Ecorend MR1 Monocouche Render 25kg – Moon Stone

MR1 is applied in a one-coat, two-pass operation and can be installed by hand or suitable spray equipment. Once scraped, it creates an even stone-textured surface without requiring a separate coat of masonry paint.

The Siloxane-enhanced formulation provides W2-class water repellence while remaining breathable. Its through-coloured construction also means the Moon Stone shade continues through the depth of the render rather than sitting only on the surface.

Product summary:

• Colour: Moon Stone
• Render type: Through-coloured monocouche
• Finish: Scraped stone texture
• Pack size: 25kg
• Application: Hand or spray
• Finished thickness: Approximately 15mm
• Coverage: Approximately 1.5kg per mm per m²
• Water demand: Approximately 4.5–5 litres per bag

Use bags from the same manufacturing batch across complete elevations wherever possible. Always check a physical colour sample before ordering, as screens, lighting, substrate conditions and application methods can affect the perceived shade.

FINISHING TOOL
Scrape Float

SUBSTRATE PRIMER
S10 or K11 (Dependent on substrate)

SUITABLE SUBSTRATE
Concrete, Clay, Lightweight Block and Brick Pot Life 1 Hour + Water Demand Approx. 4.5 - 5 litres per 25kg bag Ready to Finish 3-16 hours @ 5˚C - 25˚C

PRIMING
When applying to concrete block, prime with Ecorend S10 Bonding Primer When applying to clay, lightweight block and brick, prime with Ecorend K11 Key Coat Primer

MIXING
Ecorend MR1 Monocouche One Coat Render should be mixed with clean water at a rate of approximately 4.5 - 5.0 litres per 25kg bag using a suitable paddle or pan mixer. Mix for 2 minutes, allow to stand for 2 minutes then re-mix. This process allows the additives to dissolve and activate.

APPLICATION
To avoid dampness and discolouration rendering should be avoided below DPC or within 150mm of ground level. Ecorend MR1 Monocouche One Coat Render should be applied in a one-coat 2 pass operation to 17mm and finished to 15mm thick. The 1st pass should be applied to the primed substrate with a stainless steel trowel or spray pump, and for ease of application a serrated feather edge and finishing spatula will help. Apply the 1st pass to approx. 8mm thick with fibre-reinforcing mesh included in the 1st pass ensuring that the mesh is overlapped 100mm at the mesh joints. Additional fibre-reinforcing mesh stress patches of 500 x 500 mm should be added at all openings i.e. windows and doors, and also window reveals for additional substrate stress protection. The 2nd pass should then be applied to approx. 9mm thick, wet on wet to the 1st pass and levelled flat. Then leave the render to harden but not fully set for between 3-16 hours dependent on the temperature. This will allow the surface to harden, ready to finish once you can imprint your nail but not your thumb print, at this point the render is ready to scrape. Scraping should take place using a scraping float, scrape the surface in a tight circular action. It is essential that this operation is done carefully and evenly, the objective is to only remove 2mm from the complete surface. During the operation of scraping the render, use a straight edge to ensure any high spots are evened out. Immediately following the scraping process (preferably use a second man for this process), use a light soft brush to remove all loose material. Carrying out this process may highlight any un-scraped areas. Un-scraped areas must be scraped immediately to avoid colour variation that will occur if scraped when the product has started to set. Small blemishes or holes can be repaired at this stage by using material freshly scraped from the wall and pointed in. Once the product is fully scraped the minimum finish thickness should be 15mm. Specification Clauses relating to this product can be found in NBS Section M20 Rendering. BS 5262 Code of Practice for External Rendering and BS 8000-10 must be followed.