ASTM D4262-05 (R2018) PDF Download

ASTM D4262-05 (R2018) is a standard test method that describes procedures for determining the acidity or alkalinity of concrete surfaces that have been prepared by chemical cleaning or etching before coating.

Chemical cleaning and etching are common techniques used to prepare concrete surfaces for coating. However, if residual chemicals are not properly removed through water rinsing, they can negatively impact the performance and adhesion of the applied coatings. Therefore, this test method aims to ensure that any remaining chemicals are removed by measuring the pH level of the final rinsed surface.

The purpose of this standard is to provide a reliable and standardized method for evaluating the cleanliness of chemically cleaned or etched concrete surfaces. By assessing the acidity or alkalinity of the surface, it can be determined whether the cleaning or etching process was effective in removing all residual chemicals. This test method is crucial in ensuring the quality and durability of coatings applied to concrete surfaces.