3M™ Glass Cloth Tape 398FR

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Durable backing provides abrasion and puncture resistance for long-term aging performance in aerospace applications

Acrylic adhesive provides excellent long-aging properties ideal for many permanent applications

Available on a skip-slit liner for ease of application

Frequently viewed resources

Tech Data Sheet (PDF, 95KB)

Overall Width (Imperial)

Overall Width (Metric)

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Details

Highlights

Durable backing provides abrasion and puncture resistance for long-term aging performance in aerospace applications
Acrylic adhesive provides excellent long-aging properties ideal for many permanent applications
Available on a 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

Designed primarily for sealing aircraft cargo bay panels, 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.

Permanently Seal and Protect
Our 3M™ Glass Cloth Tape 398FR (PDF, 10.49 Kb) features a white glass-cloth backing designed to provide a clean finished appearance. This tape features a pressure sensitive, acrylic adhesive that adheres to a variety of substrates. It is available on a 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 250°F/121°C. A blue polyethylene film liner assists with ease of application. This tape features good puncture resistance, high tensile strength and superior abrasion resistance.

3M™ Glass Cloth Tape 398FR 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.

Aircraft window sealing, duct sealing and seat repair

Use 3M™ Glass Cloth Tape 398FR to seal aircraft cargo bay panels

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

Typical properties

Details

Adhesive Type	Acrylic
Application	Splicing Flame-Retardant Tape
Back Side Adhesive Thickness (Imperial)	2 mil
Back Side Adhesive Thickness (Metric)	0.05 mm, 0.13 mm
Backing (Carrier) Material	Glass Cloth
Backing (Carrier) Thickness (Imperial)	5 mil
Backing (Carrier) Thickness (Metric)	0.13 mm
Brands	3M™
Case Quantity	8/case, 12/case, 24/case
Core Size (Imperial)	3 in
Core Size (Metric)	7.62 cm
Elongation at Break	5.0 %, 7.0 %
Indoor/Outdoor	Indoor/Outdoor
Industries	Aerospace, General Industrial, Military & Government, Automotive, Construction, Specialty Vehicle, Transportation
Maximum Operating Temperature (Celsius)	121 ℃
Maximum Operating Temperature (Fahrenheit)	250 ℉
Minimum Operating Temperature (Celsius)	-29 ℃
Minimum Operating Temperature (Fahrenheit)	-20 ℉
Product Color	White
Shelf Life	24 Month
Smallest Saleable Unit	Roll
Specifications Met	ASTM D3330, D3652, ASTM D3758, F.A.R. 25.853(a)
Tensile Strength (Imperial)	2080.0 oz/in
Tensile Strength (Metric)	227.7 N/100mm
Total Tape Thickness without Liner (Imperial)	7 mil
Total Tape Thickness without Liner (Metric)	0.18 mm
Units per Case	8.0, 12.0, 24.0, 36.0, 48.0

Dimensions and Classifications

Overall Length (Imperial)	36 yd
Overall Length (Metric)	32.9 m, 32.91 m
Overall Width (Imperial)	0.75 in, 1 in, 2 in, 3 in, 4 in, 6 in
Overall Width (Metric)	10.2 mm, 19.05 mm, 25.4 mm, 50.8 mm, 76.2 cm, 152.4 mm

Resources

3M™ Glass Cloth Tape 398FR and 398FRP

Regulatory Data Sheet

Document Number: MSDS_2617397_US_EN_RDS

(PDF)

Reviews

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Overall Width (Metric)	10.2 mm, 19.05 mm, 25.4 mm, 50.8 mm, 76.2 cm, 152.4 mm
Total Tape Thickness without Liner (Metric)	0.18 mm
Overall Width (Imperial)	0.75 in, 1 in, 2 in, 3 in, 4 in, 6 in
Total Tape Thickness without Liner (Imperial)	7 mil
Backing (Carrier) Material	Glass Cloth
Product Color	White

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3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.