EWI-090 Monocouche Scratch Render 25kg is a decorative through-coloured scratch render with enhanced adhesive properties, ensuring a flexible and crack-resistant natural stone-like finish for concrete, clay, block, and brick substrates.

Scratch Render (Monocouche) is available in six most popular colors: bright white, cotton white, cashew, latte, pebble and portobello to provide residential and commercial buildings with a breathable, decorative finish.

The polymer-modified admixtures of EWI-090 Monocouche Scratch Render enhance the adhesive characteristics of this product, delivering a flexible and highly crack resistant finish to the property’s exterior.

Monocouche Scratch Render is a cement-based high-performance render designed with water-repellency, breathability, and durability in mind.

EWI-Pro EWI-090 Monocouche Scratch Render is a colored dry powder manufactured from a mixture of Portland cement, hydrated lime, polymers and modifying admixtures that can be used as a thick coat render that is applied in two passes.

The through-coloured properties of EWI-090 Monocouche Scratch Render ensure a low maintenance, decorative finish with a natural stone-like appearance for years to come.

EWI-090 comes as a dry mix powder in 25kg bags and should be mixed for 2-3 minutes with 4.5 - 5 litres of clean cool water.

Use an electric paddle to mix the product thoroughly to ensure the additives are activated and a consistent texture is achieved then leave for 2 minutes and mix again, now it is ready for application.

Specification:

Nominal thickness: 15mm 

EWI-090 Monocouche Scratch Render: approx. coverage 0.85m2

Mixing time: approx. 2-3 minutes

Mixing ratio: 4.5 - 5 litres per 25kg bag

Application: stainless-steel trowel or spray pump

Consistency: through-coloured dry mix powder

EWI-090 Monocouche Scratch Render Colors: Bright White, Cotton White, Cashew, Latte, Pebble, Portobello.

Weight: 25kg

EWI Pro EWI-090 Monocouche Scratch Render Application:

 · When applying to concrete block, clay, block or brick, prime the surface with EWI-310 Universal Primer.

 · To avoid dampness and discolouration, rendering should be avoided below the DPC or within 150mm of ground level.

 · EWI Pro Monocouche Scratch Render should be applied in 2 passes to a total depth of 17mm and scratched back to 15mm for the final finish.

 · The first pass should be applied to the primed substrate with a stainless-steel trowel or spray pump.

 · Fibreglass mesh should be embedded within the first pass and it should be ensured that mesh is overlapped 100mm at the mesh joints.

 · To ensure extra protection against stress, additional fibre-reinforcing stress patches of 500 x 500mm should be applied at all openings, i.e., at windows, doors and all window reveals.

 · The second pass should then be applied to a thickness of approximately 9mm, wet on wet to the first pass and then levelled flat.

 · The render should be left to harden for 3-16 hours.

 · Once hardened, the monocouche render can be scraped with a scraping float in a tight, circular movement – removing 2mm from the surface.

 · Then, use a light, soft brush to remove loose material and scrape to avoid colour variation.

 · The drying time may vary depending on weather conditions and temperatures.

Substrate Preparation for EWI-090 Monocouche:

 · When applying Monocouche Scratch Render, all surfaces should be clean, dry, and free from any material which may impair application.

 · Scaffolding must be independently tied to allow for uninterrupted application.

 · Any faults in the structure, particularly those that may lead to moisture penetration, must be amended.

 · Apply masking tape around the areas where the render is to be applied.

 · Ensure masking tape is removed before the render dries out.

 · Beading and expansion joints should be included according to substrate requirements and Building Standards regulations.

 · Before application onto concrete block, clay, brick or block, the substrate should be primed with a suitable primer such as the EWI-310 Universal Primer.

EWI-090 Certification and Standards:

 · PN-C-81913:1998 Dispersion paints for façade painting.

 · European Technical Approvals ETA – 15/0576 and ETA – 15/0575.

 · BBA Approval Inspection Testing Certificate 18/5503.

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