| Brand | 3M™ |
| Product Number | 398FR |
| UPC Code | 00021200966729 |
| Overall Width (Imperial) | 2 in |
| Overall Width (Metric) | 50.8 mm |
| Overall Length (Imperial) | 36 yd |
| Overall Length (Metric) | 32.9 m |
| Total Tape Thickness without Liner (Imperial) | 7 mil |
| Total Tape Thickness without Liner (Metric) | 0.18 mm |
| Backing (Carrier) Material | Glass Cloth |
| Backing (Carrier) Thickness (Imperial) | 5 mil |
| Backing (Carrier) Thickness (Metric) | 0.13 mm |
| Adhesive Type | Acrylic |
| Back Side Adhesive Thickness (Imperial) | 2 mil |
| Back Side Adhesive Thickness (Metric) | 0.05 mm |
| Product Color | White |
| Core Size (Imperial) | 3 in |
| Core Size (Metric) | 7.62 cm |
| Case Quantity | 24 rolls per case |
| Units per Case | 24.0 |
| Smallest Saleable Unit | Roll |
| Tensile Strength (Imperial) | 2080 oz/in |
| Tensile Strength (Metric) | 227.7 N/100mm |
| Elongation at Break | 7% |
| Maximum Operating Temperature (Fahrenheit) | 250 ℉ |
| Maximum Operating Temperature (Celsius) | 121 ℃ |
| Minimum Operating Temperature (Fahrenheit) | -20 ℉ |
| Minimum Operating Temperature (Celsius) | -29 ℃ |
| Indoor/Outdoor | Indoor/Outdoor |
| Shelf Life | 24 months |
| Application | Splicing Flame-Retardant Tape |
| Specifications Met | ASTM D3330, D3652, ASTM D3758, F.A.R. 25.853(a), F.A.R. 25.855(d), MIL A-3316C, Boeing BMS 5-146 Type I Class I Grade A |
| Industries | Aerospace, Automotive, Construction, General Industrial, Military & Government, Specialty Vehicles, Transportation |
| Regulatory Compliance | EU Compliant per directive 2003/11/EC, Antimony-Free |
| Liner Type | Skip-slit liner with blue polyethylene film |