Premium flame retardant polyurethane protective tape for aircraft corrosion prevention in wet areas, meeting FAR 25.853 requirements with dual liner system for precise installation
The 3M™ Polyurethane Protective Tape 8657DL is a premium flame retardant, wide-area protective tape specifically engineered for aerospace applications requiring exceptional corrosion prevention in wet-area environments such as aircraft lavatories and galleys. This advanced protective tape creates a "bathtub effect" that establishes an effective barrier against fluids while maintaining superior resistance to abrasion, scratching, and punctures. The tape is manufactured from an exceptionally tough, thermoplastic polyurethane elastomer that meets stringent FAR 25.853 burn resistance requirements when tested alone or as a covering applied to floor panels.
The 3M™ Polyurethane Protective Tape 8657DL features a dual liner system designed to optimize the installation process. The bottom 3 mil polyethylene liner protects the pressure-sensitive adhesive from contamination prior to application, while the top liner is imprinted with black lines at four-inch intervals to aid in precise installation during maintenance intervals and monument installation. When applied over aircraft floor panels and adjoining walls, this protective tape creates an ideal barrier against most fluids and helps prevent liquids from causing corrosion to the floor and stringer beams, ultimately reducing aircraft maintenance costs and extending service life.
Qualified to leading OEM aircraft specifications for aircraft moisture barrier applications in aircraft interiors, this product delivers economical corrosion protection that helps reduce overall aircraft maintenance expenses. The combination of exceptional toughness, flame retardancy, and superior adhesive performance makes the 3M™ Polyurethane Protective Tape 8657DL an essential component of comprehensive aircraft corrosion prevention systems, capable of achieving up to 90% corrosion reduction when used as part of the complete 3M™ Aircraft Corrosion Prevention System.
Key Features
- Meets CFR 25.853 flame retardant requirements for aircraft interiors and regulatory compliance
- Dual liner system with 3 mil polyethylene bottom liner and imprinted top liner at 4-inch intervals for precise installation
- Exceptionally tough thermoplastic polyurethane material resists abrasion, scratching, punctures and erosion
- Creates effective barrier against fluids with bathtub effect for corrosion prevention in wet areas
- Qualified to leading OEM aircraft specifications for aircraft moisture barrier applications
- Pressure-sensitive adhesive for fast and easy application without requiring heat or special equipment
- Economical solution that helps reduce aircraft maintenance costs by up to 90% corrosion reduction
- Operates reliably in extreme temperature ranges from -40°F to 180°F
Technical Specifications
| Specification |
Value |
| Product Number | 8657DL |
| UPC | 10048011636914 |
| 3M ID | 7000055332 |
| Backing Material | Polyurethane |
| Product Color | Translucent White |
| Adhesive Type | Pressure-sensitive |
| Overall Width (Imperial) | 24 in |
| Overall Width (Metric) | 609.6 mm |
| Overall Length (Imperial) | 36 yd |
| Overall Length (Metric) | 32.9 m |
| Backing Thickness (Imperial) | 16 mil |
| Backing Thickness (Metric) | 0.4 mm |
| Adhesion Strength (Imperial) | 35 lb |
| Adhesion Strength (Metric) | 38 N/100mm |
| Tensile Strength (Imperial) | 88 lb/in |
| Tensile Strength (Metric) | 1540 N/100mm |
| Maximum Operating Temperature (Fahrenheit) | 180°F |
| Maximum Operating Temperature (Celsius) | 82°C |
| Minimum Operating Temperature (Fahrenheit) | -40°F |
| Minimum Operating Temperature (Celsius) | -40°C |
| Minimum Installation Temperature (Fahrenheit) | 60°F |
| Minimum Installation Temperature (Celsius) | 15°C |
| Case Quantity | 1 Roll |
| Features | Flame Retardant, Dual Liner |
| Application | Corrosion Protection, Aircraft Interiors |
| Regulatory Compliance | CFR 25.853, FAR 25.853 |
| Brand | 3M |
| Liner System | Dual Liner - 3 mil polyethylene bottom liner with black imprinted lines at 4-inch intervals on top liner |
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