Premium aerospace-grade polyurethane protective tape with high shear acrylic adhesive, offering superior resistance to scratches, tears, erosion, and punctures for helicopter rotor blades and aircraft structures.
3M™ Polyurethane Protective Tape 8681HS is a premium leading edge erosion protection tape specifically designed for aerospace applications. This 18 mil thick 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 qualified to aerospace specifications and is ideal for protecting helicopter rotor blades and aircraft structures during production and maintenance operations.
The conformable design allows for easy application over curved surfaces without compromising performance. Available in multiple color options including matte clear and various gray shades (36118, 36173, 36251, 36270, 36320, and 36375), this tape can be painted over or applied to pre-painted surfaces. The acrylic adhesive provides consistent adhesion across a wide variety of substrates while remaining removable when necessary, making it ideal for both temporary and permanent applications.
Designed to withstand demanding environmental conditions including rain and sand erosion, the 3M Polyurethane Protective Tape 8681HS helps prevent structural damage with minimal impact on blade track and balance. With its proven track record in aerospace manufacturing and maintenance, this tape represents 3M's commitment to delivering best-in-class surface protection solutions that reduce costs, minimize rework, and extend aircraft component lifespan.
Key Features
- Tough thermoplastic polyurethane elastomer backing with exceptional durability
- High shear strength acrylic adhesive for superior bonding performance
- Excellent resistance to scratches, tears, erosion, and punctures
- Conformable design for easy application over curved surfaces
- Available in multiple colors including matte clear and gray shades
- Can be painted over or applied to pre-painted surfaces
- Qualified to aerospace specifications for certified performance
- Withstands demanding environmental conditions including rain and sand erosion
- Removable adhesive for flexible application options
- Minimal impact on blade track and balance
Technical Specifications
| Specification |
Value |
| Product Name | 3M Polyurethane Protective Tape 8681HS |
| Part Number | 8681HS |
| 3M Product Number | 8681HS |
| 3M ID | 7100013381 |
| Backing Material | Thermoplastic Polyurethane Elastomer |
| 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 |
| Overall Thickness (Imperial) | 14 mil |
| Overall Thickness (Metric) | 0.356 mm |
| Backing Thickness (Imperial) | 12 mil |
| Backing Thickness (Metric) | 0.31 mm |
| Adhesion Strength (Imperial) | 135 lb. |
| Adhesion Strength (Metric) | 148 N/100mm |
| Tensile Strength (Imperial) | 88 lb/in |
| Tensile Strength (Metric) | 1540 N/100mm |
| Minimum Installation Temperature (Fahrenheit) | 60 °F |
| Minimum Installation Temperature (Celsius) | 15 °C |
| Minimum Operating Temperature (Fahrenheit) | -40 ℉ |
| Minimum Operating Temperature (Celsius) | -40 ℃ |
| Maximum Operating Temperature (Fahrenheit) | 180 ℉ |
| Maximum Operating Temperature (Celsius) | 82 ℃ |
| Application | Leading Edge Erosion Protection |
| Brand | 3M |
| Case Quantity | 1.0 |
| Aerospace Qualification | Yes - Qualified to Aerospace Specifications |
| Removability | Removable when necessary |
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