Davco® TTB 98 (25kg) Cement Gum
Brand : Davco by Sika
Product Type : C1 thin bed cement-based tile adhesive
Size : 25kg
Colour : Grey or white powder
Product Description:
Davco® TTB 98 is an economical thin bed cementitious tile adhesive ideal for fixing ceramic tiles, natural stones and most monocottura tiles at interior and exterior walls and floors.
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
Features / Advantages:
- Easy to use
- Quick grip
- Can be used to lay tiles in wet areas such as shower floor and swimming pool after mixing with Davco Davelastic 98 latex additive
Shelf Life:
- 6 months from the date of production
Storage:
- Store properly in dry conditions, in undamaged and unopened, original sealed packaging.
Technical Information:
- Tensile adhesion strength :
- Standard condition : ≥ 0.5 N/mm²
- Water immersion : ≥ 0.5 N/mm²
- Heat ageing : ≥ 0.5 N/mm²
Application Guide:
- Mixing ratio : 5.75–6.75 L of water per 25 kg bag
- Open Time : ~20 minutes at 25 °C
- Curing time : ~24 hours at 25 °C
- Adjustability time : ~15 minutes at 25 °C
- Coverage for mosaics and small tiles : ~2.0–3.0 kg/m²
- Coverage for normal size tiles (20cm x 20cm) : ~5.0–5.5 kg/m²
- Large size tiles up to 3600cm² (internal floors) and 2100 cm² (external floors) : ~10.0–11.0 kg/m²
Application Steps:
Step 1 : Mixing
Davco® TTB 98 is spread onto the substrate using a trowel.
Step 2 :
Press the tile in a perpendicular motion and tapped into position to ensure positive contact with the adhesive and adjust within 30 minutes.
Step 3 :
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.
Step 4 :
Fix the tiles within 15 minutes of applying the adhesive and check the contact by occasionally lifting tiles.
Step 5 :
For external areas, protect from direct sunlight and rain by means of a shelter.
Step 6 : Grouting
Tile joint grouting should 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.
