The eLearning Center for Gatlin Education Services

Hot-dip galvanizing (HDG) offers many advantages relative to other corrosion protection systems. HDG offers both barrier protection of the substrate and cathodic protection. No paint system can do that. Unlike paint, HDG is actually THICKER at edges and corners, where paint systems are most susceptible to failure. And HDG can protect nooks and crannies that paint just can’t get to. Additionally, HDG is UV-resistant and is extremely durable. When applied to steel, HDG is actually harder than the steel substrate that it protects. Oh yes, let’s not forget that HDG provides immediate protection when it comes out the vat. There’s no need for the extended “curing” period required by many coating systems before the coated component can be placed into service.

In this course, you’ll learn the mechanisms of steel corrosion and how HDG protects steel by providing both barrier and cathodic protection. We’ll discuss the steps involved in HDG and how to prepare your assembly for HDG application. The course also looks at other methods for applying zinc to metallic components and how these alternate methods compare to HDG in both application and performance. Finally, we’ll examine the superior durability and protection afforded by a duplex system, which contains a HDG base combined with a topcoat paint system.

The student must take a multiple-choice quiz consisting of fifteen (15) questions at the end of this course to obtain PDH credits.

State Board Acceptance

This course can be used by professional engineers to fulfill PDH requirements mandated by state and provincial licensing boards. Decatur Professional Development is an approved provider of continuing education in all states that pre-approve course providers. In all other states that mandate continuing education for engineers, it is the individual engineer's responsibility to determine the suitability of activities for PDH credit. The state boards typically accept online* courses that cover technical, managerial** or ethical content and which are relevant to the practice of engineering. The course must have a clear purpose or objective with a content that will maintain, improve or expand the skills and knowledge of the licensee's field of practice. For questions about your mandatory PDH requirements, visit the website of your state licensing board.

*Online courses are accepted by all state licensing boards that mandate continuing education. Other than New York (which limits online courses to 18 PDH) and Iowa (which limits online courses to 6 PDH), there are no limits placed by other states on the number of hours that can be earned through online continuing education. Consult with your state licensing board if you have any questions about the acceptability of online courses.

**The New York State Board of Engineers does not accept general office management courses, but will accept project management courses that are offered by an approved provider and that are technical in nature and contribute to the engineer's professional practice.

Please Note: Continuing Education credits for this course are awarded as PDH (Professional Development Hour Credits).