This specification covers a one coat shop primer for open web and long span steel joist and joist girders and for cold formed steel framing. This coating is intended to provide temporary protection to the steel joist during delivery, storage on site, and erection in an atmosphere comparable with SSPC Environmental Zone 1, normally dry. This coating is intended to be used as a holding primer that may or may not be removed before or after erection or assembly in the field.
The specification does not address the formulation of the coating but covers the physical and performance characteristics of the coating.
Wide latitude is given for the composition of the coating. The formulation will be agreed upon between the contracting parties, so that the coating is compatible with the owner’s facility and processes, while meeting or exceeding the performance requirements of this specification.
This specification will cover all generic classes of coatings.
VOLATILE ORGANIC COMPOUND (VOC) REQUIREMENTS:
1) The VOC content of a merchantable coating meeting the compositional and performance requirements of this specification can vary from less than 60 g/L to over 420 g/L.
2) The specifier should consult applicable government regulations to determine the maximum allowable VOC content and the proper VOC test method for their application. As a part of the purchase documents, the specifier should state the required VOC limit, test method, and governing regulations.
