Construction Machinery Anti-Corrosion Solution

Application Scenarios

Excavators, loaders, cranes, road rollers, concrete mixer trucks, and other construction engineering machinery.

Selection Logic

Construction machinery coating systems must balance corrosion protection, impact resistance, repairability, color appearance, and production efficiency. The right system depends on whether the equipment is for cost-sensitive repainting, standard factory finishing, or higher-durability outdoor service.

Recommended Coating Systems

Standard Option

Coat	Product	Coats	DFT (μm)
Primer	Alkyd Anti-Rust Primer	1	60-80
Topcoat	Alkyd Enamel	1	60-80
Total		2	120-160

Mid-Grade Option

Coat	Product	Coats	DFT (μm)
Primer	Acrylic Primer	1	60-80
Topcoat	Acrylic Enamel	1	60-80
Total		2	120-160

Mid-High Option

Coat	Product	Coats	DFT (μm)
Primer	Epoxy Primer	1	80
Topcoat	Acrylic Polyurethane Topcoat	2	80
Total		3	160

Premium Option

Coat	Product	Coats	DFT (μm)
Primer	Epoxy Zinc-Rich Primer	2	160
Intermediate	Epoxy MIO Intermediate Coat	1	80
Topcoat	Acrylic Polyurethane Topcoat	2	80
Total		5	320

Surface Preparation

• Blast cleaning Sa2
• Surface roughness Rz 40-70 μm

Design Life Reference

• Standard option: 3-5 years
• Mid-grade option: 5-8 years
• Mid-high option: 8-12 years
• Premium option: 12-15 years

Related ISO 12944 Classes

• C2-C3: general machinery and inland service.
• C4: equipment used in industrial or higher-humidity outdoor environments.
• C5: coastal or severe service, requiring higher-build systems and closer technical review.