Maskote Zinc Stop-Off: High-Temperature Protection for Galvanizing Process
Discover how Maskote Zinc Stop-Off by ZYP Coatings provides exceptional high-temperature protection for steel during galvanizing. This specially formulated solvent-based paint prevents zinc-steel alloying and toe crack formation, ensuring a durable finish. Learn about the innovative mechanism behind Maskote's ability to form a protective carbon char layer, safeguarding the metal substrate from molten zinc. Contact ZYP Coatings for technical support and inquiries in Oak Ridge, TN.
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Presentation Transcript
Maskote Zinc Stop-Off June 24, 2021
Maskote Zinc Stop-Off ZYP Coatings Maskote Zinc Stop- Off is a specially formulated solvent-based paint Withstands normal alkaline and acid bath cleaning prior to galvanizing Prevents zinc-steel alloying during galvanizing As an added benefit, Maskote prevents toe crack formation during galvanizing of steel where thin- walled parts are welded to thick- walled parts
How Maskote works Maskote is a proprietary blend of organic and inorganic high temperature materials Once applied and dried, Maskote forms a sealed layer on the metal surface When exposed to heat in the form of molten zinc, Maskote forms a tough carbon char, similar to burnt sugar on a frying pan, which is held onto the metal substrate by a high temperature inorganic binder system The molten zinc is unable to penetrate or remove the Maskote layer, protecting the underlying steel from molten zinc Steel Galvanized steel Maskote char removed Acid/base cleaning Maskote Steel Molten zinc
How Maskote works The mechanism by which Maskote prevent toe cracks is still under investigation It is hypothesized that the thermal insulation provided by the Maskote layer reduces the stress on the weld during galvanizing
Contact us ZYP Coatings, Inc. Oak Ridge, TN Phone: (865) 482-5717 Technical support: pritt@zypcoatings.com
