Quick Links - Click To Jump To Section:

   
• Features & Benefits
• Application Notes
• Limitations

Features & Benefits

• Supplied as a ready to use blend of dry powders requiring only the site addition of clean water to produce a highly consistent cementitious fairing mortar
• Based on a blend of cements, graded aggregates, special fillers and chemical additives to provide a material with good handling characteristics, while minimising water demand
• Polymer-modification provides extremely low permeability to water, carbon dioxide and chlorides
• Superb application performance
• Rapid setting
• Excellent bond to concrete
• One component, pre-bagged to overcome site-batched variations
• Contains no chloride admixtures

Application Notes

• Renderoc repair mortars require no additional preparation prior to the application of Renderoc FCR
• No independent priming system is required
• Small quantities (up to 10 kg) can be mixed by hand using a suitable mixing drum or bucket
• Greater quantities should be mixed using a forced-action mixer. Mixing in a suitably sized drum using an approved Renderoc Mixing Paddle (MR4) in a slow speed (400/500 rpm) heavy-duty drill is an acceptable alternative
• Apply to the prepared substrate by steel trowel as a scrape coat of minimal thickness
• The material should not be applied when the substrate and/or air temperature is 5°C and falling. At ambient temperatures above 35°C, the material should be stored in the shade and cool water used for mixing
• Does not require any form of curing in moderate ambient conditions, but under strong drying conditions (e.g. high winds) curing may be necessary
• The use of Nitobond AR, sprayed on to the surface of the finished Renderoc FCR in a continuous film, is recommended
• Large areas should be cured as trowelling progresses (0.5m² at a time) without waiting for completion of the entire area
• Can be overcoated with the Dekguard range of coatings or suitable alternatives. These products provide
  a barrier at the surface of the repair area and the concrete structure to limit the advance of chlorides and carbon dioxide, and to resist the weathering erosion
• The Dekguard products may be applied over the repair area without prior removal of the Nitobond AR curing membrane (if used)
• Should be removed from tools, equipment and mixers with clean water immediately after use. Cured material can only be removed mechanically
• Yield: Approx. 15.0 litres / 25 kg bag 3m² at 5mm thickness

Note: the actual yield per bag will depend on the consistency used.

Limitations

• Should not be used when the temperature is below 5°C and falling or above 35ºC
• Due to the lightweight nature of Renderoc FCR, the product should not be used in areas subjected to traffic (in these circumstances, Renderoc S should be considered)
• Should not be exposed to moving water during application
• Exposure to heavy rainfall prior to the final set may result in surface scour
• Care should be taken to ensure that the product is thoroughly mixed. As with other ‘one pack’ repair mortars, Renderoc FCR may exhibit satisfactory handling characteristics even though inadequately mixed. This will result in a significantly lower level of performance or possible failure. It is therefore essential that mixing Instructions are strictly adhered to with particular emphasis on the quantity of water used and the time of the mixing operation
• Renderoc FCR is non-flammable