Benefits
Permanent Structural Bonding
Creates durable bonds that can replace screws, rivets, spot welding, and many liquid adhesives.
Gap-Filling Capability
The 1.1 mm foam core helps accommodate uneven surfaces while maintaining consistent bond strength.
Enhanced Product Appearance
Eliminates visible fasteners for a cleaner and more attractive finished product.
Long-Term Environmental Resistance
Offers excellent performance under UV exposure, humidity, temperature cycling, and outdoor weather conditions.
Improved Manufacturing Efficiency
Pressure-sensitive adhesive technology enables faster installation and supports automated assembly.
Shock & Vibration Absorption
The viscoelastic acrylic foam reduces stress concentration and protects bonded components from vibration and impact.
Technical Specifications
| Property | Specification |
|---|---|
| Product Name | 3M™ VHB™ 4950 |
| Tape Type | Double-Sided Acrylic Foam Tape |
| Foam Color | White |
| Adhesive Type | General Purpose Acrylic Adhesive |
| Foam Type | Firm Acrylic Foam |
| Thickness | 1.1 mm (0.045 in) |
| Liner | Densified Kraft Paper Liner |
| Bonding Method | Pressure-Sensitive Adhesive |
| Indoor / Outdoor Use | Suitable |
| UV Resistance | Excellent |
| Moisture Resistance | Excellent |
| Temperature Resistance | Excellent |
| Converting Services | Slitting, Rewinding, Laminating, Die-Cutting |
Refer to the official 3M Technical Data Sheet for complete performance data.
Applications
3M™ VHB™ 4950 is widely used for permanent bonding applications where high strength and long-term reliability are required.
Typical applications include:
- Metal panel bonding
- Aluminum composite panel assembly
- Glass bonding
- Architectural curtain wall systems
- Decorative trim attachment
- Nameplate and emblem mounting
- Appliance manufacturing
- Automotive body trim
- Electronic equipment assembly
- Solar panel components
- HVAC equipment
- Signage and display fabrication
- Transportation equipment
- Industrial machinery
- General structural bonding
Compatible Materials
3M™ VHB™ 4950 provides excellent adhesion to many high surface energy substrates.
| Excellent Compatibility | Good Compatibility | Testing Recommended |
|---|---|---|
| Aluminum | Painted Metals | Polypropylene (PP) |
| Stainless Steel | ABS | Polyethylene (PE) |
| Glass | Acrylic (PMMA) | PTFE |
| Polycarbonate (PC) | Rigid PVC | Silicone Rubber |
| High Surface Energy Plastics | Composite Materials | Powder-Coated Surfaces |
Note: Bond performance depends on substrate type, surface preparation, and environmental conditions. Always conduct production testing before large-scale manufacturing.
Industries
3M™ VHB™ 4950 is widely used in:
- Construction
- Architectural Facades
- Automotive Manufacturing
- Electronics
- Transportation
- Renewable Energy
- Appliance Manufacturing
- Signage & Displays
- Industrial Equipment
- Metal Fabrication
- Furniture Manufacturing
- HVAC Systems
Why Choose 3M™ VHB™ 4950?
3M™ VHB™ 4950 is one of the most widely used tapes in the VHB family, offering exceptional bonding performance and long-term durability for structural assembly.
Key advantages include:
- High-strength permanent structural bonding
- 1.1 mm gap-filling acrylic foam core
- Excellent weatherability and UV resistance
- Outstanding shock and vibration absorption
- Reliable indoor and outdoor performance
- Clean, invisible bond lines
- Supports automated manufacturing
- Precision die-cutting and custom converting available
- Suitable for metals, glass, and HSE plastics
- Trusted 3M™ VHB™ technology
Installation Guide
For the best bonding performance:
- Clean bonding surfaces with an appropriate solvent to remove dust, grease, and contaminants.
- Ensure all substrates are completely dry before application.
- Apply the tape with firm, uniform pressure across the bonding area.
- Avoid repositioning after initial contact.
- Allow sufficient dwell time for the adhesive to achieve maximum bond strength.
- Verify bonding performance on production substrates before mass manufacturing.
Storage
Store 3M™ VHB™ 4950 in its original packaging under clean and controlled conditions.
Recommended storage conditions:
- Temperature: 16°C–27°C (60°F–80°F)
- Relative Humidity: 40%–60%
- Keep away from direct sunlight and excessive heat.
- Protect from moisture, dust, and chemical contamination.
- Store rolls horizontally when possible.
- Follow the First-In, First-Out (FIFO) inventory principle.
Frequently Asked Questions (FAQ)
What is 3M™ VHB™ 4950 used for?
It is used for permanent structural bonding in construction, transportation, electronics, appliances, signage, and industrial manufacturing.
How thick is 3M™ VHB™ 4950?
The tape has a nominal thickness of 1.1 mm (0.045 in).
What materials can it bond?
It bonds aluminum, stainless steel, glass, acrylic, polycarbonate, painted metals, and many high surface energy plastics.
Can it replace screws, rivets, or welding?
Yes. In many structural applications, it can replace traditional mechanical fasteners while improving appearance and reducing assembly time.
Is it suitable for outdoor use?
Yes. It provides excellent resistance to UV radiation, moisture, chemicals, and weathering.
Can it be die-cut?
Yes. Guangdong Yousan offers precision die-cutting, slitting, laminating, rewinding, and custom converting services.
Does it require surface preparation?
Yes. Clean, dry, and contaminant-free surfaces are essential for achieving optimal bond strength.
Does it work on low surface energy plastics?
It is optimized for high surface energy materials. For low surface energy plastics such as PP and PE, testing or a dedicated LSE VHB tape (e.g., the 5952 family) is recommended.
Do you provide OEM converting services?
Yes. We offer OEM packaging, custom roll widths, precision die-cut parts, laminating, and engineering support.
Downloads
Technical documents available upon request:
- 3M™ VHB™ 4950 Technical Data Sheet (TDS)
- Safety Data Sheet (SDS)
- Product Brochure
- Application Guide
- Die-Cutting Capability Guide
Contact our technical team to obtain the latest product documentation and application support.
