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Problem Solver - Concrete Block
Other Problems
Concrete blocks are made from cast concrete, e.g. Portland cement and aggregate, usually sand and fine gravel for high-density blocks. If left untreated, the surface can degrade.
Preparation
Dry brush the surface down using a stiff bristle brush to remove any loose materials
If any mould or mildew is apparent, treat with a suitable fungicidal solution, rinse again with clean water and allow to dry.
Depending on surface substrate check condition and carry out any remedial works required to make sound
Basecoat
Once the surface is clean and all loose material has been removed, treat with a suitable primer and allow to dry.
Topcoat
Apply an appropriate topcoat and allow to dry, followed by a 2nd coat to finish.
