Expandable graphite is widely used in flame retardant applications due to its ability to expand when exposed to heat, forming a protective char layer that insulates and prevents the spread of fire. It is commonly incorporated into materials like plastics, rubber, and coatings to enhance their fire resistance. In the construction industry, it is used in fireproof seals, gaskets, and insulation materials. Additionally, expandable graphite is employed in the production of intumescent paints and coatings, which swell under high temperatures to provide fire protection for structural elements. It is also utilized in battery technology, particularly in lithium-ion batteries, where it serves as an anode material due to its excellent conductivity and stability. Furthermore, its thermal and electrical properties make it suitable for use in thermal management systems and as a lubricant in high-temperature environments.

In environmental applications, expandable graphite serves as an absorbent material for managing oil spills, effectively absorbing oil while being easily separated from water. In the automotive industry, it is used as a component in composite materials to reduce weight and increase the strength of vehicle parts, promoting energy efficiency and lower emissions. In petrochemical applications, it functions as a thermal seal and high-efficiency lubricant.