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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 182 Page 2 Application Instructions Preparation Concrete surfaces All surfaces must be dry or surface saturated dry, smooth, sound and free from debris and loose material. Surfaces must be free from contamination such as oil, grease, dust, loose particles and organic growth. Concrete surfaces must be fully cured, laitance-free and free from any traces of shuttering release oils and curing compounds. All surfaces should then be grit blasted to remove all foreign matter, open up blow holes and provide a suitable key for Nitocote EP410. All blow holes and imperfections should be filled with Nitomortar BH. Steel surfaces All surfaces should be grit blasted to meet the requirements of AS1627.4 Calss 2.5. The lining work should be programmed so that newly cleaned steel is coated before the reformation of rust or scale. Mixing The contents of the base can should be stirred thoroughly to disperse any settlement. The entire contents of the hardener can should be stirred and added to the base container and mixed thoroughly until a uniform colour and consistency are obtained, taking particular care to scrape the sides and bottom of the container. It is recommended that mechanical mixing be employed using a suitable mixer on a heavy duty, slow speed electric drill. In cold weather, materials should be stored between 15°C - 20°C for 24 hours before use. Application In order to obtain the protective properties of the Nitocote EP410 system, it is important that the correct rates of application and overcoating times are observed. Number of coats: 2 Theoretical application 0.15 litres per m² rate per coat: Theoretical wet film thickness per coat: 150 microns Overcoating times @ 10°C: @ 20°C: @ 30°C: 18 - 72 hours 8 - 48 hours 4 - 24 hours Fully cured @ 10°C: @ 20°C: @ 30°C: 14 days 7 days 7 days If the coating is exposed to moisture during it’s cure period (e.g. condensation, dew) it should be mechanically roughened prior to overcoating (e.g. lightly sanded). Failure to provide a suitable mechanical key under these conditions can result in delamination of the overcoat. The minimum application temperature is 10°C. All prepared surfaces should be treated with 2 coats of Nitocote EP410. The mixed material should be applied by a roller or airless spray equipment to achieve a uniform coating with a wet film thickness not less than 150 microns per coat. Any movement joints in the structure should be expressed through the coating and sealed with an appropriate sealant. Use of glass fibre reinforcement Nitocote EP410 may be used in conjunction with glass fibre cloth where necessary, to bridge fine cracks in the substrate. The cloth should be laid directly on the first coat whilst wet and should be pressed in and smoothed out with a stiff nylon brush or split washer roller. A second coat should then be applied, allowing no more than 48 hours at 20°C and no more than 24 hours at 30°C between coats, and again achieving a wet film thickness not less than 150 microns. Suitable cloth is open weave 110 g/m² glass cloth. Cleaning Nitocote EP410 should be removed from tools and equipment with Solvent 10 immediately after use. Cured material can only be removed mechanically. Limitations Nitocote EP410 is formulated for application to clean, sound concrete and steel. It should not be applied over existing coatings. Application should not be undertaken if the temperature is below 10°C or is 10°C and falling, nor when the prevailing relative humidity (RH) exceeds 90%. Nitocote EP410 is not colour stable when exposed to direct sunlight, nor when in contact with some chemicals. Fosroc® Nitocote EP410


Technical Dayta Sheet Compedium
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