What is the Graphite Thermal Sheet
GALLOP INNOTEK graphite thermal sheet is a high-performance thermal conductivity and heat dissipation material with graphite as the main material. It can conduct and diffuse heat efficiently and is mainly used for thermal management of electronic devices.
Graphite Thermal Sheet Properties
High Thermal Conductivity: GALLOP INNOTEK graphite thermal sheet has strong thermal conductivity. It conducts heat uniformly in both directions, avoiding localized overheating while dissipating heat.
High Temperature Resistance: GALLOP INNOTEK graphite thermal sheet is mainly composed of carbon. GALLOP INNOTEK graphite thermal sheet is mainly composed of carbon, which maintains stable performance at high temperatures and is not easily oxidized.
Light and thin: GALLOP INNOTEK graphite thermal sheet is very light in weight and will not burden your equipment with weight. And it is usually thin enough to be used in tight crevices.
Flexible: GALLOP INNOTEK graphite thermal sheet is soft enough to conform to irregular device surfaces and is easy to cut and install.
Conductive: GALLOP INNOTEK graphite thermal sheet is electrically conductive, so you will need to consider insulating it during use.
- Superior thermal conductivity in plane: 480W/m.K
- Lightweight and ultra-thin
- Flexible and easy to be cut or trimmed
- Low thermal resistance
- EMI Shielding
- Long-life and high temperature endurable
- Low repulsion and good conformability with surfaces when lamination
- Siloxane free for silicone sensitive applications
- RoHS / UL94 V0 compliant
- Superior thermal conductivity in plane: 700W/m.K
- Lightweight and ultra-thin
- Flexible and easy to be cut or trimmed
- Low thermal resistance
- EMI Shielding
- Long-life and high temperature endurable
- Low repulsion and good conformability with surfaces when lamination
- Siloxane free for silicone sensitive applications
- RoHS / UL94 V0 compliant
- Superior thermal conductivity in plane: 800W/m.K
- Lightweight and ultra-thin
- Flexible and easy to be cut or trimmed
- Low thermal resistance
- EMI Shielding
- Long-life and high temperature endurable
- Low repulsion and good conformability with surfaces when lamination
- Siloxane free for silicone sensitive applications
- RoHS / UL94 V0 compliant
How does Graphite Thermal Sheet Work？ 
GALLOP INNOTEK graphite thermal sheet is usually tightly laminated to the surface of heat-generating components (e.g., CPU, GPU, power chips, etc.). When your device is running, the GALLOP INNOTEK graphite thermal sheet quickly absorbs the heat and transfers it to itself. It can quickly spread the heat on a flat surface to a larger area and then nsfer the heat to the device’s heat sink to dissipate the heat.
Types of Graphite Thermal Sheets
Natural Graphite Sheet
GALLOP INNOTEK natural graphite sheet is derived from natural graphite ore, expanded, calendered, and pressed together. Compared to other types of graphite thermal sheets, its thermal conductivity is average and its thickness is thick. However, its cost is very low.
Synthetic Graphite Sheet
GALLOP INNOTEK synthetic graphite sheet is made by graphite synthesis at high temperature. It eliminates localized hot spots better and is lighter and thinner than natural graphite sheets. Synthetic graphite sheet is the most widely used graphite thermal sheet.
Expanded Graphite Sheet
GALLOP INNOTEK expanded graphite sheet is natural graphite expanded by acid treatment and high temperature and then compressed into sheets. Its structure is loose and porous. It has the adsorption property that natural graphite does not have. It also has strong resistance to high and low temperatures, corrosion, and radiation.
Pyrolytic Graphite Sheet
GALLOP INNOTEK’s pyrolytic graphite flakes are manufactured using chemical vapor deposition or high-temperature pyrolysis processes. It has exceptional thermal conductivity and can be made ultra-thin, so it fits snugly on a variety of surfaces. However, it is also more costly, so it is more suitable for high-end devices that require efficient heat dissipation.
Graphite Thermal Sheet Applications
Graphite Thermal Sheet for Electronic Devices
GALLOP INNOTEK graphite thermal sheet covers the CPU, GPU, and chips of mobile phones, tablets, and computers tightly to dissipate the heat of your phone and prevent localised overheating. It prevents your phone from overheating and causing performance degradation. In addition, it is thin and lightweight, making it an excellent choice for cooling wearable devices such as smartwatches.
Graphite Thermal Sheet for LED Lighting
LED chips generate heat locally when working, GALLOP INNOTEK graphite thermal sheet can quickly diffuse the heat to the metal substrate of the light body, preventing light decay and shortening of life span.
Industrial Manufacturing
GALLOP INNOTEK graphite thermal sheets serve in industrial settings such as heated platforms and hot press molds. They deliver precise temperature control and help maintain consistent product quality.
Graphite Thermal Sheet for Battery
Batteries generate heat when charging and discharging, using GALLOP INNOTEK graphite thermal sheet can quickly dissipate the heat and prolong the life of the battery. Especially for electric vehicles, GALLOP INNOTEK graphite thermal sheet not only provides heat dissipation, but also improves safety.
Graphite Sheet Cutting Yield Planner
Estimate rectangular part yield and purchase-sheet quantity for graphite thermal sheet.
Planning/reference estimate: Rectangular nesting only. In-plane orientation, reinforcement, lamination, handling margin and die-cut defects require production review.
While traditional heatsinks rely on their size and thickness to dissipate heat, Graphite Thermal Sheet is thin and light enough to be used in electronic devices where space is at a premium. It also quickly diffuses heat from point sources and achieves high in-plane thermal conductivity.
Yes, graphite can conduct electricity. To prevent short circuits in your device, make sure the graphite sheet doesn’t directly touch any live circuits. If needed, you can add an insulation layer or combine it with other non-conductive materials.
They’re actually not the same thing. Think of pyrolytic graphite sheets as the premium version—they handle heat extremely well, spreading it away quickly and evenly. These sheets are much thinner and lighter than standard graphite sheets, but they do tend to be a bit pricier. That’s why you often see them used in higher-end devices where heat management really matters.
