EST. 1988
YEARS OF EXPERIENCE
CONFINED SPACE
CERTIFIED TECHNICIANS
ISO 9001
CERTIFIED COMPANY
INDUSTRIAL SULFURIC ACIDE TANK REPAIR FOR CHEMICAL RESISTANCE
Storing sulfuric acid presents unique and extreme challenges. The chemical's corrosivity varies drastically depending on its concentration and temperature. Water ingress from improper venting or environmental exposure can dilute concentrated acid, triggering an exothermic reaction and rapidly accelerating corrosion rates.
Over time, these harsh conditions lead to severe wall loss, liner or coating breakdown, sludge accumulation at the tank bottom, and critical stress at nozzles and flanges. Without intervention, these issues escalate from localized pitting to catastrophic containment failure.
Plastech Services provides engineered repair, relining, and structural reinforcement solutions designed to combat corrosion, address water ingress damage, and seal compromised fittings on existing chemical storage tanks.
RESTORE SULFURIC ACID TANKS TO THEIR INTENDED OPERATING CONDITION
When a sulfuric acid tank begins to fail, the entire facility is put at risk. Plastech’s primary goal is to evaluate the tank and restore it to its intended operating condition when repair or relining is safe, practical, and fully compatible with the tank’s material, acid concentration, and service environment.
COMMON SULFURIC ACIDE TANK FAILURE POINTS
Identifying the exact mode of degradation is the first step in engineering a proper repair. We offer tank repair, tank relines, and tank modifications for sulfuric acid tank failures.
01. CORROSION AND WALL LOSS
Thinning of the tank structure due to chemical attack, incorrect concentration, or temperature
02. LINER OR COATING BREAKDO
Blistering, peeling, or cracking of internal protective layers exposing the substrate.
03. CORROSION BARRIER FAILURE
Degradation of the primary chemical resistance layer in FRP tanks.
04. NOZZLE & FLANGE LEAKS
Seepage caused by vibration, piping loads, gasket failure, or corrosion at connections.
07. SLUDGE AND SEDIMENT DAMAGE
Accumulation of heavy byproducts causing localized bottom corrosion and flow issues.
05. VENT AND FITTING ISSUES
Blockages or damage to desiccant vents and critical openings.
08. WATER INGRESS & CONTAINMENT DMANGE
Moisture entry reducing acid concentration and drastically increasing corrosivity.
06. MANWAY LEAKS
Warped covers, stripped bolts, or corroded sealing surfaces.
09. SECONDARY CONTAINMENT DAMAGE
Failures in surrounding basins, dikes, or interstitial spaces.
SULFURIC ACID TANK:
REPAIR VS. REPLACEMENT VS. REPLACE
Evaluating the most practical and safe path forward based on typical tank conditions.
OUR SULFURIC ACID
TANK REPAIR PROCESS
A strict, 8-step industrial methodology.
SULFURIC ACID TANK CONDITIONS AFFECT TANK LIFE
Select a risk factor below to understand its impact on tank integrity.
READY TO SCHEDULE YOUR FIBERGLASS SERVICE?
Connect directly with our technical management team. Provide details about your project and facility requirements, and we will expedite a project review.
Rapid response for critical infrastructure.
Comprehensive project scope assessments.
Industry-leading safety compliance.
OUR CUSTOMER REVIEWS FOR INDUSTRIAL SERVICES
STANDARDS-AWARE FOR SULFURIC ACID TANKS
Depending on the tank type, material, acid concentration and service environment, relevant references may include:
NACE SP0294 for concentrated fresh and process sulfuric acid and oleum storage tank systems
ASME RTP-1 for reinforced thermoset plastic corrosion-resistant equipment
ASTM D5421 for fiberglass flanges used in pipe systems and tank nozzles
API 653 for applicable steel aboveground storage tank inspection, repair, alteration and reconstruction
ASTM D3299 & D4097 for filament-wound and contact-molded FRP corrosion-resistant tanks
SDS guidance, manufacturer requirements and site-specific maintenance standards
INDUSTRIES WE SERVE
Inspection support for FRP tanks exposed to acids, caustics, solvents, and corrosive process environments.
Inspection of fiberglass tanks used in treatment, storage, chemical feed, and utility systems.
Tank inspection for wastewater, municipal, industrial, and corrosive service environments.
Inspection support for fiberglass and composite tanks used in demanding process areas.
FRP tank inspection for above-ground and underground storage applications.
When damage is found, Plastech can help determine whether repair, reline, modification, or replacement should be considered.
SULFURIC ACID TANK FAQS
Common questions regarding our capabilities, protocols, and timelines.
DOES PLASTECH MANUFACTURE SULFURIC ACID TANKS?
No. Plastech Services does not manufacture, sell, distribute, or supply new sulfuric acid tanks. We repair, reline, modify, inspect and restore existing sulfuric acid storage tanks for industrial and heavy commercial facilities.
CAN SULFURIC ACID TANK BE REPAIRED?
Yes, many sulfuric acid tanks can be repaired when damage is localized and the tank remains suitable for continued service. The recommendation depends on tank material, acid concentration, temperature, corrosion, lining condition, nozzles, flanges, and overall structural condition.
WHEN SHOULD A SULFURIC ACID TANK BE RELINED?
Relining may be appropriate when the interior lining, coating, or corrosion barrier has deteriorated but the tank remains structurally suitable for continued service. A reline may help restore chemical resistance and extend the service life of the existing tank.
WHAT CAUSES SULFURIC ACID TANKS TO FAIL?
Common causes include corrosion, acid dilution, water ingress, heat, sludge accumulation, liner failure, coating breakdown, nozzle leaks, flange leaks, venting problems, previous repair failure, material incompatibility and age.
CAN PLASTECH REPAIR SULFURIC ACID TANKS NOZZLES AND FLANGES?
Yes. Plastech can evaluate and repair leaking or damaged nozzles, flanges, vents, drains, manways, fittings and piping connection points on compatible sulfuric acid tank systems.
DOES PLASTECH CLEAN SULFURIC ACID TANKS?
Plastech may support tank repair and reline preparation after proper isolation, cleaning, neutralization and safety procedures are addressed by the facility or qualified service providers. Tank cleaning requirements should be reviewed before repair planning.
IS REPAIRING OR RELINING BETTER THAN REPLACING?
Repair or relining may be more cost-effective when the tank is a good candidate. Replacement should be evaluated when there is severe corrosion, structural deformation, widespread incompatibility, recurring failure or major wall loss.
CAN PLASTECH RESTORE A SULFURIC TANK TO IT'S ORGINAL OPERATING CONDITION?
When the tank is a suitable candidate, Plastech can repair or reline the tank to help restore it to its intended operating condition. The final recommendation depends on tank material, acid concentration, damage severity, structural condition and site requirements.