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There are significant variations in the corrosion environment, service requirements, and maintenance conditions of different types of steel structure buildings. The core of anti-corrosion primer selection revolves around “adapting to corrosion intensity, ensuring adhesion, and matching subsequent coatings”. Below are the primer selection criteria and differences for various common steel structure buildings:

1. Industrial Plant Steel Structures

These buildings are often exposed to dust, oil contamination, mild chemical media, or humid environments, with a moderate corrosion level. They also require cost-effectiveness. For ordinary closed plants, epoxy zinc phosphate primer is preferred. It has flexible surface treatment requirements, adapting to St3-level manual derusting surfaces. It offers good oil resistance and moderate cost, meeting the initial rust prevention needs in dry or slightly humid environments. For scenarios with slightly more severe corrosion such as chemical plants and semi-outdoor plants, epoxy zinc-rich primer (zinc content ≥70%) is used. It resists mild chemical medium erosion through cathodic protection. When combined with epoxy micaceous iron oxide intermediate paint and polyurethane topcoat, it can extend the anti-corrosion service life, suitable for Sa2.5-level derusting surfaces.

• Simple component design (mostly H-beams), fewer processing steps, and high material utilization.
• No complex node design, fast installation speed, low labor costs, suitable for small and medium-sized factories and warehouses.

There are significant variations in the corrosion environment, service requirements, and maintenance conditions of different types of steel structure buildings. The core of anti-corrosion primer selection revolves around “adapting to corrosion intensity, ensuring adhesion, and matching subsequent coatings”. Below are the primer selection criteria and differences for various common steel structure buildings:

1. Industrial Plant Steel Structures

These buildings are often exposed to dust, oil contamination, mild chemical media, or humid environments, with a moderate corrosion level. They also require cost-effectiveness. For ordinary closed plants, epoxy zinc phosphate primer is preferred. It has flexible surface treatment requirements, adapting to St3-level manual derusting surfaces. It offers good oil resistance and moderate cost, meeting the initial rust prevention needs in dry or slightly humid environments. For scenarios with slightly more severe corrosion such as chemical plants and semi-outdoor plants, epoxy zinc-rich primer (zinc content ≥70%) is used. It resists mild chemical medium erosion through cathodic protection. When combined with epoxy micaceous iron oxide intermediate paint and polyurethane topcoat, it can extend the anti-corrosion service life, suitable for Sa2.5-level derusting surfaces.

• Simple component design (mostly H-beams), fewer processing steps, and high material utilization.
• No complex node design, fast installation speed, low labor costs, suitable for small and medium-sized factories and warehouses.

There are significant variations in the corrosion environment, service requirements, and maintenance conditions of different types of steel structure buildings. The core of anti-corrosion primer selection revolves around “adapting to corrosion intensity, ensuring adhesion, and matching subsequent coatings”. Below are the primer selection criteria and differences for various common steel structure buildings:

1. Industrial Plant Steel Structures

These buildings are often exposed to dust, oil contamination, mild chemical media, or humid environments, with a moderate corrosion level. They also require cost-effectiveness. For ordinary closed plants, epoxy zinc phosphate primer is preferred. It has flexible surface treatment requirements, adapting to St3-level manual derusting surfaces. It offers good oil resistance and moderate cost, meeting the initial rust prevention needs in dry or slightly humid environments. For scenarios with slightly more severe corrosion such as chemical plants and semi-outdoor plants, epoxy zinc-rich primer (zinc content ≥70%) is used. It resists mild chemical medium erosion through cathodic protection. When combined with epoxy micaceous iron oxide intermediate paint and polyurethane topcoat, it can extend the anti-corrosion service life, suitable for Sa2.5-level derusting surfaces.

• Simple component design (mostly H-beams), fewer processing steps, and high material utilization.
• No complex node design, fast installation speed, low labor costs, suitable for small and medium-sized factories and warehouses.

There are significant variations in the corrosion environment, service requirements, and maintenance conditions of different types of steel structure buildings. The core of anti-corrosion primer selection revolves around “adapting to corrosion intensity, ensuring adhesion, and matching subsequent coatings”. Below are the primer selection criteria and differences for various common steel structure buildings:

1. Industrial Plant Steel Structures

These buildings are often exposed to dust, oil contamination, mild chemical media, or humid environments, with a moderate corrosion level. They also require cost-effectiveness. For ordinary closed plants, epoxy zinc phosphate primer is preferred. It has flexible surface treatment requirements, adapting to St3-level manual derusting surfaces. It offers good oil resistance and moderate cost, meeting the initial rust prevention needs in dry or slightly humid environments. For scenarios with slightly more severe corrosion such as chemical plants and semi-outdoor plants, epoxy zinc-rich primer (zinc content ≥70%) is used. It resists mild chemical medium erosion through cathodic protection. When combined with epoxy micaceous iron oxide intermediate paint and polyurethane topcoat, it can extend the anti-corrosion service life, suitable for Sa2.5-level derusting surfaces.

