Benefits
OEM Automotive Performance
Designed specifically for automotive exterior and interior attachment applications requiring long-term durability.
Superior Gap Filling
The 0.80 mm viscoelastic foam core compensates for manufacturing tolerances while maintaining an attractive bond line.
Excellent Stress Relaxation
Absorbs vibration and thermal movement between different materials, helping prevent stress concentration and adhesive failure.
High Adhesion
Provides excellent initial tack and develops very high final adhesion to automotive paints, metals, and engineering plastics.
Outstanding Weather Resistance
Performs reliably under UV exposure, rain, humidity, road salt, solvents, and temperature cycling.
Improved Manufacturing Efficiency
Eliminates screws, rivets, and clips while simplifying assembly and reducing overall vehicle weight.
Technical Specifications
| Property | Specification |
|---|---|
| Product Name | 3M™ Acrylic Foam Tape GT7108 |
| Tape Type | Double-Sided Acrylic Foam Tape |
| Foam Color | Gray |
| Foam Core | Medium-Density Viscoelastic Acrylic Foam |
| Adhesive Type | Acrylic Pressure-Sensitive Adhesive |
| Thickness | 0.80 mm (0.031 in) |
| Density | Approximately 658 kg/m³ |
| Liner | Dark Red Polyethylene Release Liner |
| Temperature Performance | Excellent across various operating temperatures |
| UV Resistance | Excellent |
| Weather Resistance | Excellent |
| Solvent Resistance | Excellent |
| Manufacturing Origin | Japan |
| Converting Services | Slitting, Rewinding, Laminating, Die-Cutting |
Applications
Typical applications include:
- Body side moldings
- Rocker panels
- Wheel arch extensions
- Claddings
- Pillar trim
- Side mirrors
- Spoilers
- Step pads
- Sill plates
- Sensor brackets
- Automotive decorative trim
- Plastic body components
- Exterior garnish
- Transportation equipment assembly
Compatible Materials
| Excellent Compatibility | Good Compatibility | Surface Testing Recommended |
|---|---|---|
| Automotive Paint | ABS | Polypropylene (PP) |
| Painted Steel | Polycarbonate | Polyethylene (PE) |
| Aluminum | PMMA | Silicone Rubber |
| Stainless Steel | Rigid PVC | PTFE |
| Glass | Engineering Plastics | Low Surface Energy Plastics |
Note: For PP, PE, TPO, and other low-surface-energy substrates, adhesion testing or an adhesion promoter is recommended.
Industries
- Automotive OEM
- Automotive Tier 1 Suppliers
- Electric Vehicles (EV)
- Commercial Vehicles
- Transportation Equipment
- Industrial Manufacturing
- Appliance Manufacturing
- Plastic Component Assembly
Why Choose 3M™ GT7108?
- Genuine 3M automotive acrylic foam technology
- 0.80 mm thickness offers an excellent balance of gap filling and appearance
- Excellent adhesion over a broad temperature range
- Outstanding stress relaxation for long-term durability
- High peel strength and holding power
- Superior UV, weather, and solvent resistance
- Compatible with automated assembly lines
- Custom slit rolls and precision die-cut parts available
- OEM-qualified automotive bonding solution
- Professional converting services from Guangdong Yousan
Installation Guide
- Clean bonding surfaces using isopropyl alcohol (IPA) or an approved automotive cleaner.
- Ensure surfaces are dry and free from oil, wax, dust, and contaminants.
- Apply the tape with firm, even pressure across the entire bonding area.
- Avoid repositioning after initial contact.
- Allow 24–72 hours at room temperature for maximum bond strength.
- Conduct adhesion testing before mass production, especially on low-surface-energy plastics.
Storage
Store the tape in its original unopened packaging.
Recommended storage conditions:
- Temperature: 16°C–27°C (60°F–80°F)
- Relative Humidity: 40–60% RH
- Avoid direct sunlight and excessive moisture.
- Store horizontally.
- Follow the FIFO (First-In, First-Out) inventory principle.
FAQ
What is 3M™ GT7108 used for?
GT7108 is designed for permanently bonding automotive exterior and interior trim, including rocker panels, claddings, spoilers, wheel arch extensions, side mirrors, and decorative moldings.
How thick is GT7108?
The nominal thickness is 0.80 mm (0.031 in).
Is GT7108 suitable for outdoor applications?
Yes. It offers excellent resistance to UV radiation, weathering, solvents, humidity, and temperature cycling, making it suitable for long-term outdoor automotive use.
Can GT7108 replace mechanical fasteners?
Yes. It is commonly used to replace clips, rivets, and screws in automotive trim assembly while improving appearance and reducing vehicle weight.
Can GT7108 be die-cut?
Yes. Guangdong Yousan provides custom die-cutting, slitting, laminating, rewinding, and precision converting services.
What is the difference between GT7106, GT7108, and GT7110?
- GT7106: 0.60 mm
- GT7108: 0.80 mm
- GT7110: 1.00 mm
GT7108 provides an ideal balance between gap-filling capability, conformability, and bond-line aesthetics for most automotive exterior trim applications.
Downloads
Available upon request:
- 3M™ GT7108 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.
