Benefits
Superior Gap Filling
The 2.5 mm foam core effectively compensates for manufacturing tolerances and uneven bonding surfaces, ensuring consistent contact and reliable adhesion.
Designed for Automotive Trim Attachment
Engineered specifically for permanent attachment of automotive exterior and interior trim components requiring thicker foam construction.
Excellent Stress Relaxation
The viscoelastic acrylic foam absorbs vibration, mechanical loads, and thermal movement between dissimilar materials, extending service life.
High Bond Strength
Provides excellent initial tack and develops outstanding long-term adhesion to painted metals, aluminum, glass, and engineering plastics.
Long-Term Environmental Durability
Maintains excellent performance under UV exposure, rain, humidity, road salt, automotive fluids, solvents, and temperature cycling.
Improved Manufacturing Efficiency
Eliminates screws, rivets, clips, and liquid adhesives while reducing assembly time and improving product appearance.
Technical Specifications
| Property | Specification |
|---|---|
| Product Name | 3M™ GT7125 Acrylic Foam Tape |
| Tape Type | Double-Sided Acrylic Foam Tape |
| Foam Color | Gray |
| Foam Core | Medium-Density Viscoelastic Acrylic Foam |
| Adhesive Type | Acrylic Pressure-Sensitive Adhesive |
| Thickness | 2.5 mm (0.098 in) |
| Roll Width | 300 mm |
| Roll Length | 20 m |
| Liner | Polyethylene Release Liner |
| Temperature Performance | Excellent across various temperatures |
| UV Resistance | Excellent |
| Weather Resistance | Excellent |
| Solvent Resistance | Excellent |
| Manufacturing Origin | Japan |
| Converting Services | Slitting, Rewinding, Laminating, Die-Cutting |
Applications
Typical applications include:
- Automotive body side moldings
- Rocker panels
- Claddings
- Wheel arch extensions
- Roof moldings
- Pillar trim
- Spoilers
- Sill plates
- Step pads
- Decorative trim
- Sensor brackets
- Plastic body panels
- Exterior garnish
- Transportation equipment assembly
Compatible Materials
| Excellent Compatibility | Good Compatibility | Surface Testing Recommended |
|---|---|---|
| Painted Steel | ABS | Polypropylene (PP) |
| Aluminum | Polycarbonate | Polyethylene (PE) |
| Stainless Steel | PMMA | TPO |
| Automotive Paint | Rigid PVC | Silicone Rubber |
| Glass | Engineering Plastics | PTFE |
Note: Adhesion testing or the use of an adhesion promoter is recommended for low-surface-energy plastics such as PP, PE, and TPO.
Industries
- Automotive OEM
- Automotive Tier 1 Suppliers
- Electric Vehicles (EV)
- Commercial Vehicles
- Transportation Equipment
- Industrial Manufacturing
- Appliance Manufacturing
- Plastic Component Assembly
Why Choose 3M™ GT7125?
- Genuine 3M automotive acrylic foam technology
- 2.5 mm thickness provides outstanding gap-filling capability
- Excellent adhesion across a wide operating temperature range
- Superior stress relaxation and vibration damping
- Excellent peel strength and long-term durability
- Outstanding UV, solvent, weather, and heat resistance
- Suitable for automated production lines
- Available in slit rolls and precision die-cut parts
- OEM-qualified automotive bonding solution
- Professional converting services from Guangdong Yousan
Installation Guide
- Clean bonding surfaces with isopropyl alcohol (IPA) or an approved cleaner.
- Ensure all surfaces are dry and free from oil, wax, and dust.
- Apply the tape using firm, even pressure.
- Avoid repositioning after initial contact.
- Allow 24–72 hours at room temperature to achieve maximum bond strength.
- Perform adhesion testing 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
- Protect from direct sunlight and excessive humidity.
- Store horizontally.
- Follow the FIFO (First-In, First-Out) inventory principle.
FAQ
What is 3M™ GT7125 used for?
GT7125 is designed for permanent bonding of automotive exterior and interior trim, including rocker panels, claddings, spoilers, wheel arch extensions, moldings, and decorative components.
How thick is GT7125?
The nominal thickness is 2.5 mm (0.098 inch).
Is GT7125 suitable for outdoor use?
Yes. It provides excellent resistance to UV exposure, weathering, moisture, solvents, and temperature cycling for long-term automotive applications.
Can GT7125 replace mechanical fasteners?
Yes. GT7125 is widely used to replace clips, screws, and rivets, helping reduce vehicle weight while improving assembly efficiency and appearance.
Can GT7125 be die-cut?
Yes. Guangdong Yousan offers custom slitting, laminating, rewinding, and precision die-cutting services.
What is the difference between GT7120, GT7125, and GT7130?
- GT7120: 2.0 mm
- GT7125: 2.5 mm
- GT7130: 3.0 mm
GT7125 provides greater gap-filling capability than GT7120 and is recommended for larger assembly tolerances or applications requiring enhanced vibration damping.
Downloads
Available upon request:
- 3M™ GT7125 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.
