Thread Bar Surface Options: Plain / HDG / Epoxy / HDG+Epoxy Double Coating
Choosing the right surface finish for your thread bar and anchor accessories makes a huge difference for your project’s long-term safety against rust. We have 4 practical options to match your job site conditions.
▎Plain Finish
No extra coating, keeps the original steel performance. It works great for dry tunnels, indoor works or temporary projects. Budget-friendly, and the threads fit perfectly with all matching anchor parts.
▎HDG (Hot-Dip Galvanized)
Hot-dip galvanizing adds a strong zinc protective layer. Ideal for open mines and humid outdoor sites. Even if the surface gets small scratches during installation, it still guards the steel from rust.
▎Epoxy Coating
This is our high-performance anti-corrosion choice for tough environments. It keeps salt, chloride and harmful chemicals away from steel. Perfect for coastal salt-fog zones, wet underground mines and heavily corrosive infrastructure projects.
▎HDG + Epoxy Double Coating
Our dual-layer rust protection! Base hot-dip galvanizing plus an outer epoxy coat. It combines the sacrificial anti-rust feature of HDG and the tight barrier protection of epoxy. The best pick for extreme conditions: marine environments, heavy chemical exposure, and key projects requiring decades-long service life.
We supply full sets of thread bar anchoring components, and we can customize surface treatment for you. Just share your site environment with us, and we’ll help you pick the most suitable option for your anchoring project.
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