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32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf

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 79 Fosroc® Nitobond EP settlement. The entire contents of the ‘hardener’ tin should then be poured into the ‘base’ tin and the two materials thoroughly mixed using a suitable slow-speed drill and mixing paddle for 2 minutes until a fully uniform colour is obtained. The sides of the tin should then be scraped and mixing should continue for a further 2 minutes. To facilitate mixing and application at temperatures below 20°C, the separate components should be warmed in hot water up to a maximum temperature of 25°C before beginning to mix. If heated to 25°C, the subsequently mixed material will need to be used more speedily as the pot-life will be reduced to 20 minutes. Alternatively, the material should be stored in an environment heated to 20°C and only removed immediately before use. Application Nitobond EP should be applied as soon as the mixing process has been completed. It should be brush or spray- applied to the prepared surfaces. The new concrete or screed should be applied to the coated substrate after the Nitobond EP has become tacky and within 90 minutes at 20°C, ie. while the Nitobond EP is still tacky. If the Nitobond EP is allowed to become tack-free, a second coat will be required. Where Nitobond EP is to be used as part of a repair system to form a substrate/repair barrier, care should be taken to achieve an unbroken coating. One coat should be applied and allowed to become tack-free. A second coat should be applied and used as the bonding coat. As soon as the Nitobond EP has been applied, any required steel reinforcement and/or formwork should be erected and fixed securely in place. Low temperature working The minimum application temperature is 5°C. In temperatures below 15°C, the separate components should be heated in warm water (up to 25°C) or stored in a heated environment for 12 hours before use. These measures will facilitate mixing and application. Normal precautions for winter working with cementitious materials should then be adopted. High temperature working At ambient temperatures above 30°C, the material should be stored in the shade or in an air-conditioned environment for 12 hours before use. Cleaning Nitobond EP should be removed from tools, equipment and mixers with Solvent 10 immediately after use. Hardened material can only be removed mechanically. Limitations Nitobond EP should not be applied when the temperature is below 5°C or is 5°C and falling. If any doubts arise concerning temperature or substrate conditions, consult your local Parchem sales office. Before the application of any repair material or topping, Nitobond EP should be allowed to become tacky after its application to the host substrate. Due to the relatively slow setting time of Nitobond EP, care should be taken when the product is used in cold conditions and or when the material being subsequently applied to the Nitobond EP is rapid setting. In cold conditions (<15oC) the Nitobond may not set quick enough to bond to a rapidly setting topping which may then “curl” due to shrinkage tension. This would result in delamination of the topping away from the host substrate. If there is a possibility of these conditions on site, users are advised to contact Parchem Technical Helpline for specific guidance. Estimating Supply 1.5 L pack PC: 321020 6 L pack PC: 321030 Solvent 10: 4 and 20 litre cans Coverage Nitobond EP: 4 - 5 m2/litre Note: the coverage figures for Nitobond EP is theoretical – due to wastage factors and the variety and nature of possible substrates, practical coverage figures will be reduced. Storage Shelf life Nitobond EP has a shelf life of 12 months if kept in a dry store in the original unopened packs. Storage conditions Store in dry conditions in the original unopened packs. If stored at high temperatures, the shelf life may be reduced.


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
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