Benefits
Automotive OEM Quality
Designed specifically for permanent bonding of automotive exterior and interior trim while meeting demanding OEM performance standards.
Maximum Gap Filling
The 2.0 mm acrylic foam core easily accommodates large surface irregularities and assembly tolerances, ensuring a uniform and reliable bond.
Excellent Stress Relaxation
The viscoelastic foam absorbs vibration, impact, and thermal movement between different substrates, reducing stress on bonded joints.
High Bond Strength
Provides strong initial tack and develops exceptional long-term adhesion to painted metals, aluminum, glass, and engineering plastics.
Long-Term Outdoor Durability
Offers outstanding resistance to UV radiation, weathering, moisture, automotive fluids, solvents, and temperature cycling.
Improved Manufacturing Efficiency
Replaces screws, rivets, clips, and liquid adhesives while reducing vehicle weight and improving assembly appearance.
Technical Specifications
| Property | Specification |
|---|---|
| Product Name | 3M™ GT7120 Acrylic Foam Tape |
| Tape Type | Double-Sided Acrylic Foam Tape |
| Foam Color | Gray |
| Foam Core | Viscoelastic Acrylic Foam |
| Adhesive Type | Acrylic Pressure-Sensitive Adhesive |
| Thickness | 2.0 mm (0.079 in) |
| Liner | Dark Red Polyethylene Release Liner |
| Operating Temperature | -40°C to 90°C (-40°F to 200°F) |
| UV Resistance | Excellent |
| Weather Resistance | Excellent |
| Solvent Resistance | Excellent |
| Typical Applications | Automotive Exterior & Interior Trim |
| Converting Services | Slitting, Rewinding, Laminating, Die-Cutting |
Applications
Typical applications include:
- Body side moldings
- Claddings
- Rocker panels
- Wheel arch extensions
- Pillars
- Sill plates
- Spoilers
- Step pads
- Exterior decorative trim
- Sensor brackets
- Plastic body panels
- Automotive interior trim
- Transportation equipment assembly
Compatible Materials
| Excellent Compatibility | Good Compatibility | Surface Testing Recommended |
|---|---|---|
| Automotive Paint | ABS | Polypropylene (PP) |
| Painted Steel | Polycarbonate | Polyethylene (PE) |
| Aluminum | PMMA | TPO |
| Stainless Steel | Rigid PVC | Silicone Rubber |
| Glass | Engineering Plastics | PTFE |
Note: Adhesion testing or an adhesion promoter is recommended when bonding to low-surface-energy materials such as PP, PE, and TPO.
Industries
- Automotive OEM
- Automotive Tier 1 Suppliers
- Electric Vehicles (EV)
- Commercial Vehicles
- Transportation Equipment
- Industrial Equipment Manufacturing
- Plastic Component Assembly
Why Choose 3M™ GT7120?
- Genuine 3M automotive acrylic foam technology
- 2.0 mm thickness provides superior gap-filling performance
- Excellent adhesion to automotive paints, metals, and engineering plastics
- Outstanding vibration damping and stress relaxation
- Excellent UV, weather, solvent, and heat resistance
- Maintains clean bond-line aesthetics
- Suitable for automated production lines
- Available in custom slit rolls and precision die-cut parts
- Meets multiple automotive OEM specifications
- Professional converting services from Guangdong Yousan
Installation Guide
- Clean bonding surfaces using isopropyl alcohol (IPA) or an approved automotive cleaner.
- Ensure all surfaces are dry and free from dust, oil, wax, or contaminants.
- Apply the tape using firm, even pressure over the entire bonding area.
- Avoid repositioning after initial contact.
- Allow 24–72 hours at room temperature to achieve maximum bond strength.
- Test adhesion before mass production, particularly on low-surface-energy plastics.
Storage
Store the tape in its original unopened packaging.
Recommended storage conditions:
- Temperature: 16–27°C (60–80°F)
- Relative Humidity: 40–60% RH
- Avoid direct sunlight and excessive humidity.
- Store horizontally.
- Follow the FIFO (First-In, First-Out) inventory principle.
FAQ
What is 3M™ GT7120 used for?
GT7120 is designed for permanently bonding automotive exterior and interior trim, including claddings, rocker panels, spoilers, wheel arch extensions, pillars, and decorative moldings.
How thick is GT7120?
The nominal thickness is 2.0 mm (0.079 inch).
Is GT7120 suitable for outdoor automotive applications?
Yes. It offers excellent resistance to UV exposure, weathering, moisture, solvents, and temperature cycling, making it ideal for long-term outdoor automotive use.
Can GT7120 replace mechanical fasteners?
Yes. GT7120 is widely used to replace screws, rivets, and clips, helping reduce weight while improving appearance and assembly efficiency.
Can GT7120 be die-cut?
Yes. Guangdong Yousan provides custom slitting, laminating, rewinding, and precision die-cutting services.
What is the difference between GT7116, GT7120, and GT7125?
- GT7116: 1.6 mm
- GT7120: 2.0 mm
- GT7125: 2.5 mm
GT7120 offers greater gap-filling capability than GT7116 and is ideal for larger bonding gaps or applications requiring increased vibration absorption.
Downloads
Available upon request:
- 3M™ GT7120 Technical Data Sheet (TDS)
- Safety Data Sheet (SDS)
- Automotive Bonding Guide
- Die-Cutting Capability Guide
- Product Brochure
Please contact our sales team if you require the latest technical documentation.
