Polyurea & polyurethane lining for bolted steel tanks

Polyurea and polyurethane lining is a fast-curing protective barrier applied to the interior of a bolted steel tank. It bonds to properly prepared steel and creates a seamless, corrosion-resistant surface that isolates the tank wall from stored liquids. AmTech uses poly lining systems where chemical resistance, rapid return to service, and long-term containment protection are priorities.

Bolted steel tanks have panel seams, fasteners, penetrations, nozzles, and irregular transitions that can become weak points if they are not detailed correctly. Successful lining requires thorough cleaning, proper surface profile, seam bridging, and compatible materials at every joint. AmTech addresses these areas before spraying the lining so the finished barrier performs as a continuous containment system.

Project duration depends on tank size, access, corrosion level, repair needs, and required surface preparation. The lining itself cures very quickly, often reducing downtime compared with traditional multi-coat epoxy or vinyl ester systems. Most time is spent on inspection, cleaning, steel repair, blasting, seam detailing, quality checks, and safe return-to-service procedures.

Yes, properly specified poly lining systems can protect tanks exposed to wastewater, treatment chemicals, acids, alkalis, petroleum products, and industrial process liquids. AmTech reviews stored substances, concentrations, operating temperatures, fill and draw cycles, and prior lining failures before selecting a system such as the DuraChem 500 series for the specific service environment.

The tank must be cleaned and prepared to remove rust, mill scale, old coatings, oxides, and contaminants. Depending on the project, AmTech may use dry abrasive blasting, wet abrasive blasting, hydroblasting, or power-tool profiling. Crews verify surface profile, ambient temperature, dew point, and humidity before application to support proper adhesion and long-term performance.

Yes. If inspection reveals pitting, wall thinning, perforations, nozzle degradation, or tank bottom damage, AmTech can perform steel repairs before lining. Work may include cutting out compromised sections, welding in new steel plate, rebuilding nozzle areas, and preparing repaired surfaces. Structural repairs are performed with attention to applicable standards such as API 653.

They can significantly reduce downtime because many poly lining systems are 100% solids and cure rapidly after application. Unlike traditional coatings that may require multiple coats and extended cure windows, spray-applied poly systems can build a thick monolithic barrier quickly. AmTech’s planning, surface preparation, and field application process is designed to restore tank operation efficiently.

AmTech Tank Lining & Repair deploys experienced field crews across all 50 U.S. states, Canada, and the Caribbean. The company serves industrial facilities, municipal utilities, water and wastewater operations, chemical processing plants, oil and gas sites, commercial properties, and institutional facilities that need tank lining, repair, corrosion protection, or emergency response.