Industrially dry-mixed 100% waterproof breathable plastering mortar with dehumidifying ability based on Portland cement, silica sand, unique natural admixture (Izocomponent) and reinforced with fibers for external / internal and positive / negative application as replacement for general purpose plastering mortars, renovation plastering mortars and diffusion-closed waterproof membranes and coatings.
100% waterproof plastering mortar (resistant against water pressure 1 BAR / 0.1 MPa with water penetration less than 1 mm) and dehumidifying plastering mortar (with high volume of micropores which allows permanent dehumidifying process of wet substrate). Meets the requirements of EN 998-1 as renovation plaster. Provides long-term solution to a problem of water penetration on the surface of the wall (when applied on negative side) and long-term solution to a problem of water penetration to the wall (when applied on positive side) and simultaneously provides long-term solution of ventilation and drying of wet walls (when applied both on negative and positive side). It does not contain any harmful or toxic ingredients (suitable to be used in direct contact with drinking water).
The plaster is designed to be applied on vertical substrates (brick wall, light concrete block wall, rough concrete wall) and horizontal substrates (concrete floors and concrete roofs).The substrate must be solid, cement grout-free, free of dirt, oil, grease, dust, paint or other dirt and loose parts. It must not be greasy, acid, water-repellent or alcoholic base. The substrate must be thoroughly moistened immediately before applying the fresh plaster mixture and subsequently it is recommended to apply cement adhesive bridge (Portland cement mixed with water) on the substrate. The thickness of the cement bridge should not exceed a few millimeters. The plaster is applied prior to hardening of the cement bridge.
Plaster is applied manually (using standard tools for plastering) or by a plastering machine pump (it is important to set up and test fresh mixture for specific type of machine pump before application). Although plaster contains PP fibers for elimination of surface hairline cracks, it is recommended to use fiberglass mesh to overlap sensitive areas (connection of 2 different materials, e.g. bricks and concrete, corners of walls, corners of windows and doors, connections of walls and floors etc.). It is also possible to use fiberglass mesh for whole applied area. Recommended specification of fiberglass mesh is 5 mm x 5 mm (size) and 145 g / m2 (weight). Fiberglass mesh is applied close to the final surface. First apply approx. 70% of total thickness of plaster (e.g. 7 mm at 10 mm total thickness), then gently press fiberglass mesh with trowel into fresh layer of plaster and immediately apply the rest 30% of total thickness of plaster (e.g. 3 mm at 10 mm total thickness). Plaster is applied in maximum 3 layers with total thickness maximum 30 mm. Total thickness is determined by the degree of moisture load in the substrate and by requirement of layer thickness to align the surface of the wall. One layer is applied in total thickness 10-15 mm. Before application of next layer, it is recommended to slightly roughen the surface of previous layer. Each layer is applied at least after 24 hours since previous layer was applied. In case of application 2-3 layers, it is enough to use fiberglass mesh in last layer in manner described above. Surface of plaster is finished in the same way as ordinary cement-based plasters by foam trowel. We recommend to apply plaster at the temperatures from +5 to + 25 C. Do not apply if freezing weather is expected. Do not apply the plaster in direct sunlight and / or strong wind or rain. Protect from rain for at least 24 hours from application (at 20°C). If the plaster is applied inside, try to ensure proper room ventilation to achieve optimum wall drying.
Clear water is used for disposal of plaster from the tools and equipment. Hardened material can be disposed only in a mechanical way. CARE AFTER APPLICATION It is necessary to prevent the plaster from too fast drying since the optimal moistness enables permanent hydration of
It is recommended to let plaster dry for at least 3 weeks before final coating. Surface of plaster can be coated with interior / exterior coat or paint. It is recommended to use highly breathable - diffusion-open decorative coatings / paints (e.g. silicate paints, cement paints, lime paints). Check the suitability of your coating / paint with distributor / retailer. In case tiles are used, it is recommended to roughen the surface of plaster and use usual tile adhesive to stick tile to the surface. Grout for tile gaps should be breathable (not silicone-based) to preserve breathability of the surface.
|Appearance / color||Powder / grey|
|Chemical composition||Silica sand, Portland cement, natural admixture Izocomponent, PP fibers|
|Size of silica sand particles||0 - 0.6 mm (SOFT version), 0 - 2 mm (ROUGH version)|
|Packaging||25 kg paper bag|
|Shelf life||Minimum 18 months|
|Water / powder ratio||4.0 - 4.7 liters of clean water / 25 kg of dry plaster|
|Pot life / workability||Minimum 3 hours (at temperature 20 °C)|
|Thickness of layer||One layer from 10 mm to 15 mm, maximum 3 layers with total thickness 30 mm|
|Coverage / consumption||At thickness 10 mm 1 m2 = 12.5 kg of dry plaster 25kgofdryplaster =2m2 At thickness 20 mm 1 m2 = 25 kg dry plaster 25 kg dry plaster = 1 m2|