3M™ Glass Cloth Tape 398FR is a flame retardant solution for many aerospace and MRO applications. It features a pressure sensitive acrylic adhesive that bonds on contact to a variety of substrates. This high adhesion bond will remain secure for extended periods of time while resisting wear and spills.
Abrasion resistance and good temperature resistance helps reduce failure due to wear
Acrylic adhesive has excellent long-aging properties ideal for many permanent applications
High conformability allows tape to bond over a variety of difficult textures and uneven or curved surfaces
Meets flame retardancy requirements of F.A.R. Part 25.853(a) and F.A.R. Part 25.855(d)
Flame Retardant Solution
Our 3M™Glass Cloth Tape 398FR is a white, glass cloth film tape with an acrylic adhesive that provides superior product performance and flame retardant properties. It features a 5.0 mil backing and a blue polyethylene film liner for ease of application. This tape is durable and has a high temperature resistance (up to 250°F/121°C). It also features good puncture resistance, high tensile strength and superior abrasion resistance. The white color ensures a clean and appealing finished product. Combined, these qualities make it is an ideal choice for use in many aerospace applications, including aircraft repair.
Sealing thermal and acoustic insulation panels where high adhesion and flame retardancy are needed
Aircraft window sealing, duct sealing and seat repair
Protection of wire harnesses, electrical cables or hoses from high temperature extremes and abrasion
Various marine applications
General industrial and MRO applications
Superior Adhesion with Acrylic
This tape features an acrylic adhesive that adheres immediately on contact to a variety of substrates. Once bonded this adhesive will provide high, secure adhesion for extended periods. This adhesive maintains adhesion in climate and temperature change variations.
Meeting Industry Demands
3M™ Glass Cloth Tape 398FR meets flame retardancy requirements of F.A.R. Part 25.853(a) and F.A.R. Part 25.855 (d); Boeing material specification BMS 5-146 Type I, Class I, Grade A; and Airbus Specification ABS 5649. It is EU compliant per directive 2003/11 EC of the European Parliament and the Council of February 6, 2003, amending Council Directive 76/769/EEC which restricts the use of penta-BDE and octa-BDE flame retardants.
Adhesion Strength (metric)
Splicing Flame-Retardant Tape
Backing Thickness (metric)
Back-Side Adhesive Thickness (metric)
Transportation, Specialty Vehicle, Construction, Automotive, Military & Government, General Industrial, Aerospace