Davco CTF 99
Davco CTF 99 is an economical thin bed cementitious tile adhesive ideal for fixing ceramic tiles, natural stones and most monocottura tiles interior and exterior walls and floors.
- Excellent water resistance (when used with Davco Admix 99 Latex Additive)
- Easy Installation
- User friendly
Usage
- Installation of tiles and natural stones onto concrete render, blockwork and rendered brickwork surface
- For walls and floors in both interior and exterior applications
Advantages
- Excellent water resistance (when used with Davco Admix 99 Latex Additive)
- Easy Installation
- User friendly
Packaging
25 kg bag
Product Details
Shelf life
6 months from date of production
Storage conditions
Store properly in dry conditions, in undamaged and unopened, original sealed packaging. Keep away from direct sunlight, rain and moisture.
Tensile adhesion strength
| Standard condition | ≥ 0.5 N/mm² |
Application
Mixing ratio
5.75–6.25 L of water per 25 kg bag
Open Time
~20 minutes at 25 °C
Adjustability time
~15 minutes at 25 °C
Curing time
~24 hours at 25 °C
Consumption
This depends on the level, profile and surface roughness of the substrate, the size of the tiles and the technique of placing (simple placing or "back"-buttering).
As a guide, in kilogram of powder per m² on flat surfaces:
| Tiles size | Coverage | Trowel size |
| Mosaics and small tiles | ~2.0–3.0 kg/m² | 3 mm x 3 mm notched trowel |
| Normal size tiles (20 cm x 20 cm) | ~5.0–5.5 kg/m² | 6 mm x 6 mm notched trowel |
| Large size tiles up to 3 600 cm² (internal floors) and 2 100 cm² (external floors) | ~10.0–11.0 kg/m² | 12 mm x 12 mm notched trowel |
The consumption above may only serve as a guide. It is highly recommended to carry-out trials on site to determine the actual coverage.
MIXING
Pour clean water into a mixing container. Then, slowly add Davco CTF 99. Mix continuously in circular motion using low-speed mechanical mixer until a lump-free, creamy consistency and uniform paste is achieved.
Allow the mix to stand for 5 minutes and re-mix prior to use.
APPLICATION
Davco CTF 99 is spread onto the substrate using a proper and suitable notched trowel. The choice of trowel should be governed by the size of the tiles, depth of knobs, grooves or ridges on the back of the tiles and the evenness of the substrate.
Use the flat side of the notched trowel to spread the mix onto the receiving surface at approximately 1 m². Then, use the notched side of the trowel to apply the required amount of the mix in one direction.
Press the tile in a perpendicular motion and tapped into position to ensure positive contact with the adhesive and adjust within 30 minutes.
For tile with grooves or ridges, it is necessary to skim a layer of adhesive / butter coat the back of the tiles. This is to ensure good bonding and adequate coverage between the adhesive and tile.
Ensure that the adhesive is wet when the tiles are laid. Do not allow the adhesive to skin-over prior to tilling. Should skinning occur, break the skin by re-trowelling the adhesive in the opposite direction.
Do not spread more than 1 m² at any one time. Fix tiles within 15 minutes of applying the adhesive and check contact by occasionally lifting the tiles.
Ensure there are no voids under the tiles and leave adequate wall & floor joints.
For external tiling, protect from direct sun and rain by means of a shelter. It is the user’s responsibility to determine the condition and suitability of all surfaces prior to application.
Grouting
Tile joint grouting should preferably be carried out at least 24 hours after completion of tiling or until the adhesive has set and dry sufficiently.
Setting may be delayed on dense or impervious surface.
CLEANING OF EQUIPMENT
Clean all tools and application equipments with clean water immediately after use. Hardened or cured material can only be removed mechanically.