Sika MonoTop-412 NFG is a 1-component, polymer modified, fibre reinforced, low shrinkage structural repair mortar with corrosion inhibitor meeting the requirement of class-R4 of EN 1504-3. Polymer modified for increased durability and has superior workability and finishing. Suitable for hand and machine application and can be applied up to 50 mm thick per application layer. Can be used for structural repair and has a very low shrinkage behaviour. Contains corrosion inhibitor and has low chloride permeability. Suitable for restoration work. Repair of spalling and damaged concrete in buildings, bridges, infrastructure and superstructure works. Suitable for structural strengthening). Increasing the bearing capacity of the concrete structure by adding mortar. Suitable for preserving or restoring passivity. Increasing cover with additional mortar and replacing contaminated or carbonated concrete.