Seam & Joint Sealing for Bolted Tanks

Bolted tank seams typically leak when gaskets lose compression, become chemically attacked, dry out, or shift from thermal cycling and tank movement. Corrosion around bolt lines, poor surface preparation, uneven joint transitions, and coating breakdown can also create pathways for liquid migration. A proper repair starts with identifying whether the issue is gasket failure, substrate deterioration, or lining failure.

In many cases, yes. If the tank structure remains sound, AmTech can prepare the affected seam area and apply compatible sealing, taping, coating, or lining systems to restore containment. Severe corrosion, wall thinning, or failed attachment points may require steel repair first. The goal is to extend tank service life while avoiding unnecessary capital replacement whenever practical.

PLS 755 Tank Tape is used to bridge gaps, smooth uneven transitions, and create a uniform surface around seams, nozzles, penetrations, and irregular joints. Its instant-bonding adhesive helps stabilize problem areas before a compatible lining or coating is applied. In low-pressure emergency situations, it may also serve as a temporary stopgap until permanent repair work is completed.

AmTech works on steel and concrete tanks used for potable water, domestic hot water, wastewater, chemicals, petroleum products, fuels, fire suppression water, and industrial process liquids. The repair approach depends on the stored product, tank material, temperature, chemical concentration, corrosion level, and the condition of the existing lining or coating system.

Yes. Surface preparation is critical because sealants, tapes, and linings must bond to a clean and properly profiled substrate. Depending on site conditions, crews may use abrasive blasting, hydroblasting, wet blasting, or power-tool cleaning to remove rust, old coatings, contaminants, and oxides. Profile, humidity, temperature, and dew point are checked before application proceeds.

Yes. AmTech provides emergency tank repair services for active leaks, corrosion breakthrough, lining failure, nozzle blowouts, structural cracks, and other urgent containment issues. Crews can mobilize with temporary sealing materials, proprietary lining systems, and repair equipment to mitigate leakage, stabilize the affected area, and help reduce downtime while a permanent repair is completed.

AmTech selects lining systems based on the tank’s service environment. Options include DuraChem 500 series 100% solids polylinings, HydraStone and Alkrete cementitious linings, Armor Shield coatings, and AT BiFlex systems. The right system depends on whether the tank stores water, wastewater, chemicals, fuel, petroleum products, or high-temperature liquids.

Timing depends on tank size, access, cleaning requirements, corrosion severity, and the selected repair system. Emergency leak mitigation may be completed quickly to stabilize operations, while permanent repairs often require inspection, preparation, sealing, lining, and verification. Instant-cure systems such as DuraChem can significantly reduce downtime compared with traditional multi-coat materials.