Ecomortar R products are highly suitable for repair or recoating of cement mortars, gypsum plasters andcomposite backgrounds where different materials are present (plasterboards, timber, concrete etc...). EcomortarR will provide a unifying coat ready for painting or receive a finishing coat, white or coloured, such asEcomortar WP externally or traditional Ecomortar and other St. Astier NHL lime mortars internally.
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The R Series - with the R Series it is possible to go over surfaces that normally require a multitude of coats or treatments. The R Series contains a natural resin that ensures great bond characteristics without impeding breathability. Combined with the absence of shrinkage, this means that R Series mortars are eminently suitable to also be used in low strength solid backgrounds.
Suitable for: Clean dry backgrounds where loose or friable parts have been removed and the plaster is not exposed to excessive humidity or rain.
R 50: Backgrounds, including Wood Wool Boards, plasterboards, timber elements, bricks, stones,construction blocks, non waterproofed cement surfaces, gypsum plasters, internal insulation panels, MDF, and plywood.
R100: as above plus painted backgrounds (subject to paint being sound and well bonded), smooth concrete/cast concrete (free of demoulding oils), waterproofed surfaces, tiles, metal components (rust treated).
Approximate Coverage: 2.5sqm at 6mm per 25kg bag; 5sqm at 3mm per 25kg bag
Mix for 4 to 5 minutes with a whisk mixer (450 to 500 rpm). High-speed mixers (more than 500 rpm) are not recommended as they can over-mix the product and modify its performance. Manual mixing is not recommended.
WATER ADDITION
4.25 to 4.75 litres per 20 kg.
WORKING TEMPERATURE
Not below 8°C or above 30°C. Dampen the substrates the day before and prior to application, allow the surface water to be reabsorbed. Avoid rapid drying due to high temperatures and/or strong winds by covering and curing with a light water mist as necessary. Protect wet mortars from frost for at least 10 days after application. Reseal open bags as soon as possible.
Plastering or rendering is a method of using a coating similar od sand and lime over the existing brickwork/stonework. The difference between them is ...