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TechForum Presentations

Tuesday, October 11

Alana Fossa & others

American Galvanizers Association

Lessons Learned from Intergalva 2022 & Current Industry Threats

Come hear a recap of key updates from Intergalva 2022 held in Rome, Italy where emphasis was placed on energy and decarbonization. Alana will give updates on ongoing research in Europe and synergies between other industry associations. AGA Members that attended Intergalva will also be available to share their thoughts.

James Arahill

V&S Amboy Galvanizing LLC

Elevated Finishing for AESS Projects

Architecturally Exposed Structural Steel (AESS) makes up a growing portion of the North American building market and presents a large opportunity for HDG to be specified. For galvanizers to be successful and profitable in this market, visual appeal is important when it comes to winning bids and earning repeat work from architects. This presentation will address a combination of galvanizing best practices and talking points with the customer that can minimize issues before they can become costly on many levels. Firsthand experience and example projects will be explored. AGA Technical Director Alana Fossa will also give a preview of the AGA’s new AESS Guide for Galvanizers and the new online AESS Training Course for Galvanizers.

Jeff Cunningham

American Galvanizers Association (AGA)

AGA Inspection App Update

The AGA has recently launched an update to our popular Inspection of Galvanized Steel App, available for free in both the Apple and Google Play stores. The App is a visual guide to identifying various surface conditions present after hot-dip galvanizing. Jeff will give a demonstration of the app.

Bernardo Duran

International Zinc Association (IZA)

Conflict Resolution during HDG Inspections

What do you do when the customer’s expectations and the project specification requirements do not align? This presentation will explore the topic of conflict resolution as it relates to HDG finishing & inspection.

John Roy

Connecticut Galvanizing

In-Person Plant Tour Preview

Come learn about what to expect on Wednesday morning’s galvanizing plant tour of Connecticut Galvanizing. Since 1978, Connecticut Galvanizing is a family-owned business and Structural Steel Fabricators of New England (SSFNE) member with a reputation for excellence in providing hot dip galvanizing but also many years of strategic relationships to offer Duplex Systems from painters and powder coaters skilled in coating over galvanizing.

Mark Willand

Riverdale Mills

In-Person Plant Tour Preview

Come learn about what to expect on Wednesday morning’s galvanizing plant tour of Riverdale Mills Corporation. Riverdale Mills is a leading American manufacturer of premium quality welded wire mesh fabrics for the marine, security, construction and agriculture industries. Riverdale invented Aquamesh®, the industry-standard wire mesh used for building lobster and aquaculture traps, and WireWall®, a high-security fencing wire mesh used globally to protect embassies, airports, refineries, and borders.

Wet Storage Stain – Small Group Discussion

Wet storage stain, the visible formation of zinc oxide and zinc hydroxide on the surface of the galvanized steel, is one of the most common complaints from inspectors and end-users regarding hot-dip galvanized products. Attendees will break into small groups led by TechForum planning committee members to discuss and exchange ideas on addressing customer concerns, cleaning vs. weathering, passivations, and other solutions.

Wednesday, October 12

Jeff Truskowski

DeFelsko Corporation

Overcoming Challenges Measuring Galvanized & Duplex Coating Thickness

This presentation will detail coating thickness gages used within the zinc galvanizing industry and describe the different types of hand-held gages, the latest gage technology, the measurement process, best practices, and precautions to be taken.

Due to the shape and composition of galvanized parts, measuring the zinc thickness can be challenging. Most dry film thickness gages are factory calibrated to perform well on flat, smooth carbon steel. Your application may be different. Conditions such as surface roughness and geometry that affect accuracy must be accounted for. Today, a variety of probe styles and measurement solutions overcome the challenges of hot temperatures, concave/convex surfaces, and oddly shaped parts.

In addition, a discussion on duplex coating thickness gages developed to overcome the challenge of simultaneous measurement of paint and zinc thickness on steel parts.

Michael Williams

Duncan Galvanizing Corp.

Virtual Plant Tour: Duncan Galvanizing Corp.

Since 1890 Duncan Galvanizing, located in Everett, MA (just outside of Boston), is a locally owned family business serving all New England states, New York, and Canada. By offering a variety of paint and powder coating technologies, Duncan Galvanizing provides state-of-the-art hot dip galvanizing and high-performance architectural finishes for metal substrates such as galvanized steel, aluminum and "black steel" (uncoated steel).

