Problem Solving Forum

January 27 - January 31, 2020

If I apply 140 microns of inorganic zinc to a steel substrate with a 75 micron profile, is there any concern about cracking of the primer during storage, shipment, and erection of the structure, or with field-application of a topcoat?

Selected Answers

From William (Willie) Mandeno of WSP NZ on February 7, 2020:
It depends on the formulation of the IOZ but mud c more

From HECTOR MEDINA of PEQUIVEN on February 2, 2020:
Good point from Larry Muzia. But I think that it's more

From Larry Muzia of Exceletech Coating & Applications, LLC on January 31, 2020:
To start, a 3-mil profile is excessive for an ioz more

From David Lemke of Team Industries on January 30, 2020:
While most IOZ is recommended for application at&n more

From Jon Cavallo of Jon R. Cavallo PE LLC on January 30, 2020:
Just a few items to clear up. 1. "Mud Cracking" i more

From Josh Skinner of The Sherwin-Williams Company on January 30, 2020:
140 microns (5.5 mils) DFT for IOZ is excessive. more

From Ron Berry of NZ Corrosion Services Ltd on January 29, 2020:
There should not necessarily be a concern, particu more

From Kalpesh Patel of Endura Manufacturing Co. Ltd. on January 28, 2020:
For IOZ coatings, mud cracking is very common prob more

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Tagged categories: Asia Pacific; Coating Application; EMEA (Europe, Middle East and Africa); Latin America; North America; Steel; Zinc-rich (inorganic)