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Title: Review of formulation and testing procedures for coal tar epoxy (SSPC Paint 16-68T)
Authors: U.S. Army Engineer Waterways Experiment Station.
Beitelman, Alfred D.
Keywords: Coal tar epoxy
Coal tar pitch
Sag test
Coal-tar products
Publisher: Construction Engineering Research Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Description: Technical Report
Abstract: The Corps of Engineers uses the Steel Structures Painting Council (SSPC) specification 16-68T for coal tar epoxy paint extensively. Although performance of the material is unquestioned, difficulty in obtaining the coal tar pitch used in its manufacture has been experienced during energy shortages; this problem has stimulated efforts to revise the specification. This study critically examined the test methods and requirements set forth in the specification and evaluated several pitches as possible replacements. It is recommended that the sag test be simplified without altering the test requirement; that the nonvolatiles requirement be altered if a proposed change in the packaging ratio is implemented; and that coal tar pitch RT-12 be used as a replacement for the pitch now specified -- if requirements can be written to provide a pitch with a minimum of water-extractable material, and if the odor requirement of the present specification is eliminated.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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