Premium 18 mil polyurethane protective tape with high shear acrylic adhesive for aerospace erosion protection. Resists scratches, tears, and punctures while conforming to curved surfaces. Qualified to aerospace specifications.
3M™ Polyurethane Protective Tape 8681HS is an 18 mil leading edge erosion protection tape specifically designed for aerospace applications. This premium protective tape features a tough thermoplastic polyurethane elastomer backing combined with a high shear strength acrylic adhesive, providing exceptional resistance to scratches, tears, erosion, and punctures. The tape is engineered to help prevent structural damage to helicopter rotor blades with minimal effect on blade track and balance, making it an ideal solution for rotorcraft protection.
This versatile tape offers superior performance in challenging environmental conditions, including resistance to rain and sand erosion. The conformable design allows for easy application over curved surfaces, and the tape can be painted over or applied to painted surfaces. Available in matte clear and multiple gray options (36118, 36173, 36251, 36270, 36320, and 36375), this tape is qualified to aerospace specifications and is widely used in aircraft and rotorcraft production and maintenance. The high shear acrylic adhesive adheres to a wide variety of substrates while maintaining consistent adhesion over time, yet removes easily when necessary.
3M's commitment to aerospace excellence is evident in this product's engineering and reliability. By reducing waste, rework, and installation time, this protective tape delivers cost-effective solutions while maintaining the highest standards of quality and performance. The 8681HS tape represents 3M's dedication to enabling efficiencies and reducing aircraft weight through innovative surface protection technology.
Key Features
- Tough thermoplastic polyurethane elastomer with high shear strength acrylic adhesive
- Exceptional resistance to scratches, tears, erosion, and punctures
- Conformable design for easy application over curved surfaces
- Can be painted over or applied to painted surfaces
- Qualified to aerospace specifications for rotor blade and aircraft protection
- Resists rain and sand erosion in challenging environmental conditions
- Maintains consistent adhesion over time while removing easily when necessary
- Available in matte clear and multiple gray color options
- Minimizes effect on helicopter blade track and balance
- Reduces installation time and rework costs
Technical Specifications
| Specification |
Value |
| Part Number | 8681HS |
| 3M Product Number | 8681HS |
| 3M ID | 7100011831 |
| Backing Material | Polyurethane |
| Backing Thickness (Imperial) | 12 mil |
| Backing Thickness (Metric) | 0.3 mm |
| Total Tape Thickness | 18 mil |
| Adhesive Type | High Shear Acrylic |
| Product Color | Transparent (Matte Clear) |
| 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 |
| Minimum Operating Temperature (Fahrenheit) | -40 ℉ |
| Minimum Operating Temperature (Celsius) | -40 ℃ |
| Maximum Operating Temperature (Fahrenheit) | 180 ℉ |
| Maximum Operating Temperature (Celsius) | 82 ℃ |
| Minimum Installation Temperature (Fahrenheit) | 60 °F |
| Minimum Installation Temperature (Celsius) | 15 °C |
| Brand | 3M™ |
| Case Quantity | 1.0 |
| Aerospace Qualification | Qualified to aerospace specifications |
| Primary Use | Leading edge erosion protection for aircraft and helicopter rotor blades |
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