Critical spares and warehouse preservation
Inventory surveys, condition grading, rust recovery, packaging upgrades, VpCI films, emitters, desiccants where appropriate, and clear inspection routines for stored parts.
Cortec VpCI preservation technology
Preservation & Lay-Up (VpCI Systems)
JST applies Cortec Corporation VpCI, MCI, and CorroLogic technologies to protect critical spares, tanks, pipelines, packaged equipment, power assets, and offshore infrastructure before corrosion becomes an operating problem.
Why preservation matters
Protect asset condition before commissioning, during shutdown, and throughout long-term storage
Corrosion often starts before an asset enters service. Equipment can deteriorate during fabrication, project delay, outdoor laydown, overseas shipment, shutdown, mothballing, and warehouse storage.
As a Cortec partner, JST builds preservation programs around practical site conditions: humidity, sea freight, inspection access, electrical enclosures, rotating equipment, tank bottoms, pipeline casings, and the critical spares that must work immediately when they are needed.
The objective is not only to delay deterioration. A good preservation program keeps assets clean, inspectable, documented, and ready for safe commissioning or return to service.
- Cortec VpCI, MCI, and CorroLogic product support
- Preservation methods for enclosed spaces, spares, tanks, packaging, and lay-up
- Tank bottom, cased crossing, and hard-to-access corrosion protection options
- JST field teams for preparation, application, inspection, and reporting
Cost of corrosion
Cortec preservation methods help reduce repair, replacement, rework, project delay, and unplanned downtime by protecting assets during the periods when they are usually most exposed and least monitored.
$2.5T
Estimated global corrosion cost
The brochure cites global corrosion costs at approximately 3.4% of GDP, with indirect costs potentially doubling the impact.
15-35%
Preventable through management
A meaningful share of corrosion cost can be avoided with planned corrosion management and preservation practices.
$200K-$600K/hr
Oil and gas downtime exposure
Unplanned downtime can become extremely costly when unavailable spares delay return to service.
10%+
Extra spares often forecast
Greenfield projects may carry extra spares to compensate for uncertainty and poor preservation control.
How VpCI works
Vapor phase corrosion inhibitors reach surfaces that are difficult to coat directly
VpCI molecules vaporize, migrate, and adsorb onto metal surfaces inside packages, voids, enclosures, casings, tanks, and complex equipment geometry.
The corrosion triangle
Corrosion needs metal, oxygen, and an electrolyte. VpCI technology helps interrupt this process by creating a molecular barrier on metal surfaces and reducing the conditions needed for corrosion to continue.
Metal
Oxygen
Electrolyte
01
Release
VpCI products release corrosion-inhibiting molecules into the enclosed or semi-enclosed space around the asset.
02
Migrate
The vapor phase moves across complex shapes, voids, internal cavities, electrical boxes, packaged equipment, and hard-to-access surfaces.
03
Protect
The inhibitor adsorbs onto metal surfaces, helping interrupt corrosion without requiring direct coating of every internal surface.
Full asset lifecycle
Preservation should be part of the project preservation basis, not a last-minute packaging step
The strongest preservation programs are planned from FEED and procurement through storage, shipment, construction, commissioning, and long-term critical-spares management.
Talk to a preservation specialistFEED and preservation basis
Define corrosion risks, storage periods, transport routes, inspection access, responsible parties, and acceptable preservation methods early in the project.
OEM procurement and packaging
Specify VpCI films, emitters, oils, fogging fluids, powders, temporary coatings, and documentation before equipment leaves the manufacturer.
Construction and laydown yards
Protect equipment exposed to outdoor weather, dust, salt air, and project delay during stick-built or modular construction.
Overseas shipment
Protect modules, spares, and packaged equipment exposed to salt air and water during weeks or months of transport and customs handling.
Pre-commissioning and startup
Keep internals and critical equipment protected until systems are ready for cleaning, inspection, installation, and controlled startup.
Critical spares warehouse
Preserve standby parts so they pass condition checks and remain ready for outage, shutdown, and emergency use.
Preservation checklist
What a practical VpCI preservation plan should cover
The checklist below turns the brochure guidance into work packages that can be specified, inspected, and maintained on real sites.
Internal voids and cavities
- Hydrotest or flush with suitable VpCI chemistry where process conditions allow.
- Fog static internals such as vessels, pipes, casings, and hollow sections when access is limited.
- Use compatible VpCI additives or fogging fluids for rotating internals such as compressors, gearboxes, and turbines.
Electrical and electronics
- Size VpCI emitters to the enclosure volume and exposure duration.
- Use electrical contact protection only with correct isolation and compatibility checks.
- Label panels and create inspection intervals so emitters are replaced before expiry.
Temporary surface protection
- Apply removable waxlike or wet-film protection to exposed machined surfaces, shafts, flanges, and fittings.
- Choose products that can be removed or commissioned without damaging the asset.
- Combine surface protection with inspection records and preservation status tags.
Packaging and weather exposure
- Use VpCI bags and films for indoor storage and controlled packaging.
- Use UV-stable shrink film or heavy-duty VpCI shrink film for outdoor exposure.
