What is in-situ heat activation?

In-situ heat activation means curing a heat-activated coating where the part lives, using portable induction equipment instead of a shop oven. AEGIS uses precision magnetic induction to bring the coating substrate to cure temperature, hold it, and let the part cool in place.

Why does in-situ cure matter for fluoropolymer coatings?

PTFE, PFA, and FEP coatings need 400 to 700 degrees Fahrenheit to fuse properly. Traditional shops require parts to fit in a curing oven, which excludes any roll over about 12 feet long or any non-removable fixture. In-situ cure removes that constraint and lets AEGIS coat parts that have to stay where they are.

What size parts can AEGIS cure on site?

There is no fixed upper limit on part size for in-situ cure. AEGIS has coated and cured rolls up to 60 feet face length and structural steel sections that could not be removed from operating facilities. The constraint is access for the induction coil, not part size.

How accurate is the temperature control?

Precision magnetic induction maintains substrate temperature within plus or minus 10 degrees Fahrenheit across the cure window. We instrument the part with surface thermocouples and adjust induction power live to follow the cure profile.

Is in-situ heat cure available in the US and Canada?

AEGIS is the only commercial coating shop in the US and Canada offering precision induction in-situ cure for heat-activated industrial coatings. Service is dispatched from Elkton MD with crews available for projects across North America.

In Situ Heat Activation

Precision magnetic heat activation deployed on site, for industrial assets that cannot come to a coating workshop. Welded structural steel in service, large pump bodies and vessel components, paper machine rolls in production, and long shafts at risk of oven thermal distortion. Cured in your maintenance window using the same induction technology AEGIS runs in the workshop.

AEGIS in situ magnetic heat activation, mobile rig curing a coating onsite.

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Field deployable coatings

Why in situ cure matters

For many industrial assets, removing the equipment to send to a coating shop is the most expensive part of a coating job. Disassembly, rigging, transportation, reinstallation, and recommissioning often cost more than the coating itself, and the asset is offline for days or weeks. In situ heat activation collapses that whole chain into a single onsite cure cycle.

What AEGIS brings to your facility

Mobile precision energy surface preparation rig. The chemical bond ready surface prep that makes the coating last, delivered onsite with no hazardous waste stream.
Mobile precision magnetic heat activation. The cure technology that holds substrate dimensions and activates the coating at the right temperature, anywhere we can rig power.
AEGIS application technicians. Trained on the specific coating chemistry and substrate. The crew that cures it is the crew that applied it.
Closed loop quality verification. Coating thickness, hardness, and cure temperature documented at the asset before we leave.

Where in situ cure is the right answer

Welded structural steel in service in marine, refinery, and chemical plant atmospheres.
Permanently installed pump bodies and impellers too large or too embedded to ship economically. Shippable pump components run through our workshop on a 5 to 7 day standard turnaround.
Long rollers and shafts at risk of thermal distortion in convection oven cure. Skin only induction preserves dimensional tolerance.
Components that physically cannot fit a traditional oven. Vessel sections, oversized structural assemblies, paper machine rolls beyond 60 feet face length.
Wellhead components in production where shutdown for removal is operationally impractical.

What we need to plan a field cure job

Asset details: substrate, geometry, current condition, and current coating if any.
Service environment: chemistry, temperature, pressure, and what is currently failing.
Access constraints: power availability, work envelope, hot work permits, plant safety procedures.
Outage window: maintenance schedule and tolerable downtime.
Quality requirements: any specific NACE, ISO, FDA, or customer specific spec.

How a field cure job runs

Coating review. We spec the system and the field cure approach within one business day.
Site survey. AEGIS visits the asset, confirms access and constraints, and locks the work plan.
Mobilization. Mobile prep and cure rigs arrive on schedule with documented procedures and PPE.
Surface prep. Precision energy prep on the asset, no grit, no waste stream.
Coating application and cure. Coating applied to spec and cured in place with precision magnetic heat activation.
Verification and handover. Coating thickness, hardness, and cure documented on the asset. Job package delivered.

Frequently asked

How much downtime do I need to plan for?

For most structural and large pump body work, AEGIS field cure fits inside a normal maintenance outage. We will tell you exact required downtime when we scope the job.

Do you need the asset out of service during cure?

Usually yes for the asset being coated. Adjacent equipment can typically stay live, depending on hot work permitting at your facility.

Is the equipment certified for hazardous area work?

AEGIS field equipment can be set up for hazardous area service depending on classification. Tell us the area classification and we will spec accordingly.

How is quality documented?

Coating thickness, surface hardness, cure temperature, and visual inspection are recorded at the asset. A job package documenting all of this is delivered before we demobilize.

What if the cure fails inspection?

Cure is run under closed loop temperature control to remove the failure mode. In the rare case a touch up is required, AEGIS resolves it under the original job order at no additional cost.

Cure your coating onsite

Send us the asset and the outage window. We will spec a field cure that fits inside it.

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