Steel Coating & Repair Services

The hardest corrosion to catch is the corrosion you cannot see. Wet insulation traps moisture against hot pipe and vessel walls. The damage stays hidden under the lagging until an inspector finds severe wall loss. AAS brushes a high-temperature barrier coating onto the steel under the insulation while the line stays in service. It protects the metal across the temperature band where corrosion under insulation does its worst. Where cladding has failed, we seal the insulation jacket with a reinforced membrane and weather-side coating. Water stops reaching the pipe at seams, support legs, and penetrations.

For hot tanks, vessels, and pipework that cannot be cooled or drained, we coat and line them in place. Ceramic-filled systems are matched to the actual operating temperature. The asset keeps running. On hot bolted assemblies, a high-temperature anti-seize on fasteners and mating faces means the next teardown is an unfastening job, not a cutting job.

Abrasion is constant in a steel plant, and replacement plate never quite keeps pace with it. Sliding bulk material wears through chutes, hoppers, silos, and mill liners. AAS lines those surfaces with cold-applied ceramic-filled coatings sized to the particle and the flow. The lining recoats inside the maintenance window, and the plate underneath lasts longer between changeouts. Wear plates and bars get rebuilt and bedded to full bearing on their backing. That stops the point contact that distorts a plate within a single shift.

Draft fans take the same beating from the other direction. Particle-laden gas erodes fan blade leading edges, tips, and deflectors. Airflow drops, and the rotor unbalances over a campaign. We rebuild the eroded edges and overcoat them with an erosion-resistant ceramic layer. The aerodynamic profile comes back with no heat stress on the blade root and no rebalancing for weld distortion.

When a bore wears or a base loses contact, the whole drive train pays for it. Worn bearing bores, fretted bushing seats, and vibration-loosened housings shift the rotating axis and shorten coupling and seal life. AAS rebuilds bearing bores and retainer surfaces, then re-chocks the housing back to alignment. The bearing seats to spec without sending the part out for OEM shop rework. Glazed, worn, or torn drive and feed rollers lose grip and start mistracking. We resurface them cold with a high-grip elastomer that restores the friction profile and puts the roller straight back into the drive.

Crane rails and wear plates fail where steel shims leave point contact. Under heavy wheel loads, that point contact fatigues the rail and the supporting structure. AAS pours a cold-cure chocking compound that beds the rail across its full contact area and absorbs shock. The track carries heavy-lift loads without anyone machining the host structure. Conveyor belts that gouge, rip, or wear through their top covers get rebuilt cold with a flexible elastomer that bonds to the existing rubber. The line returns to service with no splice and no full belt replacement.

Mill atmosphere strips paint and galvanizing from beams, handrails, supports, and skids. Corrosion takes hold at the edges and welds first. AAS blast-cleans the steel and applies a zinc-rich barrier coating. The structure stays in service while the recoat interval stretches out. Every repair on the list above is cold-applied and cures in place, which is the whole point. No hot-work permit, no heat-affected zone, no torn-out section waiting on a fabricator.

The outcome for a Louisiana steel producer is a shorter outage and a longer run between them. Equipment comes back on its design dimension and its rated profile inside the window already on the schedule. When something fails between shutdowns, the on-call crew is in the field that day. A strong safety record built over decades says the work gets done safely the first time.