Mapei · Cementitious membraneNo. 40 / 47
Mapelastic Foundation
Two-component, flexible cementitious mortar for waterproofing concrete surfaces subject to both positive and negative water pressure.
Two-component, flexible cementitious mortar for waterproofing concrete surfaces subject to both positive and negative water pressure
- Waterproofing concrete and masonry structures subject to positive or negative hydrostatic pressure
- It is recommended for foundation walls, car-parks and underground environments, basins, channels and swimming pools
- Waterproofing concrete retaining walls
- Waterproofing underground car-parks, cellars, sunken swimming pools and basins and lift pits against the counter-pressure of water
- Waterproofing breeze-block walls pre-treated with a suitable MAPEI mortar
- Consumption
- About 1.65 kg/m² per mm by roller
- Packs we stock
- Part A 22 kg · Part B 10 kg
Coverage calculator
How much you need.
The arithmetic uses Mapei's published consumption for Mapelastic Foundation and the pack sizes we stock. Set your own wastage allowance.
You need
x 32 kg kit (A 22 kg + B 10 kg)
- Data sheet quantity
- 66 kg
- With 10% wastage
- 72.6 kg
The figures behind it.
- Roller application: approx. 1.65 kg/m² per mm thickness.
- Spray application with rendering machine: approx. 1.75 kg/m² per mm thickness on flat surfaces
- approx. 2.1 kg/m² per mm thickness on rough surfaces with irregularities
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 concrete and masonry structures subject to positive or negative hydrostatic pressure
- 02It is recommended for foundation walls, car-parks and underground environments, basins, channels and swimming pools
- 03Waterproofing concrete retaining walls
- 04Waterproofing underground car-parks, cellars, sunken swimming pools and basins and lift pits against the counter-pressure of water
- 05Waterproofing breeze-block walls pre-treated with a suitable MAPEI mortar
Where it is not the right product.
- Do not use Mapelastic Foundation for coatings with a high thickness (more than 2 mm per coat)
- Do not apply Mapelastic Foundation at temperatures below +5°C
- Do not apply Mapelastic Foundation on substrates saturated with water (surfaces must dry off before application)
- Do not add cement, aggregates or water to Mapelastic Foundation
- Protect from rain and water contact for the first 24 hours after application
Specification
Technical data.
- EN 1504-2 · Complies with the requirements of EN 1504-2 Standards, PI, MC and IR principles
- EN 14891 · EN 14891 (CM01P)
- EN 1504-9 · Mapelastic Foundation fulfils all the main criteria for the EN 1504-9 Standards
- EMICODE · EC1 Plus - very low emission
- EN 1062-1 (test method EN 1062-3) · W < 0,07 kg/m²·h0,5 Class W3 (low water permeability) according to EN 1062-1)
- EN 1062-7 · Class A4 (+23°C) (> 1,25 mm)
- EN ISO 7783 · Sd < 3 m Class I (permeable to water vapour)
- EN 13501-1 · Euroclass E
- Mixing ratio
- component A : component B = 2.2 : 1 (one 22 kg bag of component A with one 10 kg can of component B)
- Layer thickness
- final thickness not less than 2mm
- Permissible application temperature
- room and substrate temperature from +5°C to +35°C
- Recommended application temperature range
- from +5°C to +40°C
- Mix density
- 1650 kg/m³
- Pot life of mix
- approx. 60 mins.
- Manual application
- Mapelastic Foundation must be applied with a roller or a trowel within 60 minutes of it being mixed in at least two coats, to give a final thickness of at least 2 mm.
- The second coat
- may be applied approximately 6 hours after the first coat
- Spray application
- The final thickness must be at least 2 mm. After applying the first layer, wait until it has cured (approximately 6 hours) and then apply a second layer.
- Impermeability to water under pressure (5 bar for 3 days) of positive lift expressed as water penetration
- no penetration
- Impermeability to water under pressure (1.5 bar) of negative lift expressed as water penetration
- no penetration
- Static crack-bridging at +23 °C
- Class A4 (+23°C) (> 1,25 mm)
Typical values as Mapei prints them in data sheet edition 2069-10-2025 en (IT). They are not a specification for your project: the current Mapei data sheet is.
On site
Packs, mixing and storage.
- We stock
- Part A 22 kg · Part B 10 kg
- Mapei packaging
- 32 kg kits: component A: 22 kg bags; component B: 10 kg tanks.
- Mixing
- component A : component B = 2.2 : 1 (one 22 kg bag of component A with one 10 kg can of component B)
- Storage
- Mapelastic Foundation component A may be stored for 12 months in its original packaging in a dry place. Mapelastic Foundation component B may be stored for 24 months.
Mapelastic Foundation 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 Foundation you need, or describe the job and we will work it out with you.