Mapeproof One Coat Two-Part Moisture Control Damp Proof Membrane – A 4.2kg & B 2.8kg

Name: Mapeproof One Coat Two-Part Moisture Control Damp Proof Membrane - A 4.2kg & B 2.8kg
SKU: FWA-WCM-OCM
Availability: InStock

SKU: FWA-WCM-OCM

Two-component epoxy surface damp proof membrane for controlling residual and construction moisture in cementitious and calcium sulphate/anhydrite substrates. Ideal before glue-down LVT and resilient floor coverings to manage moisture up to high relative humidity levels. Suitable for use with underfloor heating systems (cementitious substrates only).

£136.99

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Product details

Material	Two-component epoxy resin surface damp proof membrane
Application	Moisture control membrane prior to resilient, textile and LVT floor coverings
Package Size	Part A: 4.2 kg metal container; Part B: 2.8 kg plastic container (7 kg total)
Coverage	Approx. 16 m² per 7 kg unit (varies with substrate porosity)
Colour	Mixed: Black/grey-black
Moisture Control Capability	Effective on surfaces with high residual moisture up to recommended RH limits (cementitious: <97% RH; anhydrite: <90% RH)
Underfloor Heating	Yes Suitable
Curing Time	Typically set to light foot traffic in ~3–6 hrs depending on temperature
Application Tools	A2 notched trowel and short-pile roller (or brush/roller for pin-hole free coverage)
Primer Requirements	No primer required prior to application; if levelling over cured membrane, prime with Eco Prim T Plus or Eco Prim Grip Plus

Description

Mapei Mapeproof One Coat is a professional-grade, two-component, single-coat epoxy surface damp proof membrane designed to control residual, static and construction moisture in subfloors prior to the installation of resilient, textile and LVT flooring finishes. It offers effective moisture control on cementitious substrates and anhydrite screeds where moisture levels are elevated, helping to protect your subsequent glue-down LVT installation from moisture-related issues.

This system is suitable for use on cementitious subfloors and calcium sulphate/anhydrite screeds where relative humidity (RH) is above 75% and below 97% (cementitious) or 90% (calcium sulphate/anhydrite) and where an effective structural damp proof membrane is present. It can be applied with brushes, rollers or suitable notched trowels over mechanically prepared and surface-dry substrates.

When applied correctly, Mapeproof One Coat provides a single-coat solution that significantly reduces moisture vapour transmission — helping to safeguard your flooring installation. It can be used with underfloor heating systems on cementitious substrates (provided they have been fully commissioned). It is not recommended for use under wood flooring installations on heated floors.

Single-Coat System: Offers moisture control in one application, reducing labour time and preparation steps.
High Moisture Tolerance: Effective on substrates with elevated residual moisture up to 97% RH (cementitious) and 90% RH (anhydrite).
Underfloor Heat Compatibility: Suitable with underfloor heating on cementitious substrates once commissioned.
Prepares Base for Levelling and Glue-Down Flooring: Provides moisture control before levelling compounds or adhesives are applied, helping protect bonded flooring installations.