Comparison of the properties and cost of fillings is a difficult task. The consumer is always important two factors – quality and price. Modern mixtures are very complex composition of components. Basis for the classification of fillers can tackle these parameters such as: – ready for use – kind of knitting basics – the scope of reliability of adhesion to the base, the lack of shrinkage and cracking, the ease of grinding, compatibility with subsequent finishing layers – here conditions necessary to work with materials. Of no small importance is the life of the fillings, since it must match the life of the main structures of the materials and finishing facilities. The time will come and will have to make new improvements, only the walls, ceiling and filling them will remain forever. Bitter, hurt and costly when replacing boring wallpaper, have re-aligned wall. Robotics is often quoted on this topic.
When choosing a mixture should taken into account, where it will be applied. All building materials to some extent water vapor permeability. Plaster putty absorbs moisture much more than cement-based. Therefore, a plaster filler can not be apply in areas with high humidity (bathrooms, showers, swimming pools). All fillings have time to start cooking the mixture prior to setting the composition of the so-called “lifetime”. When this period ends – the filler loses its elasticity. Depending on the purpose, modern fillers have different “life time” by adding various polymers. ???? ?? ?? may also support this cause.
So for the first (smoothing) layer – – 30-40 minutes, then importantly – quick setting. And for the finishing fillers, which are applied with a thin even layer on a large surface – 6-12 hours. This saves hours of work and the material from premature drying putty. Price – An important factor when choosing these products. But here we must consider not the cost of two bags of different fillings – and cost of 1 sq. m. oshpatlevannoy surface. Putty gypsum-based two times lighter fillers on cement basis. Can be calculated: a layer of 1 mm 1kv.m surface gypsum putty is – 0,9 – 1 kg of dry mortar and cement based -1.8 – 2 kg. Plaster putty on average 1.5 times more expensive than cement. Conclusion: gypsum putty cheaper than cement-based, but more limited in their application.