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Heat-activated glass materials

A bright
idea for
shade.

Our patented materials smoothly transition from clear to reflective white as the temperature rises, with no power, sensors or controls, then switch back as it drops.

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See it in action

Clear when it’s cool.
White when it’s hot.

Our smart additives reversibly transition from transparent to reflective white to reduce solar gain in hot weather, enabling greenhouses and buildings to regulate their temperature without any electrical input. The transition temperature can be tuned between 0 °C and 45 °C to maintain optimal internal conditions across a wide range of climates and applications.

Applications

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Commercial greenhouse interior with plants under glass
Greenhouses

Protected growing,
naturally cooled

Reduces summer heat stress on crops without motorised shading or extra ventilation. Lower energy costs and more consistent yields across the season.

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Modern glass office building facade
Buildings

Facades & glazing

Reduces solar heat gain across office and residential glazing. Lower HVAC running costs, smaller peak loads, more stable interior temperatures.

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Bus interior with sunlit glazing
Transport

Vehicle glazing

Skylights that self-tint before the cabin overheats. Reduced AC load, lower fuel and energy use, improved passenger comfort.

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Solar panel array catching sunlight
Solar

Panel efficiency

Encapsulants that keep PV cells cooler at peak irradiance. Higher daily yield and slower long-term degradation.

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What makes it
different

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01 / 04
0 – 45°C range
Dial the switch point wherever you want. Works across the temperatures you actually care about.
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02 / 04
Zero energy
No wires. No sensors. No batteries. The sun does the work.
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03 / 04
Fully reversible
Goes clear when it cools down.
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04 / 04
Retrofit-ready
Applied onto glass you already own. No new frames, no tear-out.
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The Albotherm team gathered outside their lab at Future Space, Bristol
Bristol, UK

Meet the Team.

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Funded by
UK research councils
and deep-tech investors.

Make the
transition.

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