Heat management is one of the most critical aspects in the design of high-performance LED lighting systems. In this context, the use of thermally conductive polymeric materials allows for matching the performance of traditional metal solutions, offering advantages in terms of design, weight, and sustainability.
The collaboration between LATI and Whitecroft Lighting demonstrates how the use of thermally conductive compounds can enable a functional redesign of heat sinks, maintaining high performance while reducing environmental impact.
Thermally conductive materials for LEDs: the Whitecroft Lighting case study
LATICONTHER thermally conductive compounds are used for molding the heat sink housings of Mirage downlights produced by the British company Whitecroft Lighting.
The collaboration between LATI and Whitecroft dates back to 2020, when FEM analysis and experimental tests allowed for a careful design review of the lighting systems, leading to the adoption of thermally conductive plastic materials to redesign solutions traditionally made of metal.
[Discover the material chosen by Whitecroft Lighting]
Thermal conductivity and performance in COB LED systems
The thermal conductivity guaranteed by the high graphite content of LATI compounds allows for the safe management of the performance and operational life of the most powerful COB LED assemblies.
The excellent heat flow management capabilities, also achieved thanks to the geometry of the Mirage lamps made of LATICONTHER 62 GR/50, have allowed their use even in particularly challenging environments.
Metal replacement: advantages in terms of design and sustainability
Replacing metal with polymeric materials represents a significant change in heat sink design.
From an environmental perspective, this approach allows for reducing the carbon footprint of the finished product. Thanks to the lower global warming potential of the compound and its reduced weight, CO₂ equivalent emissions per functional unit are lower than those of aluminum, even in the case of recycled die-cast metal.
[The perfect plastic material for heat dissipation is here]
Chemical recycling compounds: LATICONTHER 62 CR GR/50
To further strengthen this sustainable approach, Whitecroft decided to replace the LATICONTHER 62 GR/50 made with fossil-based PA6 with the equivalent LATICONTHER 62 CR GR/50.
This material is characterized by a polymer matrix consisting entirely of PA6 obtained through the chemical recycling of post-consumer and post-industrial plastic waste.
[Download the LATICONTHER 62 CR GR/50 technical data sheet]
Technical performance equivalent to traditional materials
LATICONTHER 62 CR GR/50 maintains identical performance to traditional compounds in terms of:
- thermal properties
- mechanical properties
- dimensional stability
The material is also suitable for all major injection molding technologies and various geometric designs for the component.
Carbon footprint reduction in thermally conductive materials
The transition from fossil-based compounds to solutions with recycled polymers allows for a significant reduction in global warming potential (GWP).
GWP values drop from approximately 6–6.5 kgCO₂eq/kg for the fossil-based PA6 solution to levels below 4 kgCO₂eq/kg, highlighting the concrete contribution of materials to product decarbonization.
Technical lighting: integrated performance and sustainability
Whitecroft’s Mirage line represents a concrete example of integration between:
- high thermal performance
- design innovation
- environmental sustainability
The adoption of thermally conductive plastic heat sinks demonstrates how it is possible to combine efficiency, durability, and reduced environmental impact within high-performance lighting applications.
Thermally conductive materials for LEDs
What are thermally conductive polymeric materials?
They are filled plastic compounds (e.g., with graphite) capable of dissipating heat, used as an alternative to metals in electronic and LED systems.
Is it possible to replace aluminum in LED heat sinks?
Yes, thermally conductive materials allow for the replacement of aluminum while ensuring adequate thermal performance and greater design freedom.
What advantages do they offer compared to metal?
Weight reduction, greater design freedom, functional integration, and lower environmental impact.
Do recycled materials maintain performance?
Yes, compounds such as those from chemical recycling can guarantee properties equivalent to virgin materials.
In which applications are they used?
LED lighting, power electronics, automotive, and high-power density electrical systems.
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