Solutions · Data Centers

EnigMAT PCM Blankets: the passive thermal batteryfor data centers

Cooling accounts for 30–50% of a data center's total energy consumption. As high-density server heat and AI workloads push infrastructure to its limit, facilities need a smarter way to manage thermal loads.

EnigMat phase-change material (PCM) blankets are a zero-energy, maintenance-free, retrofit-friendly solution. By turning your facility into a passive thermal buffer, EnigMat reduces mechanical cooling runtime, cuts peak demand charges, and protects critical equipment — delivering potential HVAC energy savings of 20–35%.

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High-density data center racks with hot-aisle containment

Hyperscale rack containment — a prime EnigMat deployment zone

Intercept and Downgrade Heat

How EnigMat works

Unlike traditional insulation that merely slows heat flow, EnigMat blankets actively capture, store, and release heat at highly specific temperatures.

Absorb

As data hall temperatures rise, the phase-change core transitions from solid to a gel-like state, absorbing up to 100 BTUs per square foot with no corresponding rise in surface temperature.

Hold

Heat is held in the blanket instead of loading the return air stream, flattening the spikes that trigger compressor calls and equipment cycling.

Reset

When ambient temperatures drop or free-cooling periods begin, the blanket releases the stored energy and refreezes to a solid state, resetting the cycle.

Prioritized by Impact

Optimal deployment zones

EnigMat blankets can be deployed strategically across your facility, ordered here by ease of installation and overall impact.

Zone 01 · Highest Impact

Above suspended ceilings & return-air plenums

Deploy directly on top of ceiling tiles or inside the data hall plenum — the least disruptive retrofit available.

The benefit
Creates a large thermal sponge that intercepts rising hot return air before it reaches CRAC/CRAH units or chillers.
The impact
Buffers short-term heat spikes from workload surges, delays compressor calls, and reduces equipment cycling. In 24/7 environments it enables load shifting — absorbing excess heat during daytime peaks and releasing it overnight.
Zone 02

Hot-aisle containment walls & rack perimeters

Line hot-aisle enclosures or apply blankets directly to containment structures.

The benefit
Passively absorbs server exhaust heat at the source, before it overloads the room or the cooling coils.
The impact
Lowers the temperature delta the active cooling system must overcome, enabling higher supply-air set-points within ASHRAE guidelines and reducing fan and chiller power. Adds short-term thermal inertia that protects servers during brief power or cooling outages.
Zone 03

Perimeter walls & exterior envelopes

Apply to the interior faces of exterior walls or directly above roof insulation.

The benefit
Blocks solar and ambient heat gain before it penetrates the building shell.
The impact
Reduces baseline cooling demand on HVAC systems — especially valuable in warmer climates pushing for maximum facility efficiency.
Zone 04

Critical support areas

Install in battery rooms, UPS spaces, or near air handlers.

The benefit
Localized thermal buffering protects sensitive backup equipment.
The impact
Pairs with existing containment systems, free-cooling economizers, or liquid-cooling loops for hybrid efficiency.

Key advantages for critical infrastructure

Peak shaving & demand-charge avoidance

Store heat during high-load periods instead of immediately engaging high-draw chillers, lowering utility peak demand charges.

Extended equipment life

Cut HVAC mechanical runtime by 15–20%, reducing wear on compressors and fans.

Resilience with zero power

No power draw and no moving parts, with a >100-year lifespan and unlimited thermal cycles. Slows temperature rise during cooling outages.

Seamless retrofits

Lightweight, pliable, non-toxic, mold-resistant, and Class A fire-rated (ASTM E-84) — practical for live data center environments.

Specified to Your Facility

Engineering your deployment

To maximize ROI and cooling efficiency, Thermafaze works from your facility data to tune the installation before a single blanket ships.

Precision temperature tuning

Phase-change points are custom-formulated to your environment. For data centers we typically specify a melt point 2–5 °F above your target supply-air temperature, usually in the 73–84 °F range.

Optimized coverage

Based on heat density and building data, we generally recommend covering 50–100% of the ceiling area in key zones.

Universal compatibility

EnigMat enhances existing infrastructure. It works alongside raised-floor designs, hot/cold aisle containment, and advanced liquid-cooling setups without replacing them.

By using the surface area of a data hall ceiling plenum, EnigMat installs quickly with zero downtime — turning your ceiling into an active thermal battery that lowers energy costs and hardens your infrastructure against thermal events.

Ready to size an EnigMat deployment for your data hall?

Send us your ceiling area, target supply-air temperature, and rack density. We'll return a coverage recommendation and a sealed quote.

Build your data center quote (239) 318-8298