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51316-6970-Development Of Spray-Applied Pipeline Erosion-Protective Epoxy Linings

Picture for Development Of Spray-Applied Pipeline Erosion-Protective Epoxy Linings
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This paper aims to present a novel class of pipeline protective lining materials that provide erosion-corrosion resistance combined with negligible wear to spray equipment. These coatings have been formulated with a blend of thermoplastic fillers rather than the traditional ceramic fillers used for erosion resistance.

Product Number: 51316-6970-SG
ISBN: 6970 2016 CP
Author: Osmay OHarriz
Publication Date: 2016
Industry: Coatings and Linings
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$20.00
$20.00

This paper aims to present a novel class of pipeline protective lining materials that provide erosion-corrosion resistance combined with negligible wear to spray equipment. These coatings have been formulated with a blend of thermoplastic fillers rather than the traditional ceramic fillers used for erosion resistance. The low temperature (LT) coating is recommended for ambient service conditions whilst the high temperature (HT) coating is recommended for operating conditions up to 200ºF. These coatings have been designed to facilitate spray applications in conjunction with robotic technology and are suitable for achieving higher build dry films in one coat without sagging. The use of spray-applied erosion resistant ceramic epoxy composite coatings to protect pipeline field joints may not be an option as these coatings cause extensive damage to spray equipment due to the hard angular nature of the ceramic filler employed. Application of such coatings by brush or roller will therefore restrict their use to man-entry pipelines. During comparison evaluation of erosion resistance LT and HT thermoplastic coatings exhibit performance characteristics that are superior to traditional ceramic epoxy composite coatings and demonstrate minimum damage to the spray equipment.

Key words: downloadable, liquid epoxy, pipeline coating, internal field joint, girth weld, erosion resistant, abrasion, impingement, wear, sprayable, spray friendly, ceramic filler, thermoplastic filler

 

This paper aims to present a novel class of pipeline protective lining materials that provide erosion-corrosion resistance combined with negligible wear to spray equipment. These coatings have been formulated with a blend of thermoplastic fillers rather than the traditional ceramic fillers used for erosion resistance. The low temperature (LT) coating is recommended for ambient service conditions whilst the high temperature (HT) coating is recommended for operating conditions up to 200ºF. These coatings have been designed to facilitate spray applications in conjunction with robotic technology and are suitable for achieving higher build dry films in one coat without sagging. The use of spray-applied erosion resistant ceramic epoxy composite coatings to protect pipeline field joints may not be an option as these coatings cause extensive damage to spray equipment due to the hard angular nature of the ceramic filler employed. Application of such coatings by brush or roller will therefore restrict their use to man-entry pipelines. During comparison evaluation of erosion resistance LT and HT thermoplastic coatings exhibit performance characteristics that are superior to traditional ceramic epoxy composite coatings and demonstrate minimum damage to the spray equipment.

Key words: downloadable, liquid epoxy, pipeline coating, internal field joint, girth weld, erosion resistant, abrasion, impingement, wear, sprayable, spray friendly, ceramic filler, thermoplastic filler

 

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