Breathable, Lightweight Renovation Plaster for Damp Walls

Limelite Whitewall One Coat Plaster is a high-performance, lightweight plaster formulated for internal use on walls affected by damp, salt contamination, or where breathability is required. Its unique composition resists moisture while allowing trapped damp to escape, making it ideal for use in refurbishment projects, basement conversions, and heritage buildings.

Suitable for use over Limelite breathable undercoats, traditional solid backgrounds, and lime-based plasters, it simplifies plastering by serving as both a base and finishing coat. It offers excellent workability, salt resistance, and low shrinkage.

Key Features & Benefits

Breathable: Vapour-permeable formula promotes moisture evaporation from substrates.
Salt-Resistant: Inhibits damage from hygroscopic salts in damp walls.
One Coat System: Base and finishing plaster in one easy-to-apply coat.
Excellent Workability: Smooth, creamy texture allows easy finishing.
Lightweight: Reduces load on substrates and eases handling and application.

Product Details

Coverage: Approx. 2.5m² per 25kg bag at 10mm thickness
Maximum Thickness per Coat: 25mm (in one application)
Minimum Thickness: 5mm
Compressive Strength (28 days): ≥10 N/mm²
Flexural Strength (28 days): ≥2.1 N/mm²
Water Vapour Permeability (μ): ≤15
Fire Classification: A1 – non-combustible
Bag Size: 25kg

Application Instructions

Substrate Preparation: Ensure surface is clean, sound, and free from dust and grease. Dampen high-suction backgrounds.
Mixing: Add clean water to the powder and mix mechanically for 3–5 minutes to a creamy consistency.
Application: Apply by hawk and trowel in one coat at desired thickness (5mm to 25mm). Straighten and rule off.
Finishing: Once firm, finish with a steel trowel or sponge float for a smooth or textured finish.
Drying: Allow sufficient ventilation. Avoid forced drying. Wait 7–10 days before decorating with breathable paints.

Limitations

Not suitable for use over gypsum-based backgrounds or waterproof renders.
Do not apply in temperatures below 5°C or above 30°C.

Health & Safety

Wear appropriate PPE including gloves, eye protection, and a dust mask during mixing and application. Refer to the product’s Safety Data Sheet (SDS) for detailed health and handling information.

Damp Proof Membrane

Limelite Whitewall One Coat Plaster - 25kg

Timco Toughsheet Damp Proof Membrane – Black (BBA Certified DPM)

Timco Damp Proof Course – Black (30m Roll)