MAPELASTIC SMART WATERPROOFING SYSTEM (SET A+B)

MAPEI MAPELASTIC SMART WATERPROOFING SYSTEM (SET A+B) – HIGH-FLEXIBILITY CEMENTITIOUS WATERPROOFING MEMBRANE FOR CONCRETE AND MASONRY STRUCTURES

Price: KES 14,300 (Inclusive of VAT)
Brand: MAPEI
Pack Size: Two-Component Kit (30 kg Total Matrix)

• Component A (Powder): 20 kg Bag
• Component B (Liquid Latex): 10 kg Canister
  Color: Neutral Grey Mix
  Availability: In Stock
  Supplier: Startcore Ventures Limited, Bhavesh Centre, Mezzanine Floor, Ngara Road, Nairobi, Kenya

PRODUCT OVERVIEW

MAPEI Mapelastic Smart is a premium-grade, two-component, highly flexible cementitious mortar engineered by MAPEI Research Laboratories. It provides a highly dependable waterproofing barrier for civil engineering projects, commercial complexes, and premium residential builds across East Africa. This product is formulated to protect concrete surfaces, cementitious screeds, renders, and masonry blocks from aggressive environmental elements, moisture penetration, and chemical attack.

Mapelastic Smart consists of a cement-based powder matrix (Component A) containing graded fine aggregates and special chemical admixtures, mixed with a highly advanced synthetic rubber latex polymer liquid (Component B). When blended thoroughly, these two pre-measured components form a smooth, highly brushable, or roller-applied paste. This paste cures into an elastic, completely waterproof layer that retains its flexibility under extreme climatic shifts and continuous water immersion.

At Startcore Ventures Limited, we serve as a premier supplier of international structural waterproofing solutions in Nairobi. We source 100% genuine, batch-certified MAPEI construction chemicals to protect your structural investments from subterranean dampness, coastal moisture, and heavy tropical rainfall. Buy the MAPEI Mapelastic Smart Waterproofing Set (30 kg) today at our competitive store price of KES 14,300 Inclusive of VAT, and secure peace of mind for your building's structural health.

KEY BENEFIT HIGHLIGHTS

• Extreme Elastomeric Flexibility: Retains high elasticity up to -20°C. It offers a crack-bridging capacity exceeding 2 mm. This property accommodates structural settlement, thermal expansion, and microscopic movement without tearing or delaminating.
• Low Viscosity Easy Application: The low-viscosity fluid dynamic of Mapelastic Smart allows it to be applied rapidly using a long-bristled brush, standard roller, or mortar spray pump. This reduces onsite labor overhead and accelerates project delivery timelines.
• Aggressive Chemical Resistance: Forms an impermeable shield against carbon dioxide (CO₂) gas penetration, preventing carbonation in reinforced concrete columns. It actively resists soluble salts, sea spray chlorides, and industrial sulfates.
• Direct Tiling Compatibility: Allows for the direct application of high-performance tile adhesives (such as MAPEI Adesilex P7 or Keraflex Maxi S1) right over the cured membrane layer without requiring an intermediate primer or thick screed topping.
• Submerged & Potable Water Performance: Exceptionally stable under continuous positive and negative hydrostatic pressure, making it ideal for large-scale swimming pools, irrigation channels, fountains, and wastewater treatment structures.
• Excellent Adhesion Profile: Bonds strongly onto damp, clean concrete surfaces, micro-porous render coats, old ceramic tile surfaces, and sound cement board layouts.

ADVANCED CRACK-BRIDGING MECHANICS

Modern concrete structures face continuous dynamic load stresses, diurnal thermal cycles, and micro-seismic movement. Standard rigid cement slurries fracture easily under these conditions, allowing water to migrate through micro-cracks directly to the reinforcing rebar steel.

Mapelastic Smart handles these issues through its high concentration of premium polymer resins (Component B). As the cementitious crystal matrix cures, the synthetic latex forms an interconnected elastomeric mesh network. This allows the hardened membrane to stretch like a rubber sheet while maintaining its bond strength over the substrate. This protective barrier stops water tracking, concrete spalling, and internal rebar corrosion.

