Davco Ultraflex Pro is suitable for both thin & thick-bed tiling applications. Davco Ultraflex Pro is suitable for use internally & externally of both wall and floor substrates. Suitable substrates include;- Concrete Minimum 7 days old at 22°C
- Screeds minimum 24 hours old at 22°C
- Fibre cement sheeting
- Compressed cement boards
- Extruded cement boards
- Sika / Davco approved waterproof membranes
- Rendered block or brickwork
- Under-tile heating systems
- Timber floors (sheeted with fibre cement sheeting)
- Ceramic
- Porcelain
- Mosaic
- Slate & Quarry Tiles
- Natural Stone (non moisture sensitive or translucent)
- Terracotta
Advantages
- Commercial grade
- Thick or thin-bed applications
- Low VOC
- Flexible S1 Performance
- Extended open time
- Non slump
- For rigid & flexible (framed) substrates
Packaging
20kg Bags / 64 per pallet.
Colour
Off white powder with rubber crumb particles.
Product Details
ENVIRONMENTAL INFORMATION
Low VOC 5g/L (SCAQMD Method 304-91)
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.
Product Declaration
C1ES1 AS ISO 13007 Classification.
Tensile Adhesion Strength
| Test | Ultraflex Pro |
| After 28 Days | > 1.0 N/mm2 |
| After heat exposure After water immersion | > 0.5 N/mm2 < 1.0 N/mm2 > 0.5 N/mm2 < 1.0 N/mm2 |
Transverse deformation
>2.5mm <5mm
Application
Mixing Ratio
6-7 Litres of clean potable water per 20kg bag.
Layer Thickness
Maximum Layer thickness shall be no greater than 10mm.
Ambient Air Temperature
Min +5°C to Max 35°C
Substrate Temperature
Min +5°C to Max 35°C
Pot Life
1.5 Hours
Open Time
30 Minutes
Adjustability Time
20 Minutes
Applied Product Ready for Use
| Set time before grouting | 6-8 hours |
| Set time before dry area service | 24 hours |
| Set time before wet area service | 2 days |
All measurements are taken at 22°C & 50% relative humidity. Specifications vary according to site conditions and should be taken as a guide only.
Consumption
A 20kg bag covers approximately 12m2 with a 6mm notch trowel.
EQUIPMENT
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 (6-7 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 restir for an additional minute.
*Adhesive may need re-stirring 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. Occasionally 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 & equipment can be cleaned with water prior to the adhesive drying.