Not all dry sprays are created equal

All product properties should be taken into consideration to identify the best solution. When selecting a dry spray concrete repair material for a building, bridge, tunnel, or marine structure repair project, application time, upfront cost and ease of supply are often key factors in the buying process. Certain nuances, however, can be overlooked in what may seem like a straightforward comparison against alternative brands. An example of this is how Fosroc’s Renderoc Dry Spray and Dry Spray Rapid (DS and DSR) offer fibre-reinforced strength, in addition to market-leading low rebound performance for reduced material wastage.

The fibres offer enhanced cohesiveness of the wet mortar to achieve better build in a single layer. That is why Renderoc DSR can be applied up to 200mm deep vertically in a single layer, whereas typical alternatives can only achieve 150mm. In the event of a fire, the fibres will melt, creating passages for trapped moisture and steam to escape, causing less pressure and spalling.

Renderoc DS and DSR are highly versatile, being ideal for isolated and large-area repairs to beams, columns and panels, with or without incorporation of cathodic protection systems. They can also be used as a wide-scale overlay system to increase cover to the reinforcement, with DSR carrying the added benefit of extra-rapid setting and early strength gain. 

With an inherently high resistance to CO2 and excellent bond to concrete, both products satisfy Class R4 of BS EN 1504-3. Renderoc DS and DSR are also encompassed within Fosroc’s recently generated EPDs. With proven quality, versatility and efficiency, Renderoc DS and DSR provide a comprehensive and sustainable solution.

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