According to SCAQMD Rule 1113 it is difference in gloss: FLAT COATINGS are coatings that register a gloss of less than 15 on an 85-degree meter or less than 5 on a 60-degree meter. NONFLAT COATINGS are coatings that are not defined under any other definition in this rule and that register a gloss of 5 or greater on a 60 degree meter and a gloss of 15 or greater on an 85 degree meter according to ASTM Test Method D 523 as specified in paragraph (e)(6).

Maya Karkour

EcoConsulting

LEEDuser Basic Member

549 thumbs up

Wed, 12/14/2011 - 13:05

So essentially, we need to inquire from the manufacturer whether a paint / coating is Flat or Non-flat. Thanks Petr!

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Flats & Non-flats

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