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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 JOINT FILLERS WATERPROOFING WATERSTOPS ROOFING TIMBER FLOORING ALPHABETICAL INDEX programmed so that newly cleaned steel is coated as soon as possible 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 added to the base container and mixed thoroughly until a uniform consistency is obtained, taking particular care to scrape the sides and bottom of the container. It is recommended that mechanical mixing be employed, using a helical mixer on a heavy duty, slow speed electric drill. Application In order to obtain the protective properties of Nitocote EP405, it is important that the correct rates of application and overcoating times are observed. Number of coats: 2 Theoretical application rate per coat: Page 2 179 0.2 litres per m² Theoretical wet film thickness per coat: 200 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. The maximum application temperature is 30°C. All surfaces should be treated with 2 coats of Nitocote EP405. The thoroughly mixed material should be applied with a suitable brush, roller or airless spray applied. The first coat must be firmly applied, ensuring a uniform coating with a wet film thickness not less than 200 microns. The first coat should be allowed to dry for not less than 8 hours and not more than 48 hours at 20°C. The second coat should be applied exactly as above, again achieving a wet film thickness not less than 200 microns. Nitocote EP405 can be sprayed using an airless spray system such as a Graco 55:1 unit operating a 3000 psi pressure and fitted with a spray tip size of 25 “thou”. Consult Parchem for further advice on spray application. For ease of overcoating and visual inspection, it is recommended that the first coat be white and the second coat blue, or vice-versa. For cold weather working, it is recommended that Nitocote EP405 be stored in a heated building and removed immediately before use. At lower temperatures, workability of Nitocote EP405 will deteriorate, and the applied product will take longer to cure. Coverage figures obtained with the first coat will be heavily influenced by the nature of the substrate and its preparation. When this product is applied at lower temperatures, coverage figures will be reduced. When estimating, substrate condition and application temperature need to be considered and material allowances made. Cleaning Nitocote EP405 should be removed from tools and equipment with Solvent 10 immediately after use. Cured material can only be removed mechanically. Limitations „ Nitocote EP405 is formulated for application to clean, sound concrete and steel. „ Nitocote EP405 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 exceeds 90%. „ Although Nitocote EP405 may be applied to damp concrete, there must be no standing or running water. „ Nitocote EP405 is not colour stable when exposed to direct sunlight nor when in contact with some chemicals. „ On curing Nitocote EP405, the final colour can vary with curing conditions, and in adverse conditions such as low temperature and/or high humidity, a white bloom may appear on the surface. However, this does not affect the protective performance of the coating. Fosroc® Nitocote EP405


Technical Dayta Sheet Compedium
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