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HERGA ThermoGlass

The laminate that holds together and heats

Heated interlayer for laminated glass: it holds broken glass in place and also removes fog, dries and heats. We manufacture it; you laminate and certify.

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🔥🪟

In one minute

How it is built

A five-level sandwich between two panes. PET acts as anti-tear reinforcement; EVA as adhesive, damper and load-transfer medium.

HERGA ThermoGlass

Outer glass 4 mm
Bonding EVA 0.36 mm
EVA 0.06 mm
PET 40 µm (reinforcement)
EVA 0.06 mm
EVA 0.06 mm
PET 40 µm (reinforcement)
EVA 0.06 mm
Bonding EVA 0.36 mm
Inner glass 4 mm

Interlayer 1.04 mm · total 9.04 mm · 20.9 kg/m² · heats

Standard PVB laminate

Outer glass 4 mm
PVB 0.76 mm
Inner glass 4 mm

Interlayer 0.76 mm · total 8.76 mm · 20.8 kg/m² · no heating

Six advantages for every application

1Safety: broken glass stays in placeMore polymer (1.04 mm) and double PET retain the fragments and stop a heavy block from falling.
2Strength: stiffer and harder to tearAbout 10 % more theoretical stiffness than 0.76 mm PVB; PET resists tension far better than PVB or EVA.
3Durability: better against moisture and heatEVA absorbs less water than PVB and softens less with temperature, with sealed edges.
4Visibility: no fog, no frost, no condensationThe film heats the glass itself and keeps it dry and clear.
5Comfort: the glass heatsFrom +6 °C to +42 °C on the glass depending on use; every 10 W/m² raises the glass about 1 °C.
6No change to your plantSame weight, almost the same thickness (9.04 vs 8.76 mm) and a familiar laminating process.

Range of transparent heating films

Made to measure, from 10 × 10 cm to several m², with power matched to the use. The temperature shows how much the glass rises above ambient.

UseGlass riseTypical sizesWhat it solves
Padel+6 °CCourt panels (up to 3 m)Dry glass, held in place if broken
Shop windows and display cases+8 to +20 °C1 to several m²Creates a heat barrier at the glass: a better indoor climate and less humidity, because the glass no longer collects it in that area. No fog or condensation.
Machine cabs and workspaces+8 to +20 °CMade to measureThe glass does not fog and visibility is kept, and the heat barrier improves the indoor climate
Home windows and balcony doorsAs neededMade to measure«Closed door» system: heats only when cold and with the window closed
Bathroom windows+8 to +20 °CFrom 30 × 30 cmNo fog after a shower
Glass stairs and floorsAs neededMade to measurePrevents condensed water on the treads: programmed cycles (e.g. 20 minutes every 2 hours) that the customer adapts to the use
LED floodlights and outdoor lights+20 to +35 °CFrom 10 × 10 cmDries rain and snow faster: the light stays visible
Anti-snow, snow-clearing and deep-freezeUp to +35 °CMade to measureNo frost or snow on the glass
Special usesUp to +42 °CMade to measureTop of the range, with safety protections
Mirrors (standard anti-fog)+12 °CStandard sizesFog-free mirror, packed and ready to fit
⚠ Above +35 °C the glass can be too hot to touch: these films include a limiting thermostat and are installed out of reach.

Applications

🏬
Shop windows and display cases

Heat barrier at the glass: better indoor climate and less humidity. Always clear, and broken glass does not fall onto the street.

🚜
Machine cabs and workspaces

No fog or loss of visibility, plus a heat barrier that improves the indoor climate.

🚗
Windscreens and vehicle glass

Dry, frost-free glass that keeps the safety laminate (approval by the glass manufacturer).

🎾
Padel courts

Laminated tempered glass that holds the broken pane; a dry court, playable in cold and damp.

🪞
Bathroom mirrors

Standard anti-fog, packed and ready to fit.

🧊
Deep-freeze display cases

Always-clear doors with power matched to the cold.

💡
LED floodlights and signals

Outdoor lights always clean: snow and rain dry faster.

❄️
Snow-clearing and machinery

Visibility in the cab and more impact-resistant glass.

🏢
Façades, windows and balcony doors

Fragment retention and glass that heats only when needed.

🪜
Glass stairs and floors

No condensed water on the treads: programmed cycles (e.g. 20 minutes every 2 hours) adapted by the customer.

Technical comparison with 0.76 mm PVB

ItemThermoGlass (EVA/PET/EVA)0.76 mm PVB laminate
Interlayer1.04 mm0.76 mm
Total thickness9.04 mm8.76 mm
PET reinforcement2 × 40 µmNone
Weight20.9 kg/m²20.8 kg/m²
Max. theoretical stiffness4.30 kN·m²/m3.92 kN·m²/m
Short impactEqual or betterGood
Sustained loadKeeps its shape betterLoses effective stiffness
High temperatureSoftens lessSoftens more
Moisture at the edgeAbsorbs less (sealed edge)Hygroscopic, sensitive
Heating and anti-fogYesNo

For 1 m² with two 4 mm panes. Indicative values from a preliminary study; stiffness is the theoretical maximum.

Compared with other interlayers
To stop broken glass from detaching, ThermoGlass is in the leading group with TPU and SGP (ionoplast), at medium cost, and it is the only one that also heats. Compared with plain EVA, the double PET adds tear resistance and continuity after breakage.

Standard anti-fog for mirrors

Standard sizes, packed and ready to fit. Any other size on request.

Warranty, references and contact

🛡️ 20-year warranty on the interlayer.

🤝 References: Vitrum, Adetec, AXZ and Dubiel (Poland).

🧪 You laminate, test and certify (EN 12600, R43 for vehicles…); we support you during the tests.

HERGA ENERGY SENAL, S.L. has developed and manufactured anti-fog and film heating systems since 1992 (Antiempañantes de España). Own production in Molina de Segura (Murcia, Spain).

Request a data sheet, sample or price

We reply in your language within 1–2 working days. · info@hergaenergy.com · +34 968 603 793