The Red Bucket

Carboline
The Red Bucket

The Red Bucket: A Protective Coatings Podcast provides a behind-the-scenes look at the industrial coatings industry. Decision-makers and SMEs from throughout the world of coatings share their processes, practices, and passions with hosts Paul Atzemis and Toby Wall.

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    21. Zinc and a comparison of painting, galvanizing, and metalizing (Feat. Kristen Blankenship)

    It's taken for granted in the corrosion industry that zinc protects steel. But there's more than one way to put zinc on steel and more than one mechanism at work that makes it so protective. Kristen Blankenship returns to The Red Bucket to answer some big questions with even bigger implications:  What's zinc actually doing on painted, galvanized, and metalized surfaces?  How do these corrosion protection methods compare in terms of performance?  Does the standard "zinc-epoxy-urethane" coating system hold zinc-rich primers back from performing as well as they could on their own?  How many ISO 12944-9 testing cycles will it take before any corrosion appears on panels coated in a two-coat inorganic system?  Kristen also contemplates the deathbed of a lonely scientist.  00:00 – Intro  02:13 – A very brief history of cathodic protection  04:05 – Electron chemistry explains behavior  06:15 – Summarizing galvanizing, metalizing, and painting  14:15 – Silicate resin technology is understudied  15:47 – Comparing adhesion of each method  17:09 – Engineers understand paint differently than the other methods  20:16 – Surprising results from cyclic aging testing of a two-coat inorganic system  23:43 – Why is paint held to a higher standard?  26:48 – Zinc loading and a sustainability comparison  Find out more at https://carboline-tech-service-podcast.pinecast.co

    32 min
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À propos

The Red Bucket: A Protective Coatings Podcast provides a behind-the-scenes look at the industrial coatings industry. Decision-makers and SMEs from throughout the world of coatings share their processes, practices, and passions with hosts Paul Atzemis and Toby Wall.

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