Glass fiber and ceramic fiber insulation materials differ in composition, properties, and applications. Glass fiber is made from glass and is known for its high tensile strength, flexibility, and resistance to moisture. It's commonly used in construction and automotive industries. Ceramic fiber, on the other hand, is made from ceramic materials and is characterized by high-temperature resistance, low thermal conductivity, and excellent chemical stability. It's often used in high-temperature industrial applications and aerospace. Additionally, ceramic fiber is generally more expensive than glass fiber due to its superior heat resistance and durability.