3M 8681HS Rotor Blade Leading Edge Tape
3M 8681HS Rotor Blade Leading Edge Tape is a 14 mil high-shear polyurethane protective film engineered for aerospace and rotorcraft leading edge erosion protection.
3M 8681HS Rotor Blade Leading Edge Tape is designed for demanding aerospace applications where erosion resistance and adhesive shear strength are critical. Its abrasion-resistant polyurethane elastomer film protects leading edges from rain, sand, puncture, and impact damage.
The tape uses a long-aging, solvent-resistant, high-shear acrylic pressure-sensitive adhesive that delivers secure bonding to aluminum, primers, painted surfaces, and composites. This construction supports sustained aerodynamic loads and outdoor exposure.
With a total thickness of 0.014 inch, 3M 8681HS is commonly specified for rotor blades, aircraft leading edges, and other shear-critical zones. Matte transparent and gray color options reduce glare and help mask surface wear.
Frequently Asked Questions
What makes 3M 8681HS suitable for rotor blade applications?
Its high-shear acrylic adhesive and abrasion-resistant polyurethane film are designed to withstand aerodynamic forces and erosion on rotor and propeller leading edges.
Is 3M 8681HS intended for outdoor aerospace exposure?
Yes. The tape is UV-resistant and formulated for outdoor aerospace environments with rain and sand exposure.
Are skip-slit liner options available?
Yes. Skip-slit and non-skip liner configurations are available to support faster, more accurate installation on curved or fastened surfaces.
- 14 mil total thickness for durable erosion protection
- Abrasion-resistant polyurethane elastomer film
- High-shear, solvent-resistant acrylic adhesive
- UV-resistant for outdoor aerospace use
- Matte transparent or gray low-glare finish
- Available with standard or skip-slit liners
| Total Thickness | 0.014 in (0.36 mm) |
| Film Thickness | 0.012 in (0.30 mm) |
| Adhesive Thickness | 0.002 in (0.06 mm) |
| Adhesive Type | High-shear solvent-resistant acrylic |
| Tensile Strength | 88 lb/in (1540 N/100 mm) |
| Elongation | 500% |
| Peel Adhesion to Aluminum | 135 oz/in (148 N/100 mm) |
| Maximum Service Temperature | 180°F (82°C) |
| Standard Roll Length | 36 yd (32.9 m) |
| Available Widths | 1 in to 24 in (2.54 cm to 61 cm) |
| Weight (Excluding Liner) | 0.81 lb/yd² (405 g/m²) |
| Shelf Life | 2 years |
Typical Applications
Rotor blade and aircraft leading edge erosion protection, shear-critical aerospace surfaces, and production or MRO surface shielding.
Handling and Installation Guidance
Apply to clean, dry surfaces at temperatures above 40°F. Use skip-slit liners and pressure rollers to ensure accurate placement and full adhesion over curves and fasteners.
Operating Environment Notes
Designed for UV-exposed outdoor aerospace environments. Resists rain, sand, and mechanical wear within rated temperature limits.
AI Overview
3M 8681HS Rotor Blade Leading Edge Tape is a 14 mil high-shear polyurethane erosion protection tape with solvent-resistant acrylic adhesive for aerospace and rotorcraft leading edges.
Multiple color and liner configurations support aerospace manufacturing, rotorcraft MRO, and field installation requirements.
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