Description
Davco Ultraflex is a premium grade, cement-based tile adhesive for walls and floors, supplied here as a 20kg bag for full tiling jobs. It is rubber modified, so it suits both rigid and flexible substrates, and it is rated for commercial work as well as home renovations.
About the formula
A powder adhesive that you mix with clean water and apply with a notched trowel. The rubber modification gives it extra flexibility over framed and sheet substrates. It is suitable for use over early age screed (cured for 24 hours) and over under-tile heating. It is classified C1S1E under AS ISO 13007 and has a low VOC content of 5 g/L (SCAQMD method 304-91).
Where to use it
Indoors: living and dining areas, walkways and office spaces, on both walls and floors.
Outdoors: external verandahs and decks, on both walls and floors.
Suitable tiles include porcelain, ceramic, mosaic, terracotta, slate, quarry, granite and marble. Suitable substrates include cement render, blockwork and rendered brickwork, plasterboard, fibre cement sheet, compatible waterproofing membranes, timber floors (with fibre cement tile underlay installed), new concrete (cured for 7 days) and new screed (cured for 24 hours). The adhesive is not suitable for translucent tiles or for moisture sensitive stone such as green marble.
How to use it
Make sure the substrate is sound, firmly fixed, clean and free of dust, oil and loose material. Prime the surface where the data sheet calls for it (for example plasterboard, fibre cement sheet, screed and timber floors with tile underlay), using the Davco primer the manufacturer recommends for that substrate. Mix the powder with clean potable water to a smooth, lump-free consistency, about 7 litres of water per 20kg bag. Spread the adhesive with a notched trowel suited to your tile size and press the tiles firmly into place. A 20kg bag covers about 12m2 when applied with a 6mm notch trowel, and less with larger trowels. Clean tools with water while the adhesive is still fresh, and wipe wet adhesive off tile faces with a damp cloth. Cured adhesive is much harder to remove.
Important notes
Allow 6 to 8 hours before grouting. Check the manufacturer's data sheet for substrate preparation, primers and movement joint requirements before you start. Store unopened bags off the ground in cool, dry conditions. Shelf life is up to 12 months when stored this way. If you plan to use it on a surface or in an application not covered by the data sheet, contact the manufacturer first.
Specifications
| Brand |
Davco |
| Product |
Ultraflex Premium Grade Cement-Based Tile Adhesive |
| Pack |
20kg bag |
| Base |
Cement-based, rubber modified powder |
| Application |
Mixed with water, applied by notched trowel |
| Coverage |
About 12m2 per 20kg bag (6mm notch trowel) |
| Time before grouting |
6 to 8 hours |
| Classification |
C1S1E (AS ISO 13007) |
| VOC content |
5 g/L (low VOC) |
| Use |
Interior and exterior, walls and floors, commercial and domestic |
Safety
This product contains cement, which is alkaline and can cause dermatitis. Wear PVC or similar gloves and safety goggles when mixing and applying. Avoid breathing in the dust when opening bags and mixing, and use suitable dust protection where needed. Wash skin with water after contact. Refer to the Safety Data Sheet (SDS) for full details.