Maxim Dubé


Hot Dip Galvanized Repairs with Organic Zinc-Rich Coating

This presentation will explore the use of a surface-tolerant organic zinc-rich paint technology to address customer concerns related to wet storage stain in the field. Practical considerations regarding adhesion testing versus surface preparation will be discussed along with case studies such as the refurbishment of 24 HDG radio towers in 2020.

Bernardo Duran

International Zinc Association (IZA)

Application and Inspection of Metallizing Repairs on HDG

Thermal spray zinc metalizing and its alloys are used in many industries to provide corrosion protection but also to provide repair of hot-dip galvanized coatings. To ensure continued coating performance in these harsh environments, it is necessary to properly inspect the thermal spray metalizing. This presentation will examine how the surface preparation and thermal spray processes (arc spray and flame spray) are similar to and different from other corrosion protection systems as well as best practices for inspection at the HDG plant.

Thursday, October 13

Christine Kleen

American Galvanizers Association (AGA)

HDG Carbon Emissions – Industry Update

Come learn about the activities and efforts of the AGA’s Climate Change / Carbon Emissions Task Group comprised of AGA members. The goals of this task group are to develop a template to assist any HDG member capture/report carbon emissions for facilities in a consistent manner and with consistent/accurate terminology and to establish a general list of best practices for reducing these emissions at plant level.

Adam Ryan

International Zinc Association (IZA)

Stormwater Run-off from HDG Structures & SDG Zinc Sector Roadmap

Come learn about efforts from the Zinc Stormwater Run-off Task group (joint effort of AGA & IZA) to determine sources of misconceptions regarding zinc runoff and standards prohibiting zinc coatings near sensitive waters which are deterring specifiers in the marketplace from specifying HDG bridges, buildings, and more. Additionally, an overview of IZA’s Zinc Sector SDG Roadmap will be provided.

Jared Kaufman

CIC Pittsburgh LLC

Decarbonization Options for the Hot Dip Galvanizing Furnace

Global concerns have recently resulted in an interest in the potential decarbonization of the steel industry. To date, most of the focus has been on the steelmaking process. Meanwhile, there has been very little attention on the downstream hot dip galvanizing operation. In hot dip galvanizing, the largest direct generators of carbon dioxide emissions are the galvanizing furnaces. Most operations in North America utilize natural gas-fired furnaces, which have been the most economical option. However, it may now be time to start considering the possibility of retrofitting existing furnaces for the purpose of reducing or eliminating carbon dioxide emissions. This paper examines a typical hot dip galvanizing operation, providing an evaluation of the baseline carbon dioxide generation rate, options for achieving reductions or elimination of carbon dioxide emissions, and the potential economic impact.

Drew Flynn, Christopher Borgen

Marsh & McLennan Agency

Environmental, Social, and Governance (ESG) - Realities vs. Aspirations

ESG concerns are moving toward the center of corporate decision-making. This presentation will review social equity, sustainability and accountability applicable to HDG facilities.

Oliver Herwig & Marco Antunes

Dipl.-Ing. Herwig GmbH

A Novel Concept Technology for Nickel Alloying

This presentation will feature information on a novel proprietary technology for nickel alloying in HDG baths. This concept emerged from growing interest to have a more straightforward way of introducing and maintaining nickel content levels during regular operation in conjunction with an environmental safe application.

Christine Kleen

American Galvanizers Association (AGA)

AGA Technical Department Project Updates

The TRI /Form-R guideline reviews hot-dip galvanizers requirements for reporting the USEPA Toxics Release Inventory (TRI or Form R) with an emphasis on specific chemicals used in the industry that are on the TRI-listed chemical list. AGA will preview a spreadsheet tool designed alongside this guide to assist the galvanizer in calculating the thresholds and release estimates needed to complete the TRI.

Next AGA will preview the Burnett curve, established in 2022, which describes the effect of iron concentration on pickling rates at 60 C (140 F) for sulfuric acid, similar to the Kleingarn Curve for hydrochloric acid. AGA via the University of Kansas is currently investigating the regeneration of solutions by removing a part of the ineffective solution and replacing it with fresh acid, water, or the contents from another bath to lower the iron concentration and improve cleaning times. This practice greatly extends the life of the bath, optimizes acid use, minimizes disposal, and overall improves sustainable practices in the HDG process.

Finally, AGA is giving our Guidelines and Notes a new, modernized format. Most of the AGA documents will be converted throughout 2023-2024.