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Parchem Construction Supplies

Preco RWB

Preco RWB

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Surface revealing liquid for exposed aggregate finish on fresh concrete.

Preco RWB is used to reveal aggregate in freshly placed horizontal concrete by delaying the surface set so that the mortar paste may be brushed and washed from between the aggregate particles, after the mass of the concrete has set. This produces an attractive exposed aggregate finish, or a key for subsequent pours or renders, e.g. floors, precast walls and slabs, paving, etc.

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