Meaning and use

4.1 Surfactant staining is a common problem with outdoor coatings, especially when subjected to humid conditions (such as morning dew) shortly after application.

4.2 Surfactant contamination may also occur with indoor coatings used in humid areas such as kitchens and bathrooms.

4.3 Leaching of water-soluble materials may depend on the colorant dispersion mixed into the tonal base coating. Other coating components may also affect the leaching of water-soluble materials.

ASTM D7190-15 Standard Practice for Evaluating Leaching of Water-Soluble Substances from Latex Paint Films

Step 1: Scope

1.1 This practice includes the ability of the latex paint film to resist contamination due to leaching of water-soluble substances when it comes into contact with water shortly after application.

1.2 Water pollution is attributable to leaching of surfactants or other water-soluble materials from the paint film.

1.3 Values expressed in SI units shall be regarded as standard values.

1.4 This standard is not intended to address all safety concerns, if any, associated with its use. It is the responsibility of users of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory restrictions prior to use.