Premium flame retardant polyurethane protective tape for aircraft corrosion protection with dual liner system, pressure-sensitive adhesive, and conformable design for precise seam sealing in lavatory and galley applications.
3M™ Polyurethane Protective Tape 8658DL is a premium flame retardant seam sealing tape specifically engineered for aircraft interior corrosion protection in wet area applications. This rugged, 9 mil thick protective tape combines a thermoplastic polyurethane elastomer with a rubber-based acrylic pressure-sensitive adhesive to deliver exceptional performance in demanding aerospace environments. The tape is specifically designed for use in aircraft lavatory and galley areas, providing an excellent barrier to fluids while maintaining structural integrity and meeting stringent aviation safety standards.
The innovative dual liner system sets this product apart from standard protective tapes. The bottom 3 mil polyethylene liner protects the adhesive from contamination prior to application, while the top liner features black imprinted lines at four-inch intervals to aid in precise installation and alignment. The clear, conformable design allows the tape to be easily applied over curved and uneven surfaces while yielding professional results. With its exceptional resistance to abrasion, erosion, scratching, punctures, and impacts, this tape provides up to 90% corrosion reduction when used as part of the complete 3M Aircraft Corrosion Prevention System.
This product meets critical aerospace certifications including FAR 25.853 for aircraft interior burn requirements and 14 CFR 25.853(a) specifications. The pressure-sensitive acrylic adhesive ensures a firm, lasting bond across a wide temperature range while maintaining solvent resistance and excellent adhesion to composite materials. With zero added VOCs and comprehensive OEM qualification for moisture barrier applications, 3M Polyurethane Protective Tape 8658DL represents the highest standards of quality and performance in aircraft maintenance and protection.
Key Features
- Flame resistant - meets 14 CFR 25.853(a) for aircraft interior burn certifications
- Dual liner system with black imprinted lines at 4-inch intervals for precise installation
- Thermoplastic polyurethane elastomer resistant to abrasion, scratch, erosion, corrosion, tear and puncture
- Excellent fluid barrier for seam sealing in floor panels, lavatory and galley applications
- Clear, conformable design easily applies over curved and uneven surfaces
- Pressure-sensitive acrylic adhesive for firm, lasting bond across temperature range
- Zero added VOCs with OEM qualification for moisture barrier applications
- Up to 90% corrosion reduction when used with complete 3M Aircraft Corrosion Prevention System
Technical Specifications
| Specification |
Value |
| Product Number | 8658DL |
| UPC Code | 00048011636931 |
| 3M ID | 7100015837 |
| Backing Material | Polyurethane |
| Adhesive Type | Pressure-sensitive acrylic |
| Overall Width (Imperial) | 4 in |
| Overall Width (Metric) | 101.6 mm |
| Overall Length (Imperial) | 36 yd |
| Overall Length (Metric) | 32.9 m |
| Overall Thickness (Imperial) | 9 mil |
| Overall Thickness (Metric) | 0.229 mm |
| Backing Thickness (Imperial) | 6 mil |
| Backing Thickness (Metric) | 0.15 mm |
| Bottom Liner | 3 mil polyethylene |
| Top Liner | Imprinted with black lines at 4-inch intervals |
| Case Quantity | 2 rolls per case |
| 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 |
| Application | Aircraft corrosion protection and seam sealing |
| Primary Use Areas | Aircraft lavatories, galleys, and floor panels |
| Certifications | FAR 25.853, 14 CFR 25.853(a) |
| VOC Content | Zero added VOCs |
| Brand | 3M |
| Tape Type | Erosion and corrosion protection |
| Features | Flame retardant, dual liner, clear, conformable |
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