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1 year ago

KEIM Purkristalat

  • Text
  • Keim
  • Purkristalat
  • Silicate
  • Historical
  • Facades
  • Reflection
  • Durability
  • Mineral
  • Binding
  • Substrate

paint layer silification

paint layer silification silifikation area Extreme durability and brilliant radiance – KEIM Purkristalat outlasts generations Unrivalled durability due to the permanent bond between paint and substrate KEIM Purkristalat, the pure silicate paint acc. to DIN 18 363 para. 2.4.1, remains bonded with the substrate over decades: The silicate binder water glass penetrates deep into the mineral substrate, where it reacts chemically. This process, also referred to as “silification“, leads to a non-releasable connection between paint and coating substrate. This connection is minerally sound and extremely durable. The purely mineral materials in KEIM Purkristalat are absolutely resistant to aggressive environmental influences such as acid rain and UV radiation. At the same time the substrate is stabilised by the absorption of the binding agent water glass, thus becoming increasingly resistant. KEIM Purkristalat paints are extremely water vapour diffusible thanks to their micro-porous structure and are therefore predestined for historical masonry. Moisture can be diffused out without obstruction; damage caused by water is prevented. Due to the purely mineral composition and the chemical connection principle, KEIM Purkristalat is a guarantor of beautiful facades for decades. By the way: The aging behaviour of KEIM Purkristalat does justice to the high demand. The surface is evenly and naturally decomposed over decades due to so-called microchalking - dignified aging, technically and visually. Left illustration: Schleißheim castle, Unterschleißheim Top right illustration: Residential house, Lucerne Bottom right illustration: The enlarged plaster cross-section shows the so-called silification zone underneath the layer of paint. The binding agent water glass (KEIM Fixativ) penetrates into the substrate and is indissolubly interlinked. 4

COMMON DISPERSION PAINTS PIGMENT IS WRAPPED IN A MILKY DISPERION BINDER. THE LIGHT REFLECTION IS DULL AND DEAD. KEIM SILICATE PAINTS PIGMENT IS EMBEDDED IN TRANSPARENT WATER- GLASS. THE LIGHT REFLECTION IS STRAIGHT, BRILLIANT AND UNDERLINES THE TEXTURE. Sunlight Sunlight Milky binder Pigment Transparent binder Pigment Fascinating colour brilliance due to the purely inorganic binding agent KEIM Purkristalat not only owes its legendary durability to the binding agent water glass, but also its captivating appearance. The clear, purely inorganic binder enables the light beams to directly meet the pigment particles unhindered and to reflect from there. This unhindered light reflection causes KEIM Purkristalat coatings to actually shine. The naturalness of the dull mineral surface, combined with the brilliant radiance of bright pigments gives KEIM Purkristalat coatings an incomparable appearance – lively and fascinating. The high degree of light reflection also supports the individual character of the building – originalities and special features of the building are not simply “painted over“ but enhanced, thus being highlighted to their best advantage. By the way: The high degree of light reflection is also valuable with regard to building physics, because the thermal load of the building is substantially reduced. As far as design is concerned, KEIM Purkristalat leaves nothing to be wished for, can be processed as opaque or translucent coating and ideally supports the effect of individual traditional techniques such as graining or marbling. KEIM Purkristalat – the original for highest demands. Top left illustration: Doeckerhaus, Stuttgart Top right illustration: Prettlack Garden House, Darmstadt Top diagram: Schematic diagram of the light reflection in comparison: right: Silicate paint, left: Dispersion paint 5