Spraycrete will bond to concrete, tarmac, brick, internal woodwork and plasterboard. The substrate needs to be sound with the surface dust free and clear of oil or grease.
Concrete surfaces need to be cleaned with a biocidal wash to remove algae and mould, before being acid washed.
Tarmac will need to be power-washed and cleaned with a biocidal wash to remove algea and mould.
Brickwork needs to be cleaned.
Woodwork will need to be cleaned and a primer applied.
Plasterboard will need to be primed.
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