Physical properties were determined on specimens prepared under laboratory conditions using applicable ASTM procedures. Actual field conditions may vary and yield different results; therefore, data are subject to reasonable deviation.
Sauereisen Corrosion-Resisting Mortar 65 is a completely inorganic, potassium silicate base mortar for bonding acidproof brick or tile used in the construction of industrial chimneys, stacks, tanks, kilns and floors. 65 is a two-component material, consisting of a Powder and a Liquid, which are mixed together as used on the job. Mortar65 is applied by troweling in the same manner as ordinary bricklaying.
65 is particularly recommended for installations handling all concentrations of sulfuric acid and strong oxidizing acids such as nitric and chromic. The mortar is highly resistant to sulfation, which may develop in other types of silicate base cements when brickwork is subjected to alternate wetting and drying, fluctuating dewpoints or acid mist conditions.
65 is preferred as a mortar for bonding brick linings in large industrial chimneys handling combustion gases from sulfur bearing fuel. With the trend towards lower operating temperatures in these chimneys, there is considerably stronger acid condensation and increasingly higher moisture present in the gases. As a consequence, moisture can be as great a problem as acids, and it is extremely important that the materials used to line the chimneys are both acid and water resistant.
When fully cured, 65 is resistant to water and acids (except hydrofluoric) throughout the complete width of the joint. In flue gas systems, 65 may be safely exposed to weak alkaline salts alternating with acid exposures. The improved chemical resistance of 65 permits use in higher pHs – depending on the alkali, its concentration and temperature. Consult Sauereisen for a specific recommendation.