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• Features & Benefits
• Application Notes
• Limitations

Features & Benefits

• Supplied as aready to use blend of dry powders which is formulated for application using the dry spray process
• Based on Portland cements, graded aggregates, silica fume, chemical additives and polymer modifiers, providing a spray mortar with low rebound and good handling characteristics
• Low water requirement ensures good strength gain and long term durability
• Low rebound
• Can be applied at 3°C and above
• High resistance to carbon dioxide
• Excellent bond to concrete
• Available in 25KG bags
• Builds of up to 150 mm vertically and 90 mm overhead can be achieved in a single application. Greater thicknesses can be achieved by multiple applications

Application Notes

• Extra protection to the reinforcing steel can be achieved by application of one full coat of Nitoprime Zincrich Plus prior to application
• Should be applied by trained applicator. The product should be emptied from the bags directly into the hopper of the dry spray process machine
• Wooden, steel or plastic floats, or damp sponges may be used to achieve the desired surface texture
• Should not be applied at an air / substrate temperature of 3°C and falling. At a static 3°C, or 3°C and rising, application may proceed
• At ambient temperatures above 35°C, the material should be stored in the shade
• In common with all cementitious materials, Renderoc DS must be cured immediately after finishing in accordance with good concrete practice, i.e. using Concure WB, Fosroc Cure B, wet hessian or polythene. In cold conditions, the finished repair must be protected from freezing
• If the finished surface is to be overcoated then Nitobond AR should be used in lieu of Concure WB and Cure B
• Renderoc DS should be removed from tools, equipment and mixers with clean water immediately after use. Cured material can only be removed mechanically
• Approx. 12.5 litres / 25 kg bag (approx. 80 bags/m³)

Note: The actual yield per bag will depend on the water addition during application. The coverage figures are theoretical — due to wastage factors and the variety and nature of possible substrates, practical coverage figures will be reduced.

Limitations

• Should not be used when the temperature is 3°C and falling
• Should not be exposed to moving water during application
• Exposure to heavy rainfall prior to the final set may result in surface scour
• Non-flammable