Can pre-project coating testing lead to post-application performance ? / Valerie Sherbondy in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 32, N° 4 (04/2015)

[article]  inJOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 32, N° 4 (04/2015) . - p. 15-20 Titre : Can pre-project coating testing lead to post-application performance ? Type de document : texte imprimé Auteurs : Valerie Sherbondy, Auteur Année de publication : 2015 Article en page(s) : p. 15-20 Langues : Américain (ame) Catégories : Certification Essais (technologie) Revêtements (produits chimiques):Peinture (produits chimiques) Revêtements:Peinture Index. décimale : 667.9 Revêtements et enduits Résumé : Many agencies and facility owners require testing of coating products and systems prior to their use on a coating project. This is not an original concept; developing a qualified products list (or QPL) is becoming more commonplace, as not ail coatings and coating systems are created as equals, even if they are in the same generic category. However, the big question remains: is the cost of establishing and maintaining a QPL worth it, or should the burden be placed on the manufacturer of the coatings to provide evidence of performance ? Note de contenu : - Case study 1 : Baseline testing/batch verification - Case study 2 : Case study 2 : MIL-SPEC/formulation testing - Case study 3 : Multiple products/product misusage Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23979 [article]

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Corrosion in less than one year is the pits ! / Valerie Sherbondy in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 33, N° 2 (02/2016)

[article]  inJOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 33, N° 2 (02/2016) . - p. 15-21 Titre : Corrosion in less than one year is the pits ! Type de document : texte imprimé Auteurs : Valerie Sherbondy, Auteur ; Richard A. Burgess, Auteur Année de publication : 2016 Article en page(s) : p. 15-21 Langues : Américain (ame) Catégories : Corrosion par piqure pH Pipelines -- Corrosion Pipelines -- Revêtements protecteurs Protection cathodique Revêtements poudre:Peinture poudre Surfaces -- Analyse Transition vitreuse Index. décimale : 667.9 Revêtements et enduits Résumé : Section Ioss of pipe wall is of great concern in the pipeline industry. Reduced wall thickness due to pitting corrosion can adversely impact pipeline integrity ; the results of which can be catastrophic depending on the product that the pipeline is transporting. In order to reduce the opportunity for corrosion, the use of protective coatings is often supplemented with irnpressed current cathodic protection (CP) systems to protect the pipe from corrosion, pitting and eventual perforation in the event of a breach in the protective coating system. In the instance discussed in this article, a pipe section that was excavated displayed severe pitting despite the application of a proven powder coating system and the installation of an impressed current CP system. A section of pipeline needed to be excavated in a relatively small area to accommodate new construction in the surrounding area. The pipeline was buried and put into service only about six months earlier, so corrosion and coating failure were not expected. However, failure of the powder coating system and severe pitting was evident on the excavated pipe section. The pipeline owner was notified to witness the excavation and to examine the condition of the pipe. After the initial section of pipe was excavated, additional lengths of pipe were exposed to determine the extent of the corrosion which was occurring in relatively deep pits that appeared randomly on the pipe sections in two areas. The other sections of excavated pipe revealed no visible corrosion. A section of the 24-inch pipe was removed and replaced. From this section a smaller 15-by-48-inch section was delivered to the laboratory along with a copy of the specification governing the application of the powder coating. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25628 [article]

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Improper selection of a maintenance strategy takes corrosion protection from bad to worse / Valerie Sherbondy in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 27, N° 1 (01/2010)

[article]  inJOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 27, N° 1 (01/2010) . - p. 13-21 Titre : Improper selection of a maintenance strategy takes corrosion protection from bad to worse Type de document : texte imprimé Auteurs : Valerie Sherbondy, Auteur ; Richard A. Burgess, Auteur Année de publication : 2010 Article en page(s) : p. 13-21 Langues : Américain (ame) Tags : Structure  métallique  Corrosion  Maintenance  Revêtement  anticorrosion  Choix  revêtement  Spécification  Stratégie  lutte  corrosion Index. décimale : 667.9 Revêtements et enduits Résumé : When conducting a coating failure investigation. The investigator's first inquiries should be "what was supposed to be done", and "does it make sense ?" The answers to these questions are typically revealed in the specification for the project. However, in this "Case from the F-file," there was very little information in the specification to guide the investigation ; and there was little information available from the application, because in-process inspection was not performed. These circumstances made the failure much Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8389 [article]

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Incorrect mixing of multi-component coatings / Valerie Sherbondy in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 31, N° 4 (04/2014)

[article]  inJOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL) > Vol. 31, N° 4 (04/2014) . - p. 15-24 Titre : Incorrect mixing of multi-component coatings Type de document : texte imprimé Auteurs : Valerie Sherbondy, Auteur ; Richard A. Burgess, Auteur Année de publication : 2014 Article en page(s) : p. 15-24 Langues : Américain (ame) Catégories : Analyse spectrale Analyse thermique Azote Epoxydes Mélanges (chimie) Peinture bi-composant -- Défauts Polyurée Polyuréthanes Index. décimale : 667.9 Revêtements et enduits Note de contenu : - CORRECT MIXING RATIO - EFFECTS OF OFF-RATIO MIXING - EVIDENCE OF MIS-MIXING BY COATING TYPE : Epoxy - Urethanes - Polyureas - EXAMINING COATINGS FOR MIXING RATIO VARIATIONS : Solvent sensitivity - Analytical methods - Infrared spectroscopy - Differential scanning calorimetry - Nitrogen content Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21645 [article]

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