Paint and Coatings Industry Standards


D7488 Standard Test Method for Open Time of Latex Paints

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Revision Date: August 11, 2011
Updated On: August 29, 2011
Editorial Change:
 
Latex paints dry very quickly which often causes difficulty in final appearance of painted areas, especially paints formulated below 100g/L VOC where lower amounts of solvents are in the formulated latex paint. This method is a means of determining the time available before a test paint cannot be worked into a previously painted area.

1.1 This test method covers a procedure to determine the length of time a latex paint remains “wet” or “open” enough to allow for brush-in and repair.

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