Silicone resin plaster - properties, application and prices

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Silicone resin plaster - properties, application and prices

Whether new construction or renovation, by far the largest part of houses in Germany gets a dress made of plaster as an outer facade skin.
What does silicone resin plaster consist of?
Silicone resin plaster belongs to the resin plaster, which are determined by synthetic resin dispersions as organic binders. When silicone resin plaster is added to the resin silicone resin emulsion, which makes the resulting film water vapor permeable compared to a pure synthetic resin plaster. It can basically be applied to all mineral and organic substrates.
Advantages of silicone resin plaster
This creates a high-quality and durable product that is very well equipped to withstand the effects of moisture from the outside. Probably the best of all plaster mixtures holds silicone resin plaster lasting or driving rain. It is also insensitive to chemical agents caused by air pollution or acid rain. Even against biological attacks such as infested by algae and fungi is well prepared for silicone resin plaster. In addition, silicone resin withstands very well mechanical effects. A deposit of dirt particles, for example, by the ingress of contaminated rainwater in pores and capillaries of the
Coating happens is very difficult with silicone resin plaster. Therefore, silicone resin plaster is often used in areas with critical air quality and on mechanically highly loaded facades.
Silicone resin plaster - quality
The higher the proportion of silicone resin in the plaster, the more open-pored the resulting film. However, since silicone resin is not subject to standardization, all dispersion products that are only
be provided with the least amount of silicone resin, called silicone resin plaster. Which vapor permeability is really given, can therefore only be determined by careful study of the technical data of the plaster (vapor permeability, Sd value).
How is silicone resin plaster processed?

  • Silicone resin plaster is very easy to process directly from the bucket. It is only stirred with a mixing pad attachment on the drill before use.
  • To achieve the desired processing consistency, water can still be added.
  • Silicone resin plaster can basically be processed manually with the cleaning trowel or by machine.

Silicone resin plaster - prices
Silicone resin plaster is available from € 70.00 for the 25 kg bucket (enough for a grain size of 1.5 mm for around 10 square meters). So it costs more than twice as much as mineral plaster. If you do not touch the mineral plaster yourself, however, you must include this work. Silicone resin plaster is delivered ready in the bucket and must only be stirred before processing. It is also usually applied thinner, which is advantageous from the point of view of the workload. Whether the thin-film system is optimal for your façade, however, depends on further considerations. Silicone resin plaster can be supplied colored tinted for an extra charge, but can not be produced in the complete color palette that is possible with dispersion plaster or synthetic resin plaster.
For external order of the plaster, the costs are dependent on layer design and necessary preliminary work. They can be under 10, - Euro per square meter, but with a lot of effort in the good double-digit range. The material is usually included here.
The downside of silicone resin plaster is, besides the high price, that it may make the wall quite dense. In many cases, therefore, the cheaper mineral plasters are now used again, which in any case cause a diffusion-open wall coating.

Video Board: External Wall Insulation with Silicone / Acrylic Thin-Coat Render.

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