Precautions to Take When Bending Rebar After Galvanizing

Galvanizing steel rebar is a careful process that, when done well, creates a resilient reinforcement material. For some projects, bending rebar after galvanizing may be necessary or desirable. If you want to achieve this without hurting the zinc coating, there are three important precautions to take.

When and how you bend the rebar will determine how well you maintain the integrity of the zinc coating. Keeping this in mind ahead of time will help you avoid many of the common mistakes made when shaping galvanized rebar. Here’s a breakdown of the three things you should do if you are bending rebar after galvanization.

If any additional questions come to mind as you’re reading, don’t hesitate to reach out to our expert team at South Atlantic Reinforcing.

Precautions You Should Take When Bending Galvanized Rebar

Use the Slightest Angle Possible for Your Project

Another important consideration when bending rebar after galvanization is the depth of the bend. 

Slight angles are easier on the rebar than extreme ones. When you try to pull the rebar into tight, acute angles after galvanization is over, you warp the original coating to a greater extent. This not only introduces a great amount of stress to the steel but also stretches the coating beyond its limit. 

Gentle bends are much easier on both the rebar and its zinc coating. But some galvanized rebar materials can handle more of a bend than others. How deep a bend the galvanized rebar can handle without potential issues depends on its diameter and thickness. Thinner coatings may also handle bending more easily than those that are thicker. 

If you have an area of your construction project that calls for a sharp angle or deep bend, there are other ways to achieve this and still use galvanized materials. Rather than bend your galvanized rebar, you can weld two straight pieces of galvanized rebar together to form an angle. 

You may also be able to use other galvanized steel materials to connect your rebar pieces together for a corrosion-resistant bond that does not compromise on performance.

Slow and Steady is Best When Bending Galvanized Rebar

The final precaution to take when bending rebar after galvanization is to bend it slowly. Rushing the process can damage the zinc coating. 

Forcing the galvanized rebar into a new shape with sudden force can crack the coating, especially if the rebar is cold. But bending it gradually will preserve the coating and allow it to bend with the rebar.

While following just one of these tips can help lessen the damage, following all can make it possible to bend rebar after galvanization with little to no consequence.

What If My Rebar Flakes Or Cracks While Bending It?

Minor cracking or flaking in galvanized rebar can happen even when careful measures are taken during the bending process. Fortunately, the rebar often retains its strength. 

But to maintain its original corrosion resistance, it’s important to fix these flaws. Patching up the exposed areas using one of the industry-approved methods will keep the zinc coating intact and ensure the rebar lasts a long time.

To fix damaged parts, there are three main options:

• Painting with zinc-rich paint is a simple and quick solution that provides a similar level of protection to restore the coating. 
• Soldering is another effective method that involves applying melted zinc to the affected areas for a strong repair. 
• Spraying zinc or a zinc alloy on the damaged surface, also known as metallizing, is another popular option. 

Each method has its benefits depending on the extent of the damage. Picking the right repair method ensures the galvanized rebar remains durable and reliable over time.

South Atlantic Can Help You Build Projects Meant to Last: Learn More About Our Galvanized Rebar Today

At South Atlantic, we are passionate about helping more builders and construction managers like you learn more about galvanized rebar and how to best use it for your projects. 

Reach out to our team today to ask how galvanized rebar would be right for your upcoming build, or read through a few of our blog posts about rebar to help you better understand how it performs under pressure.

We look forward to working with you!