- Add resealable access doors where inspection is needed during preservation.
Recover and preserve
Rust removal should end with a preservation decision, not simply a cleaned part
The brochure outlines a structured clean, protect, preserve workflow for corroded spares and components. JST can adapt this into a practical warehouse or shutdown recovery program.
01
Set up controlled stations for rust removal, rinse water, and alkaline neutralization.
02
Clean and degrease the part before treating corrosion products.
03
Immerse or treat the part with the appropriate Cortec rust remover.
04
Rinse residual remover and loosened corrosion products at defined inspection points.
05
Neutralize and inhibit flash rust before the part is dried.
06
Preserve the recovered part with films, emitters, fogging fluids, coatings, or grease as appropriate.
Preservation systems
Where JST applies Cortec preservation technology
A complete program may combine VpCI packaging, films, emitters, fogging, temporary coatings, rust removal, tank-bottom protection, inspection access, and preservation records.
Equipment lay-up, shutdown, and transport
Temporary preservation for turbines, generators, gearboxes, engines, terminal boxes, valves, pipe spools, pressure vessels, and packaged equipment.
Electrical cabinets and terminal boxes
Emitter-based and contact-protection methods for control panels, junction boxes, terminal boxes, and sensitive electrical compartments during storage and delay.
AST tank bottoms and pipeline casings
CorroLogic and VpCI-based approaches for areas that are difficult to inspect, coat, or protect through conventional direct-contact methods.
Structural, offshore, and modular assets
Preservation support for modules, offshore structures, fabrication yards, construction laydown areas, exposed steel, and reinforced concrete assets using VpCI and MCI technologies.
Power generation and heavy industrial assets
Preservation support for turbines, generators, control cabinets, heat exchangers, boilers, transformers, and standby equipment during outage, storage, or mothballing.
CorroLogic and tank-bottom protection
Protection for tank bottoms, cased crossings, and spaces where inspection is limited
Cortec CorroLogic and VpCI systems are designed for corrosion risks in areas that cannot be easily coated, cleaned, powered, or inspected. JST can integrate these methods with corrosion engineering, cathodic protection, inspection planning, and repair strategy.
- VpCI can migrate into hard-to-reach spaces and recessed areas that are difficult to protect by direct coating.
- Systems can work alongside cathodic protection as a complementary protection layer or contingency where CP performance is limited.
- AST programs can be considered for new construction, in-service tanks, and out-of-service maintenance windows.
- Pipeline casing applications can reduce exposure to water, oxygen, debris, coating disbondment, and annular-space corrosion risk.
AST out-of-service protection
Cortec video reference for tank-bottom protection during outage, inspection, or maintenance access.
Open on YouTubeAST in-service protection
Cortec video reference for corrosion control options while tanks remain in operation.
Open on YouTubeAST new construction protection
Cortec video reference for building tank-bottom protection into new tank construction.
Open on YouTubeField-proven preservation programs
How Cortec VpCI systems solve practical preservation problems
These use cases reflect the types of assets, risks, and preservation decisions JST can help customers assess and implement.
Precision components, tooling, and gauges
VpCI wipes, papers, bags, and emitters can protect precision parts during storage and transport while reducing heavy rust-preventative cleanup before commissioning.
Terminal boxes and electrical enclosures
VpCI emitters, contact sprays, and shrink films can protect sensitive electrical components during storage, shipment, and project delay.
Turbomachinery and rotating equipment
Temporary preservation reduces corrosion risk before installation, during outage, or while turbines, generators, compressors, and gearboxes are held as spares.
Pipeline crossings and casing spaces
VpCI methods can help protect annular spaces, recessed surfaces, and buried interfaces where inspection and conventional coating access are limited.
Aboveground storage tank bottoms
CorroLogic systems can support tank-bottom corrosion control for new, in-service, and out-of-service AST preservation strategies.
Power plant lay-up and standby equipment
VpCI fogging and lay-up methods can provide an alternative to more complex preservation methods for boilers, turbines, generators, and power equipment waiting for service.
Connected JST capabilities
Build preservation into a complete corrosion-control strategy
Preservation is strongest when product selection, engineering basis, coating condition, CP performance, inspection access, and handover documentation are treated as one program.
Chemical Solutions
Chemical treatment and Cortec VpCI product selection for preservation, lay-up, packaging, and corrosion mitigation.
Learn moreCorrosion Engineering
Risk studies, preservation basis, material review, specifications, and corrosion-control strategy.
Learn moreCathodic Protection
Cathodic protection design, survey, and troubleshooting for buried, submerged, and tank-bottom assets.
Learn moreCorrosion Monitoring
Monitoring, inspection, verification, and data interpretation to confirm protection is performing.
Learn moreCoating Services
Protective wrapping, coating, repair, and surface preparation for exposed assets.
Learn moreSurvey & Inspections
Survey and inspection support for asset condition checks, preservation hold points, and project handover.
Learn moreIndustries We Serve This In
Need to preserve equipment before it enters service?
JST can review your asset type, storage period, transport route, inspection requirements, and operating environment to recommend a practical preservation plan.