What we need to know about the mosaic plasters?

The mosaic plasters represent thin, organic-connected decorative plasters, which consist of crushed quartz particles of different shapes and sizes, shading in diverse range of colours. The mosaic plasters can be composed of finely crushed colourful marble or granite pieces. They are available as ready-for-use paste-like mixtures.

Their enviable strength and durability, as well as the fact that they give the surface on which they are applied on an interesting and unusual vision, make them particularly popular and preferred for application and decorative shaping both in the interior and on whole facade walls or separate facade elements.

Main properties and benefits

- Strong water-repellent properties

- Resistance to high mechanical loads

- High resistance to severe weather conditions and UV rays

- Resistant to dirt, discolouration and aging

- High adhesion to many types of surfaces

- High vapor permeability

- Wide variety of colours

Application areas

The properties and advantages of the mosaic plasters identify their application areas – mainly on surfaces, which are subjected to high flow of human traffic, variable weather conditions and considerable mechanical stress. The mechanical strength and water and cold resistance of these type of plasters appeared as a secure guarantee of durability performance of the applied layer.

The mosaic plasters form the range of MARISAN - TERMOFLEX® MOSAIC, are recommended especially when making the wall-base and the elements in the lower stretches of the building. This is due to the fact that the wall-base is the most vulnerable and subjected to mechanical stretch past of the facade, which requires particular attention in its implementation. It is recommended for use in the elements of buildings which are undergoing prolonged exposure to atmospheric and household moisture like walls of open terraces or balconies.

These types of plasters are also used in the decorative design of architectural details, ornaments and accents   as the exterior of the buildings and in their interior. The commercial and office spaces, as well as the meeting, conference and waiting rooms, shops and other premises that are placed there are examples of premises where frequently mosaic plasters are applied. Due to the increased movement in these spaces often people tend to establish contact with the walls – to lean and to touch them, which requires that finishing coating applied to the corresponding surface is resistant to mechanical stress and colour change, fading, discolouration and cleaning. They are also suitable for application in hallways, stairways and foyers.   

Method of working with mosaic plasters TERMOFLEX® MOSAIC

А. Preparation of the base

1. TERMOFLEX® MOSAIC allows application on all kind of mineral bases, which are solid and supporting and do not contain any separating substances such as grease, bitumen or dust. Typical of the base is that it should be clean, dry, load-bearing, flat and with complete processes of shrinking. Layering of limestone as well as old paints and coloured coatings should be removed mechanically. It is important that the preparation of the base takes place at temperatures no lower than +5 °С.

2. When repairing old plaster all disjointed easily detachable parts of plaster and paint residues should be removed from the base. The cleaned old plaster should be repaired with new plaster that must have the same structure and hardness as the old one. The coarse basic plaster can be flattened with leveling plaster.
It should be well cleaned and dried by removing all mechanical particles such as dust, layering and others. Beforehand all loose parts and unsound layer must be removed from the base.

3. Priming of the base contributes by improving the adhesion and ensuring the quality of the finishing coating. At least 8 hours before applying the plaster the base should be treated one time with plenty of primer for plasters TERMOFLEX® COLOUR PRIMER, which can be coloured in a colour maximum close to the colour of the mosaic plaster which is going to be applied.  If the base which is prepared with TERMOFLEX® COLOUR PRIMER is highly absorbent, then it must be primed in advance with POROGRUND® – PRIMER FOR POROUS BASES.

4. The moisture penetrating from the base can cause serious damage to the building structure and therefore the premises and places that are exposed to moisture should be waterproofed and so that you can install in them a hydro insulation system HYDRO and SPLIT PROTECTION².

B. Preparation of the mixture

1. TERMOFLEX® MOSAIC is ready for use! Before use stir well at low speed with a mixer! If possible prepare amount for the whole area as in a large container mix the content of a few buckets of plaster.

2. Do not dilute the product with water! Do not mix with other products!

C. Method of work

1. TERMOFLEX® MOSAIC is applied to the concrete base with stainless steel trowel (at an angle of 45° the base), then pulled out over the entire surface at a thickness up to 1,5 times the size of the grain. After about 10 minutes the plaster is structured as the pebbles are flatted and compacted without pores, closely next to one another. If necessary the flattening can be done repeatedly.

2. Only wet material is structured! You should work evenly and without interruption! The plaster must be applied on the entire wall without interruption using materials with the same density and the same batch number. When using plasters from different batches it is necessary they are mixed before applying! This way any possibilities of colour difference are minimized.

3. In case it is necessary for the work to be interrupted a paper masking tape should be put on the line where the work is going to be interrupted, to lay and structure the shape of the plaster and to peel off the tape. After the pause the work must continue from the same place, as the edge of the implemented and already dried plaster can be protected by putting paper masking tape on.

4.  Decorative elements made of plaster with different colours are formed by covering and fencing the individual sections with paper masking tape. Right after applying the plaster the tape is removed. After drying, on the contours of the already plastered part should be put protective film and then the next colour of plaster can be applied without dirtying the already finished surface. The tape is removed immediately after applying the plaster!

What to pay attention for?

- Applying the plaster should be done with trowel and subsequently its smoothing and leveling requires applying some more pressure. This is due to the particles and stones contained in the material.

- Typical for the freshly applied mosaic plaster is its milky white colour. After drying the covering gains transparency, focusing on the colour of the integrated stones and crushed particles.

-  The temperature of the environment, base and mixture upon applying and the drying period should be between +5°С and +30°C. The application of the plaster should be done in dry weather with air humidity below 65%.

- During the application and the drying period, the facade should be protected from direct sunlight, rain or strong wind. This is possible with the help of facade mesh. It should not be applied on frozen ground. The fresh plaster should be kept away from freezing for 24 hours!

- The drying time of the plaster depends on the specific weather conditions. The high air humidity and low temperatures can significantly prolong the required drying time and cause unwanted colour differences!

- It is not recommended for application if horizontal surfaces as well as on bases, which are not well protected against moisture penetration.

- Colour uniformity can be achieved only within the same production batch. The development of the colour tone depends on the substrate, temperature and air humidity.

and colour options

The colour of the mosaic plasters is given by the coloured stones and quartz particles. That itself is a guarantee of long-lasting colour saturation and beautiful vision coverage. In the composition of the mosaic plasters TERMOFLEX® MOSAIC can be combined many different colour fractions. The most popular options are with one, two, three or four colour combinations.

In addition to the wide range of colours and shades, the mosaic plasters TERMOFLEX® MOSAIC can be made of different size particles, which lay down and design their surface structure – which can be composed of fine, medium, big and large particles.


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