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Revision Date: April 01, 2006
Updated On: April 01, 2002
Editorial Change: April 1, 2006
This specification covers the requirements for a high performance, two-component, UV-stable polyurethane topcoat (ASTM D 16, Type V polyurethane). It is intended for a topcoat that provides excellent color and gloss retention, not for thick section elastomeric coatings.
Coatings meeting the requirements of this specification are generally suitable for exposures in environmental zones 1A (interior, normally dry), 1B (exterior, normally dry), 2A (frequently wet by fresh water, excluding immersion), 2B (frequently wet by salt water, excluding immersion), 3B (chemical exposure, neutral), and 3C (chemical exposure, alkaline).
The specified coating is intended for application by brush, spray, or roller. It is generally applied over a primer or intermediate coating.
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