Mapei · Liquid membraneNo. 37 / 47
Mapelastic AquaDefense
Ready-to-use, ultra quick-drying, flexible liquid membrane for waterproofing interior and exterior surfaces.
Ready-to-use, ultra quick-drying, flexible liquid membrane for waterproofing interior and exterior surfaces
- Waterproofing before applying ceramic, stone, and mosaic coverings
- Bathrooms and shower cubicles
- Laundry rooms
- Saunas and damp environments in general
- Balconies and terraces
- Consumption
- 1 kg/m² for two coats
- Pack we stock
- 15 kg
Coverage calculator
How much you need.
The arithmetic uses Mapei's published consumption for Mapelastic AquaDefense and the pack sizes we stock. Set your own wastage allowance.
You need
x 15 kg bucket
- Data sheet quantity
- 20 kg
- With 10% wastage
- 22 kg
The figures behind it.
- 1 kg/m² for 2 coats.
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.
- 01Waterproofing before applying ceramic, stone, and mosaic coverings
- 02Bathrooms and shower cubicles
- 03Laundry rooms
- 04Saunas and damp environments in general
- 05Balconies and terraces
Where it is not the right product.
- Do not apply Mapelastic AquaDefense if the temperature is lower than +5°C
- Mapelastic AquaDefense must always be covered with ceramic, mosaic or stone
- Do not apply Mapelastic AquaDefense on cementitious substrates with residual humidity higher than 3% or subject to recurring rising damp
- Do not apply Mapelastic AquaDefense on crumbly cementitious substrates, old floors that are not well bonded to the substrate or surface treatments which could affect the bond
- Do not use Mapelastic AquaDefense to cover cracks
Specification
Technical data.
- EN 14891 · Product certified according to EN 14891, waterproofing under tile
- Colour
- light blue
- Density
- 1.30 g/cm³
- Solid content
- 66
- Recommended application temperature range
- from +5°C to +35°C
- Waiting time between each coat
- approx. 60 minutes (when dry touch)
- Waiting time before application of the covering
- 3-4 hours
- Complete drying of 1 mm thick layer
- 12 hours
- Initial adhesion (EN 14891-A.6.2)
- 1.7 N/mm²
- Crack-bridging ability at +23°C (EN 14891-A.8.2)
- 3.2 millimeters
- Crack-bridging ability at -5°C (EN 14891-A.8.3)
- 1.6 millimeters
- Impermeability to water under pressure (EN 14891-A.7) (1500 kPa)
- No penetration
- Mapelastic AquaDefense must be applied in
- two thin (approx. 0.4 mm per coat), even coats
Typical values as Mapei prints them in data sheet edition 14224-7-2026 en (IT). They are not a specification for your project: the current Mapei data sheet is.
On site
Packs, mixing and storage.
- We stock
- 15 kg
- Mapei packaging
- 3.5 kg, 7.5 kg, and 15 kg rectangular bucket.
- Storage
- Mapelastic AquaDefense can be stored for 24 months in its original packaging in a dry area. Protect from frost.
Mapelastic AquaDefense 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 Mapelastic AquaDefense you need, or describe the job and we will work it out with you.