Description
Lime plaster is intended for plastering, filling and leveling substrates. UKU lime plaster is also suitable for facades and washrooms due to the high pH level of lime.
UKU lime plaster is 100% natural. Lime plaster is a good choice for finishing both modern and historic facades and is perfect for interiors, including wet rooms.
UKU lime base plaster is durable and, as a finishing material, a good choice for creating an excellent indoor climate and making structures more fire-resistant.
Lime plaster regulates the humidity in the room and inhibits the formation of mold, suitable for allergy sufferers. Inspired by traditional recipes, we have created modern lime products that have been tested according to EN 998-1 standard.
Suitable substrates:
Wood (covered with reed mat or other netting)
Stone (brick, structural concrete)
Blocks (Bauroc, Fibo, Columbia)
Plasters (clay plaster, lime plaster, mineral plasters)
Straw (straw walls)
Reed (thin reed mat, reed panel)
Color: white
Grain size: 0–4mm
Maximum layer thickness: 1,5 cm
Consumption: 17kg / m² (10mm layer)
Packaging: 25 kg bag, 500 kg / 1000 kg Big-Bag
The base surface
The base surface must be uniformly flat, dry, absorbent and certainly free from dust, paints and lubricants (oils, greases, etc.). To improve adhesion and to protect the plaster from drying too quickly, the supports must be moistened beforehand. Absorbent substrates must be wetted to saturation (water sprayed onto the surface remains on the substrate for at least 5 seconds before being absorbed by the substrate). For smooth surfaces with poor adhesion, such as smooth concrete, plasterboard, etc., we recommend using a quartz repair adhesive primer beforehand. When plastering wooden surfaces (logs, planks, chipboard with a smooth surface, plywood, etc.), we recommend using a thin layer. Reed and reed mat, wood fiber, cork board, etc. Natural insulating material for insulation.
Conditions
The temperature of the substrate and the surrounding air must be higher than 5°C. The process of carbonization of lime takes place in water and under the influence of carbon dioxide (CO2) from the air, a layer of lime 1 cm thick lasts about 1 month, therefore, when plastering in outdoor conditions, protect the lime plaster from drying out excessive wind and sun. Above 25°C hot summer should moisten the lime plaster after 5 days (twice a day). We recommend using it in very humid rooms. UKU lime-based plaster made with hydraulic lime.
Preparation of the mixture
Add 3.75-5 liters of clean water to a bag (25 kg) and mix well for 5-10 minutes so that the mixture becomes porous and uniform. It is best to prepare the mixture a day before plastering, at least the mixture should sit for 30 minutes before use. After it has stood, the plaster mixture must be thoroughly mixed again.
Installation
Clean the substrates beforehand and moisten them properly. Apply a layer with a thickness of 4-10 mm (not more than 10 mm). Pull to harden on the plaster and level the surface with a plaster trowel avoiding a smooth metal-glue surface and rub/seal the smoothed surface with a plaster or rubber trowel. After (slight) drying, moisten the lime plaster for another 5 days (in this case if the temperature is above 25°C). When reinforcing, a reinforcing mesh should be installed on top of the second layer and smoothed on the plaster surface with a trowel, rubbed if necessary. even more. We recommend using jute fabric in full or with a larger mesh (at least 7×7 mm) for reinforcement. Fiberglass mesh that is installed with an overlap of 7-10 cm. After the plaster hardens, rub the surface with a plaster or rubber squeegee until smooth. In order to impart impermeability to the lime surface, it is necessary at the final stage of installation, when the plastered and finished surface is still light. Wet, apply the olive oil soap solution to the surface with a brush. When soap fats and lime react, a water-repellent surface is created, which can be successfully maintained with natural detergents. For successful maintenance, we recommend smoothing the plastered surface with lime.
Final finish
UKU lime plaster is generally finished with fine grained lime plasters. The base plaster surface can also be used as a finishing touch in interior conditions, primed with UKU cellulose primer or painted with UKU lime paint. Finished with plaster in exterior conditions the surface with UKU lime paint.
Consumption
Depending on the flatness of the support and the layer thickness, 7-17 kg/m² at a layer thickness of 4-10mm.
Safety
Lime is corrosive. Avoid dust inhalation, skin contact and eye contact. The use of a respirator, protective glasses and clothing is recommended. In case of contact with eyes, wash eyes with physiological solution. Glass, metal and lacquered surfaces and other lime-sensitive surfaces must be coated against splashes before installation. Keep out of reach of children.
Preservation
Store in dry conditions. Validity period 1 year from the date of manufacture. The production date is based on the packaging. There may be slight differences in tone in different batches.
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