TECHNICAL SPECIFICATIONS DATA TABLE

Technical 

ParameterComponent A (Powder) Specifications

Component B (Liquid) Specifications
Consistency / Appearance | Fine Dry Powder | Homogeneous Fluid Latex
Color Profile | Grey | White
Bulk Density / Weight | 1.40 g/cm³ | 1.10 g/cm³
Dry Solids Content | 100% | 53%
Standard Mixing Ratio | 2 Parts Component A (20 kg) | 1 Part Component B (10 kg)
Density of Blended Paste | ~1.60 g/cm³ | Applied Matrix Parameter
Application Temperature Range | From +5°C up to +40°C | Applied Matrix Parameter
Pot Life of Mixed Product | Approx. 60 Minutes (at 23°C ambient temperature) | Applied Matrix Parameter
Elongation at Break (DIN 53504) | Greater than 120% after 28 days of curing | Applied Matrix Parameter
Adhesion to Concrete (EN 1542) | ≥ 1.5 N/mm² (Superior Structural Grip) | Applied Matrix Parameter
Water Tightness (EN 12390-8) | Impermeable up to 1.5 bar of positive pressure | Applied Matrix Parameter
Crack-Bridging Capacity | > 2.0 mm at room temperature | Applied Matrix Parameter
Waiting Time Between Coats | 4 to 5 Hours (depending on heat and wind vectors) | Applied Matrix Parameter
Ready for Tile Installation | Minimum 5 Days after final layer application | Applied Matrix Parameter

WHERE TO WATERPROOF WITH MAPELASTIC SMART

Mapelastic Smart is a versatile, multi-purpose waterproofing compound used across architectural sectors in East Africa:

1. Water Retaining Structures

• Swimming Pools: Provides water retention beneath ceramic finishes or mosaics, preventing leakage into the surrounding soil.
• Water Tanks & Reservoirs: Seals structural concrete joints in potable water containment facilities and municipal distribution cells.
• Fountains & Water Features: Protects structural concrete pedestals from spray mist damage and water migration.

2. Elevated Outdoor Spaces

• Balconies & Open Verandas: Forms a seamless barrier underneath exterior floor tiling to stop water leaking into rooms below.
• Flat Roof Decks & Terraces: Works as an exposed or covered waterproofing layer to handle rainwater ponding.
• Podium Slabs & Overhangs: Protects elevated concrete slabs in modern multi-unit residential structures.

3. Below-Grade Foundations & Substructures

• Retaining Walls: Stops ground moisture from seeping through subsurface concrete into basement rooms.
• Foundation Footings & Plinths: Protects lower brickwork joints from capillary rising damp.
• Lift Shaft Basements: Seals internal lift pits against negative water pressure infiltration.

4. Wet Rooms & Industrial Areas

• Commercial Kitchens & Laundries: Resists continuous hot wash-downs and chemical detergent spills.
• Public Showers & Changing Rooms: Provides a reliable under-tile barrier for gyms, hotels, and schools.

REINFORCEMENT INTEGRATION WITH MAPENET 150

For high-stress areas like building corners, structural joints, expansion gaps, and pipe penetrations, integrate MAPEI Mapenet 150 (an alkali-resistant fiberglass mesh) between the first and second coats of Mapelastic Smart.

Reinforcement Application Steps

1. Apply the first layer of Mapelastic Smart using a notched trowel or smooth roller at a uniform 1 mm thickness.
2. While the mortar is fresh and wet, lay the Mapenet 150 mesh onto the surface. Press it down with a flat trowel to embed it completely into the paste.
3. Ensure adjacent mesh sheets overlap by at least 5 cm to maintain continuous reinforcement.
4. Allow the first coat to dry completely for 4-5 hours, then apply the second layer of Mapelastic Smart to cover the mesh pattern.

CONSUMPTION AND MATERIAL ESTIMATION GUIDE

Actual product consumption rates depend on substrate smoothness, application tool selection, and the number of layers applied. For estimation:

• Manual Application (Brush or Roller): Approx. 1.6 kg/m² per mm of thickness.
• Mechanical Spray Application: Approx. 2.2 kg/m² per mm of thickness.

Recommended Minimum Dry Thickness for Performance

• Standard Bathrooms & Wet Areas: 2.0 mm total dry thickness (~3.2 kg to 3.5 kg/m² total kit yield).
• Balconies, Open Roof Decks, & Swimming Pools: 2.5 mm total dry thickness (~4.0 kg to 4.5 kg/m² total kit yield).
• Structures with High Hydrostatic Water Pressure: 3.0 mm total dry thickness (~5.0 kg/m² total kit yield).

Note: One 30 kg combined kit covers approximately 6.5 to 7.5 square meters at a standard 2.5 mm dry coating thickness.

MIXING & APPLICATION INSTRUCTIONS

To ensure the product achieves its rated flexibility and adhesion values, installation teams should follow these technical procedures:

Step 1: Substrate Inspection & Preparation

• The installation surface must be structurally sound, stable, clean, dry, and free from loose paint, plaster laitance, old bitumen oils, curing compounds, moss growth, or dust.
• Repair any structural cracks, honeycomb voids, or damaged concrete sections beforehand using specialized cementitious repair mortars, such as MAPEI Mapegrout T60.
• Wash the prepared surface with pressurized clean water to remove dust and contaminants.
• Saturated Surface Dry (SSD) Conditioning: The substrate must be damp but have no standing puddle water on the surface prior to applying Mapelastic Smart. This prevents the dry concrete from drawing moisture out of the fresh waterproofing mix too quickly.