• Simple component design (mostly H-beams), fewer processing steps, and high material utilization.
• No complex node design, fast installation speed, low labor costs, suitable for small and medium-sized factories and warehouses.

There are significant variations in the corrosion environment, service requirements, and maintenance conditions of different types of steel structure buildings. The core of anti-corrosion primer selection revolves around “adapting to corrosion intensity, ensuring adhesion, and matching subsequent coatings”. Below are the primer selection criteria and differences for various common steel structure buildings:

1. Industrial Plant Steel Structures

These buildings are often exposed to dust, oil contamination, mild chemical media, or humid environments, with a moderate corrosion level. They also require cost-effectiveness. For ordinary closed plants, epoxy zinc phosphate primer is preferred. It has flexible surface treatment requirements, adapting to St3-level manual derusting surfaces. It offers good oil resistance and moderate cost, meeting the initial rust prevention needs in dry or slightly humid environments. For scenarios with slightly more severe corrosion such as chemical plants and semi-outdoor plants, epoxy zinc-rich primer (zinc content ≥70%) is used. It resists mild chemical medium erosion through cathodic protection. When combined with epoxy micaceous iron oxide intermediate paint and polyurethane topcoat, it can extend the anti-corrosion service life, suitable for Sa2.5-level derusting surfaces.

• Simple component design (mostly H-beams), fewer processing steps, and high material utilization.
• No complex node design, fast installation speed, low labor costs, suitable for small and medium-sized factories and warehouses.

There are significant variations in the corrosion environment, service requirements, and maintenance conditions of different types of steel structure buildings. The core of anti-corrosion primer selection revolves around “adapting to corrosion intensity, ensuring adhesion, and matching subsequent coatings”. Below are the primer selection criteria and differences for various common steel structure buildings:

1. Industrial Plant Steel Structures

These buildings are often exposed to dust, oil contamination, mild chemical media, or humid environments, with a moderate corrosion level. They also require cost-effectiveness. For ordinary closed plants, epoxy zinc phosphate primer is preferred. It has flexible surface treatment requirements, adapting to St3-level manual derusting surfaces. It offers good oil resistance and moderate cost, meeting the initial rust prevention needs in dry or slightly humid environments. For scenarios with slightly more severe corrosion such as chemical plants and semi-outdoor plants, epoxy zinc-rich primer (zinc content ≥70%) is used. It resists mild chemical medium erosion through cathodic protection. When combined with epoxy micaceous iron oxide intermediate paint and polyurethane topcoat, it can extend the anti-corrosion service life, suitable for Sa2.5-level derusting surfaces.

• Simple component design (mostly H-beams), fewer processing steps, and high material utilization.
• No complex node design, fast installation speed, low labor costs, suitable for small and medium-sized factories and warehouses.

There are significant variations in the corrosion environment, service requirements, and maintenance conditions of different types of steel structure buildings. The core of anti-corrosion primer selection revolves around “adapting to corrosion intensity, ensuring adhesion, and matching subsequent coatings”. Below are the primer selection criteria and differences for various common steel structure buildings:

1. Industrial Plant Steel Structures

These buildings are often exposed to dust, oil contamination, mild chemical media, or humid environments, with a moderate corrosion level. They also require cost-effectiveness. For ordinary closed plants, epoxy zinc phosphate primer is preferred. It has flexible surface treatment requirements, adapting to St3-level manual derusting surfaces. It offers good oil resistance and moderate cost, meeting the initial rust prevention needs in dry or slightly humid environments. For scenarios with slightly more severe corrosion such as chemical plants and semi-outdoor plants, epoxy zinc-rich primer (zinc content ≥70%) is used. It resists mild chemical medium erosion through cathodic protection. When combined with epoxy micaceous iron oxide intermediate paint and polyurethane topcoat, it can extend the anti-corrosion service life, suitable for Sa2.5-level derusting surfaces.

• Simple component design (mostly H-beams), fewer processing steps, and high material utilization.
• No complex node design, fast installation speed, low labor costs, suitable for small and medium-sized factories and warehouses.