Avoid Grazing Light Thanks To Special Coatings And Materials

Ceiling surfaces and walls with grazing light can be a challenge. A structuring coating based on silicate could be a practical solution. Here you will find design options and tips for use.

Author: Fabian Störkmann I Photos: Brillux

Ceiling and wall surfaces with critical lighting situations such as grazing light require special coating materials in order to achieve uniform, seamless surfaces. A structuring coating solution suitable for spray processing gives surfaces a noble pearl structure and ensures beautiful, creative surfaces, especially in light-flooded areas - and that on a silicate basis. This processing example illustrates the design options and provides practical tips for use.

Like all silicate products, the structural coating is low in emissions, free of solvents, plasticizers and preservatives and scores with high water vapor permeability. The peculiarity of the silicate interior paint according to DIN 18363 is the "pearl effect": Expanded glass ensures a fine pearl structure, through which uniform surfaces are created - so use on long wall and ceiling areas is possible. The product is particularly suitable for coating ceiling surfaces with critical lighting conditions, because the structured surface refracts the light and prevents shading in the direction of the roll. The new coating is not only suitable for walls and ceilings with grazing light - the material is convincing wherever a pearl structure and / or a healthy silicate coating is desired. Since the material is non-flammable (A2-s1, d0 according to DIN EN 13501), there is nothing to prevent it from being used in long corridors that are escape or rescue routes.

Whether for ceiling or wall surfaces in stairwells, corridors, schools, hospitals, in the private sector or in public spaces for escape and rescue routes - with the silicate interior paint that can be spray-applied, you can create load-bearing substrates such as interior plaster, concrete, plasterboard and intact emulsion paint rational structural coatings. Another area of application for the structuring silicate interior paint: the coating of prefabricated components in the interior. The textured paint can be used on walls in combination with an additional coat of paint where surfaces are not subject to mechanical stress.

The coating structure

In the case of normally absorbent substrates such as interior plaster as well as gypsum plaster, plasterboard, plasterboard and intact, matt emulsion paint, the first step is to prime with an aqueous wall primer. If the surface to be coated is a highly absorbent surface such as concrete or intact silicate paint, a primer with silicate primer is necessary first so that the top coat does not attract too quickly. Since this is a transparent primer, an opaque intermediate coat should then be applied using a pigmented wall primer or a silicate paint. The structuring silicate paint is then used as a top coat. For a perfect flow, the material is diluted five to ten percent with a mixture of water and silicate base in a ratio of 1: 1. The structure coating is applied by spraying with a funnel gun or a screw conveyor - each with a 6 mm nozzle. "To achieve a uniform, seamless surface appearance, we recommend maintaining a spraying distance of around 80 centimeters and applying the material in even, circular movements," advises Georg Arends, technical consultant at Brillux, the manufacturer of the structural coating. "The silicate interior paint has good opacity, so the consumption is around 700 to 1,000 milliliters per square meter," he describes the product "Structosil 1914". An additional coat of paint is not necessary, but can be done with any silicate interior color.

Practical tip for processing

“We processed the material ourselves in a house on the ceilings of the kitchen, hall and living room. The choice fell on the coating, on the one hand to conceal small unevenness in the subsurface and on the other hand because the structure with the fine pearl effect pleased the house owner very well,”says Georg Arends. “For optimal results, we recommend masking the areas that are not to be coated with special care so that they are reliably protected. When everything is perfectly prepared in this way, the coating is done quickly and with little effort.”

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