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What is the white film on the pavers?

April 26, 2017Film pavers white

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What is the white film on the pavers?

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The whitish powder-like deposit is Efflorescence. It sometimes appears on concrete or clay products. The deposit is a residue of a soluble salt carried to the face of the product by moisture and left on the surface as a dry powder following evaporation of the moisture. Efflorescence will wall and wear off in the course of time. The recommended procedure is to allow this natural process to take place.