Step 2: Mechanical Blending of Components A & B

• Pour the entire liquid polymer matrix (Component B – 10 kg) into a clean, wide plastic bucket or mixing vessel.
• Slowly add the dry cement powder (Component A – 20 kg) while stirring continuously with a low-speed electric drill and paddle mixer attachment (~400 RPM).
• Mix the paste thoroughly for 3 minutes until it forms a completely smooth, homogeneous, lump-free grey mixture.
• Do not add any additional water, sand, or raw Portland cement to this mixture. Modifying the pre-measured ratio alters its chemical structure, reducing elasticity and crack-bridging performance.
• The prepared mix has a pot life of approximately 60 minutes at 23°C. Work steadily to apply the material before the mix begins to skin or stiffen.

Step 3: Application of the Waterproofing Layers

• Apply the mixed Mapelastic Smart paste onto the prepared damp substrate using a long-bristled brush, medium-pile roller, or professional mortar spray gun.
• Apply the first coat at a uniform thickness of 1.0 to 1.5 mm. Work the material into structural corners and over porous surface areas.
• Allow the first layer to dry completely (4 to 5 hours, depending on local humidity and ambient air movement).
• Apply the second coat crosswise (perpendicular to the direction of the first coat) to ensure complete coverage without pinholes or thin spots.
• The total finished dry thickness should be between 2.0 mm and 3.0 mm, depending on the project spec.

Step 4: Protection, Curing, & Tiling Track

• Protect the freshly applied Mapelastic Smart layers from heavy downpours, strong direct sunlight, and high winds for the first 24 to 48 hours after application.
• Curing Window: Allow the waterproofing membrane to cure for at least 5 days before opening the area to light foot traffic, filling water tanks for pressure testing, or beginning tile installations.
• When tiling over the membrane, use an appropriate high-performance cementitious adhesive (Class C2 or S1) to accommodate the flexibility of the underlying elastomeric barrier.

CLEAN-UP AND HANDLING SAFETY

• Tool Maintenance: Wash mixing paddles, rollers, brushes, and spray nozzles with clean water immediately after application while the mortar is still fresh. Once cured, the material must be removed mechanically or with professional solvent removers.
• Personal Protection Equipment (PPE): Component A contains cement powder, which can cause skin irritation or allergic reactions upon contact with sweat. Always wear protective rubber gloves, safety goggles, long-sleeved work shirts, and dust masks during mixing and application.
• First Aid Protocol: If product splashes into the eyes, rinse immediately with clean running water for several minutes and seek medical evaluation. Wash off skin contact using soap and water.

STORAGE AND SHELF LIFE

• Component A Packaging: Supplied in heavy-duty multi-layer paper bags containing 20 kg net weight.
• Component B Packaging: Supplied in industrial plastic canisters containing 10 kg net weight.
• Warehouse Conditions: Store both components off the ground on raised wooden pallets inside a cool, dry, weather-proof warehouse. Keep the liquid component protected from freezing temperatures and direct noon-day solar heat.
• Shelf Life: Component A is stable for a minimum of 12 months in its unopened original packaging. Component B remains stable for up to 24 months when kept sealed in a climate-controlled storage environment.

ORDER MAPELASTIC SMART FROM STARTCORE VENTURES VENTURES TODAY

Protect your construction projects from water damage and structural degradation. Startcore Ventures Limited supplies original, factory-verified waterproofing materials across Kenya.

Why Partner with Startcore Ventures?

• Guaranteed Product Authenticity: We work directly with international manufacturers to protect your projects from counterfeit or expired construction chemicals.
• Transparent VAT Documentation: Our retail price of KES 14,300 includes standard corporate VAT processing for your accounting and compliance needs.
• Prompt Delivery Logistics: We coordinate secure dispatch from our Nairobi distribution hub directly to your building site or residential project nationwide.

Contact Our Sales & Technical Team

Ready to purchase or need a bulk price quotation for a commercial development project? Reach out to our technical support team today:

• 📞 Phone Support: +254 705 544 817
• 💬 WhatsApp Commercial Chat: Click to Chat with Startcore Experts
• 📍 Showroom Location: Bhavesh Centre, Mezzanine Floor, Ngara Road, Nairobi, Kenya
• ✉️ Email Inquiries: info@startcore.co.ke
• 🌐 Official Web Store: www.startcore.co.ke