Mapei Mapelastic - Cementitious Waterproofing Membrane for Concrete

£182.21

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Mapei Mapelastic is a flexible, two-component cementitious waterproofing membrane for protecting concrete structures such as balconies, pools, and terraces. Crack-bridging and water-resistant, it forms a durable, tile-ready surface and can be reinforced with Mapenet 150 for enhanced strength.

Size

32Kg (A&B)

Product variants

Delivery and Shipping

Place your order before 3pm for next working day delivery.

Please note: Additional delivery charges may apply for Northern Ireland, Isle of Wight, Isle of Man, Isles of Scilly, Scottish Highlands & Islands, and Channel Islands. We will contact you to inform you of any additional costs once your order is received, or you can call us on 0800 111 4898 beforehand to confirm.

Description

Flexible Two-Component Cementitious Waterproofing Membrane for Concrete Structures

Mapei Mapelastic is a high-performance, two-component cementitious membrane designed for waterproofing concrete and masonry surfaces. Ideal for use on swimming pools, balconies, terraces, façades, and foundations, it forms a continuous, flexible, and crack-bridging coating that resists positive water pressure and weathering. Reinforced with Mapenet 150 for critical areas, Mapelastic provides durable protection in both new build and refurbishment projects.

Key Features & Benefits

Flexible & Crack-Bridging: Resists static cracks up to 2mm, maintaining waterproofing integrity.
Positive Water Pressure Resistance: Withstands water ingress on surfaces in contact with moisture.
Ideal for External Use: Protects balconies, terraces, retaining walls, and swimming pools.
Reinforce with Mesh: Use Mapenet 150 for improved mechanical performance and durability.
Tile-Ready Surface: Can be overlaid with ceramic or natural stone tiles using Mapei adhesives.

Product Details

Type: Two-component flexible cementitious waterproofing membrane
Components: Part A – grey powder, Part B – white liquid latex
Colour: Grey when mixed
Application Thickness: Minimum 2mm (applied in two coats)
Coverage: Approx. 2.0 kg/m² for a 2mm coat (without reinforcement)
Packaging: 32kg kit (24kg Part A + 8kg Part B)
SKU: MAPELASTIC32

Application Instructions

Surface Preparation: Ensure substrates are clean, sound, and saturated surface-dry (SSD).
Mixing: Pour Part B into a clean container and gradually add Part A while mixing until smooth and lump-free.
First Coat: Apply with a brush or trowel and embed Mapenet 150 mesh if reinforcement is required.
Second Coat: Apply after 4–5 hours, perpendicular to the first. Allow to cure before tiling or exposure.

Limitations

Do not apply in temperatures below +5°C or during rainy, frosty, or excessively windy conditions.
Not suitable for negative-side waterproofing or continuous water pressure without appropriate protection.

Health & Safety

Contains cement – may cause irritation. Avoid skin and eye contact. Wear gloves, goggles, and suitable PPE. Refer to the Safety Data Sheet (SDS) for full health and safety guidance.