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A comparison of the long-term outdoor performance of two modern paint coating systems and a traditional lead-based paint applied to historic wrought iron

Meehan, Peter, Emmerson, Nicola and Watkinson, David 2022. A comparison of the long-term outdoor performance of two modern paint coating systems and a traditional lead-based paint applied to historic wrought iron. Presented at: Metal 2022: 10th Interim Meeting of the ICOM-CC Metals Working Group, Helsinki, Finland, 5 - 9 September 2022.

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Abstract

A real time 5-year outdoor study compares the performance of three paint systems (traditional oil based; acrylic; epoxy resin) applied to naturally corroded wrought iron, with their surfaces prepared to Swedish Standard Sa2.5 or Steel Surface Preparation Standard ST3. Interim data at 2 years reports on gloss, colour change, pull-off testing and EIS measurements. Traditional oil-based paint exhibited significant visual change; a modified alkyl paint underwent minor but visually undetectable changes and an epoxy/acrylic coating remained unchanged. The oxide layer in ST3 controlled adherence of the coatings.

Item Type: Conference or Workshop Item (Paper)
Status: Unpublished
Schools: History, Archaeology and Religion
Subjects: C Auxiliary Sciences of History > CC Archaeology
Q Science > QD Chemistry
T Technology > T Technology (General)
Date of First Compliant Deposit: 4 May 2022
Date of Acceptance: 23 February 2022
Last Modified: 01 Oct 2022 01:30
URI: https://orca.cardiff.ac.uk/id/eprint/149535

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