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Technical Dayta Sheet Compedium

CONTENTS CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING ROOFING WATERSTOPS WATERPROOFING JOINT FILLERS TIMBER FLOORING ALPHABETICAL INDEX 176 Page 2 Typical penetration depth of Emer-Stop Creme on porous concrete. 0.25 litres/m² gave 2 mm penetration. 0.44 litres/m² gave 4 mm penetration. After application, impregnated surfaces take on a whiteish appearance which clearly distinguishes them from untreated concrete providing a good visual indication of the uniformity of the application. The application thickness of the impregnant layer can be measured using a Wet Film Gauge. In response to the concrete quality and application rate, the active ingredient penetrates into the concrete within 30 minutes to several hours, and the milky white cream layer disappears completely. Penetration Depth Emer-Stop Creme is formulated to provide the greatest penetration depth of the active ingredient into the concrete, and thus provide optimum protection against the absorption of water and harmful substances. The tremendous penetration depth is a function of the thixotropic consistency of Emer-Stop Creme, which ensures a long contact time of the silane active ingredient with the concrete surface. It is also a function of the high concentration of active ingredient. The penetration depth naturally also depends on the quality of the concrete. Technical Support Parchem offers a comprehensive range of high performance, high quality, repair, maintenance and construction products. In addition, Parchem offers a technical support service to specifiers, end-users and contractors, as well as on-site technical assistance. Design Criteria Emer-Stop Creme is best applied by airless-spray. A single application is usually sufficient. Depending on the absorbency of the substrate, up to 0.25 - 0.44 litres/ m² can usually be applied in a single operation - even to vertical surfaces and soffits - with minimal waste. Properties Specific gravity: 0.9 @ 25°C Active component: Iso-Octyltriethoxysilane Concentration: 80% pH value: 8 Specification Clauses Iso-Octyltriethoxysilane water repellent for concrete The penetrating water repellent treatment shall be Emer- Stop Creme, which has a minimum 80% active silane content of Iso-Octyltriethoxysilane, designed to reduce capillary water absorption by more than 80%. Parchem recommends independent concrete core testing to confirm the actual penetration depth. Preparation Surfaces should be dry and free from contamination such as oil, grease, loose particles, decayed matter, moss, algal growth, laitance and all traces of mould oils and curing compounds. It is best to wait at least two weeks for new concrete to cure and preferably four, before impregnating it with the application of Emer-Stop Creme Cast-insitu and pre-cast concrete should be prepared using high pressure water cleaning to remove any concrete slurry covering the capillaries. Remove coarse particles and dust from fresh, unsoiled surface with a brush or compressed air. Use superheated steam to clean weathered surfaces that are contaminated with oil or abraded rubber, etc, prior to treatment. Only impregnate concrete that has a uniformly dry surface with no damp patches. Should it suddenly start to rain, stop treatment and cover the treated areas. Protect plants, glass, asphalt, bitumen, plastics and all painted surfaces prior to application. Application Emer-Stop Creme is best applied to the concrete by the airless-spray technique, undiluted and at the required coverage rate. Brushes, lambskin rollers or a trowel may be used for smaller areas. Up to 0.44 litres/m² may be applied in one operation to vertical surfaces and soffits. The exact amount depends on the absorbency of the substrate. If the concrete substrate is of a high strength and dense nature, hence not very absorbent, do not apply more than 0.25 litres/m² in one operation, as it may take several hours to penetrate completely. At higher application rates, the impregnating film may liquefy and there is a possibility that it may start to run. A second coat of Emer-Stop Creme may be applied, in order to achieve the desired coverage rate. Emer-Stop Creme


Technical Dayta Sheet Compedium
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