All product details should refer to the official manufacturer documents. For official product data sheets or technical enquiries, please contact us via WhatsApp.
Summary:
Mapei Mapelastic Smart is a two-component, high-flexibility cementitious waterproofing slurry from Mapei, mixed from a powder and a liquid component. Its fluid consistency allows application by brush, roller or spray, saving time and effort compared with traditional thick trowel-applied mortars. Its high flexibility bridges cracks caused by minor structural movement or shrinkage. Suitable for waterproofing bathrooms, balconies, terraces, swimming pools and basements; it can be applied over clean, sound existing tiles, and ceramic tiles can be laid on top. Complies with EN 1504-2 and EN 14891 standards, certified EC1 Plus (very low emission), and UV resistant.
Product Features
High-flexibility formula — excellent flexibility that bridges cracks caused by structural movement or shrinkage
Fluid and easy to apply — apply by brush, roller or spray, saving time and effort versus heavy trowel application
Tileable finish — ceramic tiles, mosaic or natural stone can be laid on top (using a C2-class or higher tile adhesive)
Application over existing surfaces — can be applied directly onto clean, sound existing tiled surfaces
UV and chemical resistance — resists carbon dioxide, chlorides and sulfates; suitable for coastal environments
European standard certified — complies with EN 1504-2 and EN 14891, and certified EC1 Plus (very low emission)
Applications
Waterproofing bathrooms, showers and kitchen wet areas
Balcony and terrace waterproofing
Swimming pools, water tanks and storage structures
Substrate waterproofing before tiling
Protection of concrete structures and rendered surfaces with hairline cracks
Packaging
30 kg kit (20 kg powder + 10 kg liquid)
Notes
Refer to the official Technical Data Sheet (TDS) for detailed application methods, coverage and technical parameters
Mix the powder and liquid at the specified ratio, stirring thoroughly with a low-speed electric mixer
The substrate must be clean, sound and pre-dampened before application (no standing water)
Expansion joints and structural joints must be treated with dedicated waterproofing tapes
This is a concealed waterproofing layer; tiles or a finish must be laid over it — not recommended for exposed surface use
Do not apply in low-temperature conditions; store in a dry environment
From 16 July 2026 the Joint Office runs a new seepage investigation procedure: an Advisory Repair Notice within ~14 working days, 28 days to self-repair. This guide covers the new...
From 16 July 2026 the Joint Office runs a new seepage investigation procedure: an Advisory Repair Notice within ~14 working days, 28 days to self-repair. This guide covers the new...
Compare flexible waterproof cement coatings with polymer bonding agents (SBR/EVA additives) for bathroom, kitchen, and rooftop waterproofing. Learn when to use each type and browse recommended products from Weber, Sika,...
Compare flexible waterproof cement coatings with polymer bonding agents (SBR/EVA additives) for bathroom, kitchen, and rooftop waterproofing. Learn when to use each type and browse recommended products from Weber, Sika,...
How to Order
Enquiry & Order
Contact us via WhatsApp or visit our store in Mong Kok
Arrange Delivery
Schedule delivery or pick up from our store
Payment
Cash, FPS, EPS accepted
Choosing a selection results in a full page refresh.