Mapei · Tile adhesiveNo. 04 / 47
Keraflex Maxi S1
High-performance, deformable cementitious adhesive with extended open time and no vertical slip, especially suitable for large-size porcelain tiles and natural stone.
High-performance, deformable cementitious grey or white adhesive, with extended open time and no vertical slip, very low emission of volatile organic compounds and with fully offset residual Greenhouse Gas emissions. Especially suitable for the installation of large-size porcelain tiles and natural stone
- Bonding all types and sizes of ceramic tiles (double-fired, single-fired, porcelain tiles, klinker, terracotta, etc.) at thickness up to 15 mm on irregular internal and external substrates and render without skimming the surface prior to bonding
- Bonding stone on internal and external surfaces (stable stone, not sensitive to humidity)
- Bonding all types of mosaic on interior and exterior surfaces, also in swimming pools
- Overlaying ceramic and stone on existing floors (ceramic, marble, etc.)
- Bonding floors subjected to intense traffic
- Bonding tiles and strips with profiled or hollow backs (porcelain tiles, klinker, single-fired, and terracotta) on internal and external surfaces
- Installing tiles on precast concrete walls and concrete substrates
- Bonding tiles in swimming pools and tanks
- Class
- C2TES1
- Consumption
- 1.2 kg/m² per mm of thickness
- Packs we stock
- 20 kg · 25 kg
- Colour
- Grey
Coverage calculator
How much you need.
The arithmetic uses Mapei's published consumption for Keraflex Maxi S1 and the pack sizes we stock. Set your own wastage allowance.
You need
x 25 kg bag
- Data sheet quantity
- 120 kg
- With 10% wastage
- 132 kg
The figures behind it.
- 1.2 kg/m² per mm of thickness.
Consumption on site depends on the substrate, the tool and the applicator, which is why wastage is yours to set. The result is a quantity to plan and quote with, not a guarantee of coverage. Confirm the system against the current Mapei technical data sheet before ordering.
Application
Where it is used.
In Mapei's own words, from the technical data sheet.
- 01Bonding all types and sizes of ceramic tiles (double-fired, single-fired, porcelain tiles, klinker, terracotta, etc.) at thickness up to 15 mm on irregular internal and external substrates and render without skimming the surface prior to bonding
- 02Bonding stone on internal and external surfaces (stable stone, not sensitive to humidity)
- 03Bonding all types of mosaic on interior and exterior surfaces, also in swimming pools
- 04Overlaying ceramic and stone on existing floors (ceramic, marble, etc.)
- 05Bonding floors subjected to intense traffic
- 06Bonding tiles and strips with profiled or hollow backs (porcelain tiles, klinker, single-fired, and terracotta) on internal and external surfaces
- 07Installing tiles on precast concrete walls and concrete substrates
- 08Bonding tiles in swimming pools and tanks
Where it is not the right product.
- On not sufficiently cured concrete
- On wood or wooden conglomerates
- On metal, rubber, PVC, and linoleum surfaces
- For slabs of marble and natural stone which are subject to efflorescence or staining
- With natural stone or composite slabs subject to movements caused by dampness
Specification
Technical data.
- EN 12004 · C2TES1
- ISO 13007-1 · C2TES1
- EMICODE · EC1 Plus - very low emission
- Colour
- grey and white
- Mixing ratio
- 100 parts in weight of Keraflex Maxi S1 with 28-30 parts in weight of water
- Density of mix
- 1600 kg/m³
- Pot life of mix
- more than 8 hours
- Application temperature
- +5°C to +40°C
- Open time
- > 30 minutes
- Adjustment time
- approximately 45 minutes
- Grouting joints in wall tiles
- after 4-8 hours
- Grouting joints in floor tiles
- after 24 hours
- Set to foot traffic
- 24 hours
- Ready for service
- 14 days
- Deformability according to ISO 13007-1 and EN 12004
- S1 - deformable (> 2.5 mm, < 5 mm)
Typical values as Mapei prints them in data sheet edition 56-7-2026 (UAE). They are not a specification for your project: the current Mapei data sheet is.
On site
Packs, mixing and storage.
- We stock
- 20 kg · 25 kg
- Mapei packaging
- Keraflex Maxi S1 is supplied in grey and white 25 kg bags.
- Mixing
- Use approximately 7-7.5 litres of water for each 25 kg bag of powder of Keraflex Maxi S1.
- Storage
- Keraflex Maxi S1 may be stored for 12 months in its original packaging in a dry place.
Related products
Tile Adhesives, Grouts & Care.
Keraflex Maxi S1 in Tanzania
Tell us the area. We will quote the job.
Sahihi is an authorized Mapei distributor in Dar es Salaam. Send the quantity of Keraflex Maxi S1 you need, or describe the job and we will work it out with you.