Used primarily for sealing aircraft cargo bay panels to create a permanent seal, 3M™ Glass Cloth Tape 398FR is an ideal choice for applications requiring high adhesion, an abrasion-resistant backing and flame retardant properties. This tape offers a durable, abrasion and puncture resistant glass cloth backing that is conformable for ease of installation.Used in a variety of industries, 3M Glass Cloth Tape 398FR is a strong and durable, glass-cloth backed tape designed to perform at high temperatures. This tape is used in a variety of aerospace, automotive, military, roofing, specialty vehicle, and ship building industries for seaming and sealing panels, high temperature masking, bundling, holding, and harness wrapping. It is able to withstand temperatures ranging from -65F/-54C to 450F/232C, and intermittent temperatures up to 550F/288C or higher, depending on the type and duration of the heat source. This cloth tape provides the friction needed to stay in place long periods of time.