THERMAL-XR Heatsink
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Thermal Management of Electronics – Miniaturisation of Heatsinks Through Enhanced Heat Dissipation

THERMAL MANAGEMENT CHALLENGE PRINTED CIRCUIT BOARDS
Electronic components like processors and LEDs generate heat during operation, often leading to PCB heating due to high component density, resistive heating, and poor airflow. Effective thermal management is crucial to maintain performance and prevent damage.
Large heatsinks are often used to dissipate heat but come with challenges like mechanical stress, space constraints, and airflow blockage. Poor installation can further reduce efficiency and increase costs, making proper thermal solutions essential for reliable performance.
THERMAL SOLUTION FOR HEATSINK MINIATURISATION
With GMG’s THERMAL-XR® coated on the aluminium or copper heatsinks, the heatsink heat transfer coefficent can be increased and the heatsinks can be reduced in size by up to 39% while maintaining the same temperature performance for electronics. This significant size reduction translates to substantial savings in both weight and aluminium costs, achieved with minimal coating.


MINIATURISATION OF HEATSINK WITH THERMAL-XR®?
THERMAL-XR® is a direct-to-metal, water-based acrylic-epoxy coating with heat conductivity powered by GMG Graphene. This innovative solution revolutionizes heat transfer and dissipation, making it ideal for aluminium and copper heatsinks in electronic and electrical assemblies. By improving heat dissipation efficiency, THERMAL-XR® supports heatsink Miniaturisation and enhances overall performance.

HEAT TRANSFER COEFFICIENT
Graphene Manufacturing Group supports electronic designers in optimising thermal management, helping keep devices cooler or enabling heatsink miniaturisation while maintaining similar temperatures. Thermal XR®’s heat transfer coefficient charts are available, detailing performance based on heatsink surface temperature and airflow speed..
ANTI-TARNISH AND CORROSION PROTECTION
With external party laboratory verification, THERMAL XR® demonstrates exceptional durability and performance, achieving:
- ASTM B117 Salt-Spray Test: Exceeding 15,000 hours.
- ASTM G85 A1 Acid Salt-Spray Test: Exceeding 3,000 hours.
- Operational Tolerance from -100oC to 500oC
THERMAL-XR® is engineered to provide superior anti-tarnish and corrosion protection, ensuring reliable performance of heatsinks even in hot and corrosive environments.
APPLICATION PROCESS

GMG is a clean-technology focused company which aims to offer energy-saving products and solutions and energy storage products, enabled by Graphene manufactured in-house via a proprietary production process.
GMG developed and proved its proprietary production process to produce GMG Graphene. This process produces high quality, low input costs, scalable, tuneable and low contaminant Graphene suitable for use in clean-technology applications. GMG’s focus has been developing applications for ENERGY SAVING AND ENERGY STORAGE SOLUTIONS
