SSPC: The Society for Protective Coatings
Paint SPECIFICATION NO. 39
Two-Component Aliphatic Polyurea Topcoat Fast or Moderate Drying,
1.1 This specification contains performance requirements for a
two-component, weatherable polyurea topcoat.
The coating may be fast or moderately fast drying (see Note
1.2 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), and 2B
(frequently wet by salt water, excluding immersion). Resistance of
polyurea topcoats in Environmental Zones 3B (chemical exposure,
neutral) and 3C (chemical exposure, alkaline) can vary based upon
formulation. The coating manufacturer should be contacted for
specific chemical resistance data if required.
1.3 The specified coating is intended for application by
single-component airless spray, electrostatic spray, or
equipment, depending upon its formulation.
1.4 This coating is intended for use as a topcoat over suitably
primed ferrous metal and cementitious substrates.
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