2026-09-11
Zinc Rich Epoxy Primer for Heavy Duty Steel Structure Protection
Zinc epoxy primer for bridges is a high-performance waterborne epoxy zinc-rich coating specially designed for corrosion protection of steel structures in harsh environments. As an electrochemical anti-corrosion primer, it provides excellent rust resistance and strong adhesion by utilizing zinc powder protection technology, helping extend the service life of bridge structures and other heavy-duty steel applications.
This two-component epoxy zinc-rich primer forms a hard, durable, and corrosion-resistant coating film after curing. It is suitable for bridges, construction steel structures, pipelines, power equipment, transportation facilities, and mechanical equipment requiring long-term protection against corrosion. With water as the thinner and cleaning medium, it features low pollution, non-flammable properties, and environmentally friendly application characteristics.
Product Features
- Excellent corrosion protection through zinc-rich electrochemical anti-corrosion mechanism
- Strong adhesion and durable protective film after curing
- Suitable for bridge steel structures and heavy-duty industrial applications
- Water-based formulation with low VOC content and environmental advantages
- Lead-free, non-toxic, quick-drying, and good rust prevention performance
- Safe construction without flammable or explosive solvents
- Compatible with spraying, brushing, and roller coating methods
Applications
Zinc epoxy primer for bridges is widely used as a protective base coating for various steel structures, including:
- Bridge steel structures and transportation infrastructure
- Construction machinery and heavy equipment
- Power equipment and industrial facilities
- Steel pipelines and metal structures in corrosive environments
- Vehicles and other outdoor steel applications
It provides reliable protection in environments exposed to moisture, oxidation, and atmospheric corrosion, making it an ideal foundation coating for long-term anti-corrosion systems.
Technical Characteristics
| Item | Specification |
|---|---|
| Product Type | Waterborne two-component epoxy zinc-rich primer |
| Product Model | H06-1-9 |
| Color | Grey |
| Zinc Powder Content | 50% |
| Solid Content | 68% |
| Specific Gravity | About 2.2-2.3 kg/L |
| VOC Content | ≤60g/L |
| Gloss | Matte |
| Water Resistance | Good |
| Chemical Resistance | Good |
| Flash Point | 65℃ |
| Recommended Dry Film Thickness | 40μm |
| Recommended Wet Film Thickness | 150μm |
Surface Preparation and Application
Before applying zinc epoxy primer for bridges, steel surfaces should be properly prepared to ensure maximum coating performance. New steel structures should be abrasive blasted to Sa2.5 grade, removing visible grease, dust, rust, scale, and old coatings. Existing coated steel should be clean, dry, and firmly attached, with loose rust and contaminants removed.
The coating can be applied by high-pressure airless spraying, air spraying, brushing, or roller coating. Fresh water can be used for dilution and equipment cleaning, making the construction process more convenient and environmentally friendly.
Advantages for Bridge Protection
Compared with traditional solvent-based primers, this waterborne epoxy zinc-rich primer offers improved safety and environmental performance while maintaining reliable anti-corrosion protection. Its durable coating film helps reduce maintenance frequency and provides long-term protection for bridge steel structures under demanding outdoor conditions.
For customized solutions, technical support, and product information about zinc epoxy primer for bridges, please contact our professional team.
Would you like to learn more about our products and how we can help you? Please leave your contact information here, and we’ll reach out to you promptly.
Address: Dongfeng Village, Hengshanqiao Town, Wujin District, Changzhou City, Jiangsu Province, China