MAPEI Keraquick Maxi S1 Rapid-Setting Adhesive Mortar C2FT S1 25kg

MAPEI Keraquick Maxi S1 25 kg – fast-setting, deformable tile adhesive C2FT S1

Keraquick Maxi S1 is a fast-setting, highly deformable cementitious adhesive with improved slip resistance for tiles and natural stone. It can be grouted and walked on after just 2 to 3 hours – ideal when areas need to be put back into service quickly.

Due to its deformability (S1), it is suitable for large-format tiles, underfloor heating, outdoor areas, and swimming pools. For even higher deformability (C2F S2), it can be mixed with Latex Plus instead of water.

Scope of delivery: 25 kg bag, grey color.

Advantages of Keraquick Maxi S1

• Classification C2FT S1 according to EN 12004 / EN 12002
• Can be grouted and walked on after 2–3 hours
• Deformable – for underfloor heating and outdoor areas
• No vertical slip (T)
• Adhesive bed up to 15 mm
• Suitable for large-format tiles and swimming pools
• High tensile adhesion strength (approx. 3.0 N/mm²)

Typical areas of application

• Laying ceramic, porcelain, and natural stone on floors and walls
• Large-format tiles (over 900 cm²)
• Balconies, terraces, and outdoor areas
• Swimming pools and water basins
• Underfloor heating
• Renovations with short downtime

Technical data

• Mixing water: approx. 5.6 l per 25 kg bag
• Pot life: approx. 45 minutes
• Open time: approx. 20 minutes
• Ready for grouting / walking: after 2–3 hours
• Fully load-bearing: after approx. 24 hours (swimming pools after approx. 3 days)
• Max. layer thickness: 15 mm
• Application temperature: +5 °C to +30 °C

Consumption

Consumption is approx. 1.2 kg/m² per mm of layer thickness. For a 5 mm adhesive bed, you will need approx. 6 kg/m² – one 25 kg bag is therefore sufficient for approx. 4 m².

Application of Keraquick Maxi S1

1. Preparing the substrate

The substrate must be load-bearing, level, clean, and free from dust, oil, grease, and loose particles.

2. Mixing

Stir the contents of the bag into approx. 5.6 l of clean water and mix until lump-free using a low-speed mixer in a mixing bucket. Due to the pot life of approx. 45 minutes, only mix as much as can be applied quickly.

3. Applying the adhesive

First, apply a thin contact layer with the smooth side of the notched trowel, then apply the desired adhesive bed thickness with the notched side. Prepare only as much area as can be covered within the open time (approx. 20 minutes).

4. Laying the tiles

Lay the tiles and press them down firmly. In outdoor areas, for formats over 900 cm², and in swimming pools, lay using the buttering-floating method (applying adhesive additionally to the back of the tile) to ensure a void-free installation.

5. Grouting

Grouting can be carried out after 2–3 hours, e.g., with MAPEI Keracolor Plus or MAPEI Ultracolor Plus.

For orders of a full pallet of MAPEI Keraquick Maxi S1 or more, we offer free shipping within Austria for single-item orders.

Note: All information is taken from the technical data sheet of the manufacturer MAPEI. Please observe the current product and safety data sheet before application, which you can download at the bottom of this page.