MAPEI

MAPELASTIC A+B UNIT, 16kg - 30kg

From £76.49

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MAPELASTIC A B UNIT is a two-component, flexible cementitious mortar designed for waterproofing concrete surfaces exposed to hydrostatic pressure. Suitable for applications on balconies, terraces, bathrooms, and swimming pools, it provides long-lasting protection against water infiltration while accommodating minor structural movements. This product ensures durable, chemical-resistant waterproofing, maintaining its integrity even under aggressive environmental conditions.

Regular price £63.74 (£76.49 inc. VAT)
Sale price £63.74 (£76.49 inc. VAT) Regular price
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1% from your order total goes to a cause you choose:

Tree Sisters

Building A Band of Brothers

Product Description

Mapei MAPELASTIC is a two-component, flexible cementitious membrane for waterproofing concrete, render and screed surfaces. The A+B unit contains both the powder (Component A) and the liquid latex (Component B), providing crack-bridging protection for balconies, terraces, bathrooms, swimming pools and below-grade structures. Available in 16 kg and 30 kg units.

Key Benefits

Two-component system — superior flexibility and crack-bridging ability
Suitable for interior and exterior waterproofing
Withstands positive and negative water pressure
Can be tiled over directly with Mapei adhesives
Resistant to frost, UV and ageing
Bridges cracks up to 1.5 mm
Certified to EN 14891 for beneath-tile waterproofing

Application

Mix Component B liquid into Component A powder using a low-speed drill until a smooth, lump-free consistency is achieved. Apply the first coat by brush, roller or trowel onto a clean, sound substrate. Embed MAPEBAND tape at all joints and corners while the first coat is wet. Apply the second coat once the first is touch-dry (typically 4–6 hours). Minimum two-coat application required. Apply at temperatures between +5°C and +35°C.

Coverage

Approximately 1.7 kg/m² per coat applied at 1 mm thickness. Two coats at 2 mm total thickness give approximately 3.4 kg/m². A 30 kg unit covers roughly 8–9 m² in two coats.

MAPELASTIC A+B UNIT, 16kg - 30kg

£76.49

Delivery to a remote area? Scottish Highlands, Islands, Northern Ireland or Offshore UK? Please contact us before ordering for a delivery quotation.
  • Working with our supply chain

    For each and every project we work on, we ensure that materials are sourced as close to the site address as possible and attempt to arrange deliveries during off-peak times to minimise congestion on our roads. 

  • Supporting A Band of Brothers UK

    We are proud to support A Band of Brothers UK, a charity helping young men break cycles of violence and crime through mentoring. Every order you place with Screedworks contributes to this vital cause through our easyfundraising partnership.

  • Restore & Protect

    From January 2021 we are asking our clients to round up their final invoice to the nearest £5, £10 or £20. We will match the amount pledged and then donate the total to Tree Sisters.

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