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How to apply liquid rubber correctly – the subtleties of using one of the best sealants

Tell me how to apply liquid rubber correctly? This year we will have to close the house and change the roof, as it leaked. The building is old, the roof, accordingly, is also made “the old fashioned way”. We will make the new roof using modern technologies, however, we choose the most affordable materials. It was decided to use rubber for roof insulation.

how to apply liquid rubber correctly Liquid rubber is widely used in construction and not only for insulating and sealing various surfaces. But in order for the protective coating to really turn out to be of high quality and to serve for a long time, it is important to know how to properly apply liquid rubber. Two points should be taken into account here: first of all, a thorough preparation of the treated surface and the appearance of the rubber itself. If everything is done properly, the protective layer will last a long time..

Surface preparation

rubber brushing Despite the fact that the rubber adheres perfectly, any surface must first be cleaned of dirt. These are primarily greasy spots, various deposits, and dust. Cracks, crevices and joints are cleaned with a metal brush. The water jet unit copes well with small particles. Concrete surfaces are treated with a grinder or a special brush.

If rubber will be applied to a roll coating, it must not be cleaned with water so that it does not get under the base.

How to properly apply liquid rubber

bulk rubberAfter the working surface is cleaned, you can start treating it with rubber. This procedure is carried out in two stages:

  1. First, the first layer is applied, the so-called surface priming. It removes the finest dust particles and improves adhesion.
  2. Then the main layer is applied, and perpendicular to the first.

The thickness of the final layer depends on the specific surface type. So, for metal structures on the roof, 1 mm is enough, and for brick walls – 1.5 mm. But for a roof with a membrane surface or covered with concrete, you need 3 and 2 mm, respectively.

Application features depending on the type of material

roller applicationAs for the tools, it all depends on what kind of rubber is used. Spreading rubber is applied with a spatula, brush or brush. You will need a spray gun to apply spray rubber. Bulk rubber is more often used to seal the floor and is poured immediately after preparation.

Application of liquid rubber using a special installation – video

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