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Surface Finish: 4 Common Types You Should Know


Surface Finish: 4 Common Types You Should Know

You may find many types of surface finishing in your rigging items, hot dipped galvanized shackles, painted hoist hooks, or zinc plated chains. Surface finishing is essential for the practical use of steel. When left unprotected, the steel will react with oxygen to form rust. This means that colorful exteriors aren’t just decorative—they are functional barriers that prevent corrosion.

Here in this article, we will help you understand the common types of surface finishing used in rigging industry.

1. Hot dipped galvanized

Hot dipped galvanized is a form of galvanization, it is the most common form of surface finishing on the rigging items, with a rough look, not very smooth and precise, although it is considered superior in terms of cost compared with stainless steel, and can protect the carbon steel underneath from further corrosion in many circumstances, but don’t last a very long time in salt water, it is usually used for the safety factor 6 times W.L.L forged shackles.

Hot dipped galvanized shackle

2. Zinc-coated

Zinc-coated, also called zinc-plated, galvanised, or electro galvanized,  It is another way applying a protective zinc coating to steel or iron, to prevent rusting, but this is a more controlled process that allows for a much smoother and looks better than hot dipped galvanized, but the zinc plated doesn’t last as long compared to being hot dipped galvanized.

Zinc-coated shackle

3. Painted coated

Painted steel is commonly layered with rust resistant paint to the self-colored steel with a painted gun, once the painted coating reaches the desired thickness, the rigging items are placed in a curing oven, the curing creates thermal bonds between paint particles, resulting in a smooth, beautiful and hard finish, please find the common painted coated rigging hooks for your understanding.

Painted coated shackle

4. Self-colored

Self colored refers to a plain carbon steel that has a very thin coating of protectant applied at a factory, we usually add the rust resistant oil on the self colored rigging items surface.

Hope you have known the common surface finishing types and understood the differences between them. Let us know if you need any of the rigging hardware products we offer, we can take your business to the next level.

Self-colored shackle

If you want to get more useful knowledge about the surface finish of rigging items, you can contact us by email at We will be glad to share with you more useful information.


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