Heavy-Grain Zinc

This pretreatment for steel is a frequent requirement for military and other demanding applications.

heavy-grain zinc


Heavy-grain zinc is a pretreatment conversion process that involves the electrodeposition of zinc onto a metal surface to create a heavy and dense layer of zinc. This process is commonly used for the preparation of industrial and military parts since it provides a high level of protection against corrosion and other forms of degradation by placing more sacrificial zinc on the surface.

Compared to fine-grain zinc treatment, the coarser coating of heavy-grain zinc makes it ideal for applications exposed to harsh environments, such as military equipment and machinery used in demanding industrial environments. The heavy-grain structure of the deposited zinc creates a more durable and longer-lasting coating, which helps to improve the overall performance while providing greater abrasion resistance. As a result, heavy-grain zinc pretreatment often extends the service life of treated metal parts.

For less demanding applications, Sub Source also offers fine-grain zinc pretreatment.

At Sub Source, we are dedicated to providing our customers with the highest-quality metal prep and finishing services, as well as expert powder and metal coating services. Our team of experts will help you achieve the results you need, on-time and on budget. So give us a call at (815) 968-7800 to discuss your next project. We will be happy to answer any questions you may have and provide you with a fast quote.

Contact Sub Source, Inc. Today

Whether you are looking for more information or are ready to move forward on your project, contact the NADCAP accredited professionals at Sub Source today.

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Let our dedicated team of experts coordinate all of your critical and secondary process needs. With our NADCAP accreditation and ISO certification, you can trust us to complete your project with the highest quality standards.