Below Grade Coating

Engineered Protection for Below Grade Steel Structures

Engineered Protection for Below Grade Steel Structures

AZZ provides specialized below grade coating services for steel structures across multiple industries, with a strong focus on transmission and distribution (T&D) infrastructure.

Our coatings safeguard critical components against corrosion caused by soil, moisture, and buried exposure. For utility providers and fabricators, this translates into extended asset life, reduced maintenance, and enhanced reliability.

High-Performance Coatings for Harsh Environments

Our below grade coating systems are designed to perform in the most demanding underground conditions. Each system is selected based on exposure levels, application requirements, and longevity expectations. With decades of experience serving the utility sector, AZZ delivers dependable, field-tested protection—ensuring that the steel backbone of the grid remains strong where it’s most vulnerable: below the surface.

Precision Blasting and Surface Preparation

Achieving long-term performance starts with proper surface preparation. At AZZ, we utilize abrasive blasting techniques to remove rust, mill scale, and surface contaminants, creating a clean and profiled substrate for optimal coating adhesion. Our facilities are built to accommodate the size and complexity of T&D structures, ensuring consistent preparation that meets or exceeds industry standards for below grade corrosion protection.

 

 

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More Surface Technologies
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Duplex Coating

Duplex Coating

Optimal protection achieved through the synergies created by combining hot-dip galvanizing and powder or wet coating

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E-Coating

E-Coating

Urethane-based paint emulsion providing comprehensive coverage for superior corrosion protection

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Mil-Spec

Mil-Spec

Protective coatings which meet military specifications and are designed to protect critical equipment from hazardous agents

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Plating

Plating

Anodizing, chemical film, and zinc plating for aluminum and steel components and substrates

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Surface Prep

Surface Prep

Highly skilled experts provide sandblasting services, the surface preparation critical for a consistent, high-quality finish

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Wet Coating

Wet Coating

Solvent-based paint formulations in an array of colors wet blasted for consistent coverage and corrosion protection