Description
Ceresit ZU is a cement and lime based mortar that does two jobs from one bag: bonding EPS boards to the substrate, and forming the mesh-reinforced basecoat over them. Part of the Ceresit Ceretherm Popular system. One product on site instead of two means simpler ordering and fewer part-used bags left over.
Coverage
- Fixing boards: approximately 5.0kg/m²
- Reinforced layer: approximately 4.0kg/m²
- So roughly 9kg/m² for both stages — about 2.8m² per bag
Mixing and application
- 4.5 to 5.0 litres of clean water per 25kg bag, mixed with a low speed drill
- Pot life up to 90 minutes
- Apply at 5°C to 25°C
- Bond boards using the perimeter and dab method, covering at least 40% of the board
- Boards must also be mechanically fixed once the adhesive has set
- Rasp the boards flat before basecoating, then apply 3-4mm and bed the alkali-resistant mesh into the wet mortar
- Prime the cured basecoat with CT16 before the top coat
- Highly absorbent substrates such as aerated concrete should be primed with CT17 and left at least 2 hours
Specification
- Base: cement and lime with mineral fillers and modifiers
- Bulk density: approximately 1.3 kg/dm³
- Suitable for machine application
- Shelf life 12 months, stored dry on pallets in original packaging
- Contains cement — wear goggles, mask, gloves and coveralls
Doing a full elevation? The ZU pallet deal brings the price per bag down.
Buying from Pinks
Full Ceretherm system in stock — boards, mesh, beads, fixings, primers and top coats. UK-wide delivery or collection from our trade counter in Crawshawbooth, Rossendale.







