Designed primarily for sealing aircraft cargo bay panels, 3M™ Glass Cloth Tape 398FRP 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.

Permanently Seal and Protect
Our 3M™ Glass Cloth Tape 398FRP has a printed liner which shows it meets industry FAR specifications. This tape features pressure sensitive acrylic adhesive that adheres to a variety of substrates. It is mounted on a blue, polyethylene, skip-slit liner for ease of application. Once bonded, this adhesive provides high, secure adhesion for extended periods in a wide range of climate and temperature conditions, including temperatures as high as 250ºF/121ºC. This tape features good puncture resistance, high tensile strength and superior abrasion resistance. 

3M™ Glass Cloth Tape 398FRP meets the flame retardant specifications of F.A.R. Part 25.853(a), F.A.R. Part 25.855(d) and MIL A-3316C 3 13.1 and 3 13.2. 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. This tape meets requirements of, and can be qualified, to Boeing material specifications BMS 5-146 Type I, Class I, Grade A.

Recommended Applications


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 temperature extremes and abrasion

• Durable backing provides abrasion and puncture resistance for long-term performance in aerospace applications
• Acrylic adhesive provides excellent long-aging properties ideal for many permanent applications
• Mounted on a printed skip slit liner for ease of application
• Meets flame retardant specifications of F.A.R. 25.853(a)? and F.A.R. 25.855(d)? and is EU Compliant
• High conformability to bond over a variety of difficult textures and uneven or curved surfaces
• Formulation does not contain antimony
• Offers good temperature resistance of -20ºF/-29ºC to 250ºF/121ºC
• Meets requirements of, and can be qualified, to Boeing material specifications BMS 5-146 Type I, Class I, Grade A

• Color: White
• Specifications: ASTM D3758, F.A.R. 25.853(a), ASTM D3330, D3652N/A
• Width: 3 in