Wacker-chemie Gmbh

Karl Maier

Richard Goetze

Robert Singer

Paul-Gerhard Kirst

Maximilian Kerbl

Heinz Winkler

An aqueous primer based on alkali-soluble acrylic resins and siliconates, especially suitable for strongly alkaline substrates, for example, asbestos cement articles, is provided. The primer is characterized by stability to storage and good compatibility with the substrate and with customary coating agents, and it brings about good water repellence, good stabilization of the substrate and a good binding between the substrate and the final coating.

Alkaline resistant primer and the use thereof

A coating material for buildings which renders them water repellent, consisting of cement and/or lime, fillers and water, which contains as a hydrophobing additive 0.1 - 3% by weight, calculated on dry substance, of one or more water soluble esters of sacharose with fatty acids having preferably a chain length of 10-20 carbon atoms.

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Burghausen, Germany

Karl Maier