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Testing of Pipeline Coatings for Cold Temperature Applications

This paper describes independent testing to assess the curing characteristics and fitness-for-service of liquid-applied oil and gas pipeline coatings applied at low temperatures. The curing rates and time to cure to a “back-fill” ready condition at various temperatures were determined for eleven coating products using differential scanning colorimetry (DSC). These curing schedules were compared to those provided by the manufacturers.Selected coating products were applied to blast cleaned steel in simulated winter field conditions. Steel substrate and air temperatures were maintained at 0 °C during application curing and measurement of durometer hardness impact flexibility and adhesion. The cold temperature cured coating samples were then tested in accordance with the laboratory methods specified in CSA Z25.30 Table 1. Based on the test results it was concluded that the selected products were suitable for maintenance application to excavated oil and gas pipelines when the lines are operating at temperatures as low as 0 °C. 

Product Number: 51319-12829-SG
Author: Jiajun Liang
Publication Date: 2019
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$20.00
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09046 Performance of External Pipeline Coatings in Low Temperature Conditions

Product Number: 51300-09046-SG
ISBN: 09046 2009 CP
Author: Robert Denzine, Mark Yunovich and Colin S. Scott
Publication Date: 2009
$20.00