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Paint and Coatings Industry Standards
D4262 Standard Test Method for pH of Chemically Cleaned or Etched Concrete Surfac
Chemical cleaning and etching is used to prepare concrete for coating.
Residual chemicals not removed by water rinsing may adversely affect the performance and adhesion of coatings applied over prepared concrete surfaces. It is the intent of this test method to determine that residual chemicals have been removed by measuring the acidity or alkalinity of the final rinsed surface.
