Meaning and use

5.1 Latex paints dry quickly, which often results in a difficult final appearance of the painted area, especially for paints formulated below 100g/L VOC, where the formulated latex paints contain a smaller amount of solvent. This method is a way to determine the time available before the test paint cannot be processed to the previously painted area.

ASTM D7488-16 Standard Test Method for Opening Time of Latex Paints

Step 1: Scope

1.1 This test method includes procedures for determining the length of time the latex paint remains “wet” or “open” enough to allow brushing in and repair.

1.2 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.