INDEPENDENT DIELECTRICS LLCCOMPUTE MOBILITY ENERGY STORAGE

Immersion fluids + materials laboratory

Know your fluid.Trust your system.

Immersion changes what the fluid has to prove.

INDIChemistry—known simply as INDI—is an independent commercial laboratory for dielectric fluids, fluid-contact materials, components, and liquid-immersed systems.

From data centers and edge compute to electric mobility, off-highway machinery, marine and aviation power, BESS, and emerging immersed systems, INDI turns fluid data into evidence for qualification, continued functionality, and predictive maintenance.

IMMERSION QUALIFICATION ENVELOPE one fluid system
DIRECT-CONTACTDIELECTRIC FLUID
01
COMPUTEData centers · AI / HPC · edge · telecom
02
MOBILITYEV · off-highway · marine · aviation
03
ENERGYBESS · grid · microgrid · mobile power

One lab language for fluid suppliers, system developers, OEMs, operators, and the specialists working between them.

20 & 40 GHzFlagship controlled-temperature service
Independent third partyVendor-neutral project work
Fluid + material + functionEvidence framed around real systems
St. Louis, MissouriCommercial projects and partnerships

Flagship commercial capability

High-frequency dielectric data for immersion fluids.

At high-speed interfaces, the dielectric behavior of the fluid is part of the signal environment. INDI measures relative permittivity and dielectric loss at 20 and 40 GHz under controlled temperature conditions.

The four-point package provides difficult-to-source input data for fluid selection, system modeling, qualification, and supplier comparison. Reports document conditioning, test conditions, data, method status, and limitations so engineers can use the results in context.

Discuss 20 / 40 GHz testing

Standard four-point package

OCP-aligned data support
20 GHz20°C and 70°C
40 GHz20°C and 70°C
εrRelative permittivity
tan δDielectric loss tangent
  • Documented sample conditioning and stabilization
  • Replicate measurements and scope-appropriate review
  • Single-point screens and custom temperature matrices
  • Data packages mapped to published OCP requirements

Where immersion is going

More than cooling. An electrical architecture.

When dielectric fluid makes direct contact with the electrical system, fluid chemistry becomes a design, reliability, and operating decision.

INDI helps translate that decision across three fast-moving commercial worlds while respecting their distinct duty cycles and evidence requirements.

01COMPUTE

Data centers and edge

Fluid data for high-density compute, AI and HPC infrastructure, edge deployments, telecom equipment, and the power electronics that keep them running.

AI / HPCDATA CENTERSEDGETELECOM
02MOBILITY

Transportation and machines

Qualification thinking for immersed battery packs and power systems exposed to high loads, vibration, temperature swings, compact packaging, and punishing duty cycles.

EVCOMMERCIALAG + MININGMARINEAVIATION
03ENERGY

BESS and resilient power

Fluid, material, and condition programs for stationary or mobile storage where thermal uniformity, electrical insulation, service life, and safety all intersect.

BESSGRIDMICROGRIDUPSMOBILE POWER
BEYOND THE THREE COLUMNS

Power electronics, charging systems, industrial drives, robotics, research platforms, and specialty electrification: if the hardware lives in dielectric fluid, bring us the question.

One fluid. Many jobs.

The coolant is doing more than carrying heat.

Direct contact makes the fluid part of every electrical, thermal, material, functional, and maintenance interface. A useful test program evaluates the fluid in the context of the immersed system.

01INSULATE

Electrical behavior

Permittivity, loss, breakdown behavior, moisture sensitivity, and the conditions that make the data meaningful.

02TRANSFER

Thermal duty

Viscosity, flow-relevant properties, temperature exposure, and how the fluid supports heat removal over the operating range.

03COEXIST

Compatibility + function

Material change across elastomers, polymers, coatings, and metals—paired with post-exposure checks of component and system functionality.

04ENDURE

Aging + predictive insight

Baseline quality, controlled aging, oxidation, contamination, and in-service trends that support condition assessment and predictive maintenance.

Three ways to work with INDI

Characterize. Qualify. Predict.

Start with the decision the data must support, then build a defensible program around the exact fluid, materials, hardware, duty cycle, and failure mode. Baselines and recurring data create the path to predictive maintenance.

01

Characterize the fluid

Measure decision-relevant properties, compare candidates or aged samples, and build a technical data package around the application and operating conditions.

See the flagship capability
02

Qualify the immersed system

Evaluate the exact fluid, fluid-contact materials, components, and assemblies under project-specific conditions. Track material change and continued function against agreed acceptance criteria.

Plan a qualification program
03

Build toward predictive maintenance

Establish a commissioning baseline, identify useful condition markers, trend fluid and system change, and turn recurring data into earlier, better-targeted maintenance decisions.

Design a predictive program

Different platforms. Shared discipline.

Three operating realities. One shared testing discipline.

The fluid is common. Each market brings its own stresses, evidence needs, and acceptance decisions.

COMPUTE

Density, signal behavior, uptime.

High heat flux, fast electrical environments, mixed materials, continuous duty, and serviceability at scale.

MOBILITY

Power, vibration, harsh duty.

Rapid load change, fast charging, seals and connectors, mechanical exposure, packaging, and extreme temperatures.

ENERGY

Safety, aging, long service.

Cell-to-fluid interfaces, thermal stability, contamination, condition trends, maintainability, and life-cycle confidence.

Founder-led by design

A focused laboratory on purpose.

Projects are scoped directly with the person designing and reviewing the work.

Independent Dielectrics was founded by chemical engineer Joshua Garner after more than a decade working with dielectric fluids, laboratory testing, transformer diagnostics, high-voltage equipment, and emerging immersion applications.

That background matters because fluid data is only useful in context. INDI brings the hard-earned discipline of mature dielectric-fluid testing to new immersed systems and adapts it to the decisions each application must support.

Start with the system

Tell us what is immersed—and what the data needs to prove.

Share the fluid, material, component, operating condition, or decision you are working through. We’ll shape the program around the system, the evidence you need, and how the results will be used.

Discuss a test program