Below-grade corrosion protection and groundline coating solutions
AZZ provides specialized below-grade corrosion protection engineered to protect buried and ground-contact steel from corrosion caused by soil, moisture, chemicals, and harsh underground environments. Frequently integrated with hot-dip galvanizing as part of AZZ’s value-added galvanizing capabilities, below-grade coating solutions help extend asset life, reduce maintenance requirements, and improve long-term infrastructure durability.
Widely used across utility transmission and distribution infrastructure, below-grade and groundline coating systems help protect critical steel components exposed to challenging subsurface conditions where corrosion can significantly impact structural performance.
Engineered protection for buried steel structures
Utility transmission, distribution, and infrastructure assets often operate in subsurface environments where moisture, soil chemistry, and environmental exposure can accelerate corrosion. AZZ's below-grade coating and groundline coating solutions are engineered to address these conditions, providing targeted protection for buried steel structures while supporting long-term asset performance and reduced maintenance requirements.
Below Grade Coating Dual Layer System
Below-grade and groundline coating systems play a critical role in protecting buried utility and transmission structures exposed to challenging subsurface conditions where corrosion can significantly impact structural performance.
These specialized coating solutions help improve:
• Corrosion resistance
• Asset longevity
• Environmental durability
• Maintenance intervals
• Long-term infrastructure reliability
Precision surface preparation for coating performance
Durable coating performance begins with proper surface preparation. AZZ utilizes abrasive blasting processes designed to remove rust, mill scale, and surface contaminants while creating the appropriate surface profile for optimal coating adhesion and durability.
Facilities are equipped to accommodate the size and complexity of utility and transmission structures while maintaining consistent preparation quality and coating application standards.
With extensive galvanizing and corrosion protection expertise, AZZ helps utility and infrastructure customers protect buried steel assets, reduce maintenance exposure, and improve infrastructure reliability in harsh subsurface conditions.
