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February 15 - February 19, 2021

How do you remove all traces of an uncured internal coating from a tank when abrasive blasting is not an option?

Selected Answers

From Pierpaolo Bonora of TECHNO TRUST on February 24, 2021:
I dont' want to suggest use of solvent in a confined space like internal of tank, to avoid high concentration of volatile vapour, especially if ventilaton not properly used. UHPWJ is the best way, sealing the nozzlesand using vacum system ( air and water) for removing all material.

From Bryant Chandler of Greenman-Pedersen, Inc. on February 22, 2021:
I would strongly consider the use of UHPWJ with vacuum recovery like what is used on ship hulls and carrier decks. Vacuum recovery would be necessary to keep a thin film of the uncured coating from redepositing on the surfaces.

From Aajjay Sunkay of ASSETREIFURB ENGINEERRS on February 17, 2021:
Remove the umanually by scrapper then use solvent cleaning for removal of traces of uncured coating. Use of solvent for cleaning is mentioned by coating manufacturer in his product data sheet. Or otherwise mostly Methyl ethyl ketone, Butanol, isopropyl Alcohol mixture is used for removal of uncured epoxy coating. And Styrene for Polyester / Vinylester resin based coating

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Tagged categories: Asia Pacific; EMEA (Europe, Middle East and Africa); Latin America; North America; Surface Preparation; Tank interiors

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