Bolted Steel Tank Relining & Repair

Interior corrosion is commonly caused by stored liquid chemistry, moisture, sediment buildup, fluctuating pH, oxygen exposure, coating breakdown, and galvanic activity around seams, bolts, penetrations, or nozzles. In chemical, water, wastewater, and petroleum tanks, aggressive contents can attack exposed steel once the original lining fails, leading to pitting, wall thinning, leaks, and structural degradation.

Yes, many corroded bolted steel tanks can be repaired and relined if the remaining structure is suitable for restoration. AmTech evaluates corrosion depth, wall thickness, seam condition, nozzle integrity, and the stored product environment. Where needed, crews repair damaged steel before applying a compatible lining system designed to restore corrosion protection and extend service life.

The lining system depends on the tank’s service environment. AmTech uses proprietary options including DuraChem 500 series polylinings, HydraStone Alkrete cementitious linings, Armor Shield coatings, and AT BiFlex fiberglass systems. Selection is based on stored liquid, temperature, chemical concentration, abrasion exposure, regulatory needs, and whether the tank serves water, wastewater, chemical, fuel, or petroleum operations.

Preparation typically includes inspection, cleaning, removal of loose material, and surface profiling through abrasive blasting, wet blasting, hydroblasting, or mechanical tools. Crews remove rust, old coatings, oxides, contaminants, and scale to achieve the required profile. They also measure humidity, dew point, ambient temperature, and surface profile before lining application begins.

Yes. Bolted steel tanks often develop issues around seams, bolts, nozzles, welds, fittings, and pipe penetrations. AmTech can rebuild damaged attachment areas, repair corroded steel, replace or restore nozzles, and use compatible materials such as PLS 755 Tank Tape to bridge gaps and smooth irregular surfaces before the final lining is applied.

Project duration depends on tank size, access, corrosion severity, required steel repairs, environmental controls, and the selected lining system. Some instant-cure systems, such as DuraChem 500 series polylinings, can reduce downtime compared with traditional multi-coat systems. A thorough assessment allows AmTech to plan sequencing, crew needs, and return-to-service expectations.

Yes. AmTech provides emergency tank repair services for active leaks, corrosion breakthroughs, lining delamination, nozzle blowouts, structural cracks, and regulatory shutdown concerns. Crews can mobilize with repair materials, temporary mitigation options, welding equipment, and compatible lining systems to help stabilize the tank, complete repairs, and reduce operational downtime.

Interior corrosion repair and relining is used by municipal facilities, industrial plants, water and wastewater systems, petrochemical operations, oil and gas facilities, chemical processors, manufacturers, power plants, hospitality properties, institutions, and defense-related facilities. The goal is to protect steel tanks storing potable water, fire suppression water, wastewater, chemicals, fuels, petroleum products, and process liquids.