Product Overview

Renderoc SPL is a spray-applied, polymer-modified, fibre-reinforced, single-component cementitious repair mortar from Fosroc designed for large-area concrete repair using wet-spray (render spray) equipment on overhead soffits, vertical columns, piers, abutments, and large concrete wall faces. For small area and precision repairs, hand-applied mortars are practical — but for large-area repairs covering hundreds of square metres of deteriorated concrete on bridge soffits, viaducts, multi-storey car park soffits, and building facades, hand application is slow, expensive, and produces inconsistent quality. Spray application with Renderoc SPL allows experienced applicators with a rendering machine to achieve 100 to 300 square metres of concrete repair per day — dramatically faster than hand trowelling — while still producing a repair that is structurally effective and durable. Renderoc SPL is specifically formulated for the spray application process: the fine aggregate grading allows the mortar to pass through the spray pump and nozzle without blockage; the fibre reinforcement controls plastic shrinkage cracking that would otherwise be a problem in the large, thin, rapidly drying repair areas produced by spray application; and the polymer modification maintains the adhesion and flexibility of the cured mortar. The product is used on bridge soffit repair projects where large areas of spalled concrete must be reinstated efficiently, on viaducts and elevated highway structures, and on building concrete facades and columns where structural repair must be completed within a tight contract programme. Space Arc Engineering distributes Renderoc SPL for bridge, viaduct, and large infrastructure concrete repair projects across Delhi NCR, Ghaziabad, and Northern India.

Applications

• Large-area bridge deck soffit and beam concrete repair by spray application
• Viaduct and elevated highway structure concrete repair
• Multi-storey car park soffit and column concrete repair at scale
• Jetty and wharf underside concrete repair in marine environments
• Building column and beam concrete repair over large areas
• Bridge abutment and wing wall concrete restoration by spray

Key Advantages

• Formulated for wet-spray application — passes through pump and nozzle without blockage
• Fibre reinforcement controls plastic shrinkage cracking on large spray areas
• Polymer modification for high bond strength and low permeability
• Single-component — consistent quality across large volumes of material
• 100–300 m2 per day productivity versus 30–50 m2 for hand application
• Compatible with Fosroc Nitobond primer for complete repair system