Premium 18 mil polyurethane protective tape for aerospace leading edge erosion protection with high shear acrylic adhesive, exceptional scratch and tear resistance, and easy conformability to curved surfaces.
3M™ Polyurethane Protective Tape 8681HS is a premium 18 mil leading edge erosion protection tape designed for aerospace applications. This advanced protective tape features a tough thermoplastic polyurethane elastomer backing combined with a high shear strength acrylic adhesive, delivering exceptional resistance to scratches, tears, erosion, and punctures. The tape is specifically engineered to help prevent structural damage to helicopter rotor blades with minimal effect on blade track and balance, making it an ideal solution for both aircraft and rotorcraft production and maintenance operations.
The 8681HS tape offers superior performance characteristics including strong resistance to wearing, abrasion, and tearing. It can withstand a wide variety of difficult environmental conditions, including rain and sand erosion, while maintaining consistent adhesion over time. The acrylic adhesive adheres to a wide variety of substrates and can be easily removed when necessary without leaving residue. This tape is available in multiple color options including matte clear, and various gray shades (36118, 36173, 36251, 36270, 36320, and 36375), allowing for flexibility in application and aesthetic preferences.
Conformable and easy to apply, this tape efficiently conforms over curved surfaces and can be painted over or applied to painted surfaces. Qualified to aerospace specifications, the 3M Polyurethane Protective Tape 8681HS represents the highest standards of quality and performance. With dimensions of 8 inches wide by 36 yards long, this single roll per case product is engineered for reliability and longevity, delivering exceptional value by reducing waste, rework, and maintenance time in aerospace manufacturing and maintenance applications.
Key Features
- Tough thermoplastic polyurethane elastomer backing with high shear strength acrylic adhesive
- Exceptional resistance to scratches, tears, erosion, and punctures for long-lasting protection
- Designed to help prevent structural damage to helicopter rotor blades with minimal effect on blade track and balance
- Conformable and easy to apply with excellent adhesion to curved surfaces and wide variety of substrates
- Can be painted over or applied to painted surfaces with easy removal capability when necessary
- Qualified to aerospace specifications for reliable performance in demanding environments
- Available in multiple color options including matte clear and various gray shades
- Resistant to rain and sand erosion with consistent adhesion retention over time
Technical Specifications
| Specification |
Value |
| Product Name | 3M Polyurethane Protective Tape 8681HS |
| Part Number | 8681HS |
| 3M Product Number | 8681HS |
| 3M ID | 7000001244 |
| UPC | 00021200410178 |
| Overall Width (Imperial) | 8 in |
| Overall Width (Metric) | 203.2 mm |
| Overall Length (Imperial) | 36 yd |
| Overall Length (Metric) | 32.9 m |
| Backing Material | Polyurethane |
| Backing Thickness (Imperial) | 12 mil |
| Backing Thickness (Metric) | 0.31 mm |
| Overall Thickness (Imperial) | 14 mil |
| Overall Thickness (Metric) | 0.356 mm |
| Adhesive Type | High Shear Acrylic |
| Product Color | Light Gray (36320) |
| Available Colors | Matte Clear, 36118 Gray, 36173 Gray, 36251 Gray, 36270 Gray, 36320 Gray, 36375 Gray |
| Application | Erosion Protection |
| Adhesion Strength (Imperial) | 135 lb |
| Adhesion Strength (Metric) | 148 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 |
| Brand | 3M |
| Industry | Aerospace |
| Primary Use | Leading Edge Erosion Protection, Helicopter Rotor Blade Protection |
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