Premium acrylic foam bonding tape offering permanent adhesion comparable to mechanical fasteners, ideal for industrial applications with moisture resistance and temperature versatility
3M™ VHB™ Tape 4979F is a premium acrylic foam bonding solution engineered for permanent, quick-setting adhesion on thin, lightweight, and dissimilar materials. This advanced pressure-sensitive adhesive tape features a closed-cell acrylic chemistry that provides robust bonding strength comparable to mechanical fasteners like rivets, welds, and screws, while eliminating the need for drilling, grinding, and project cleanup. The tape is specifically designed for industrial and occupational applications where two bonded surfaces may expand and contract differentially, making it ideal for challenging environments and conditions.
With a highly conformable acrylic foam core, the 4979F delivers an excellent balance of strength and flexibility, creating smooth, seamless, and aesthetically pleasing joints that maintain surface integrity. The polyethylene film liner protects against moisture and elements, creating a permanent seal that withstands water exposure and extreme environmental conditions. This versatile bonding system performs reliably in short-term applications at temperatures up to 300°F (149°C) and long-term applications withstanding up to 200°F (93°C), with excellent plasticizer resistance for extended durability.
The 4979F is UL GREENGUARD and UL GREENGUARD Gold Certified, contributing to LEED credits for sustainable construction projects. This 1/4 inch wide tape comes in 36-yard rolls with a 62 mil thickness and is supplied in cases of 36 rolls. Ideal applications include general industrial bonding, transportation assembly, construction, appliance repair and assembly, signage, electronics manufacturing, panel and trim attachment, metal bonding, and vibration-resistant fastening across multiple industries.
Key Features
- Provides quick and permanent bonding on thin, lightweight, and dissimilar materials
- Creates smooth, seamless, and aesthetically pleasing fastening without visible fasteners
- Replaces rivets, welds, screws, and liquid adhesives with comparable mechanical strength
- Eliminates drilling, grinding, refinishing, welding, and project cleanup requirements
- UL GREENGUARD and UL GREENGUARD Gold Certified for LEED credit contribution
- Closed-cell acrylic chemistry withstands extreme environments and moisture exposure
- Highly conformable acrylic foam core balances strength with flexibility
- Performs at temperatures up to 300°F short-term and 200°F long-term
- Excellent plasticizer resistance for extended durability and reliability
- Indoor/outdoor versatility for diverse industrial applications
Technical Specifications
| Specification |
Value |
| Product Name | 3M VHB Tape 4979F |
| Part Number | 4979F |
| 3M Product Number | 4979 |
| 3M ID | 7100057539 |
| UPC Code | 00021200560804 |
| Overall Width (Imperial) | 0.25 in |
| Overall Width (Metric) | 6 mm |
| Overall Length (Imperial) | 36 yd |
| Overall Length (Metric) | 32.9 m |
| Total Tape Thickness without Liner (Imperial) | 62 mil |
| Total Tape Thickness without Liner (Metric) | 1.6 mm |
| Core Size (Imperial) | 3 in |
| Core Size (Metric) | 76.2 mm |
| Product Color | Black |
| Liner Material | Polyethylene Film |
| Adhesive Type | Acrylic |
| Foam Type | Conformable |
| Brand | VHB |
| Maximum Operating Temperature (Fahrenheit) | 300 °F |
| Maximum Operating Temperature (Celsius) | 149 °C |
| Long-term Operating Temperature (Fahrenheit) | 200 °F |
| Long-term Operating Temperature (Celsius) | 93 °C |
| Indoor/Outdoor Rating | Indoor/Outdoor |
| Shelf Life | 24 Months |
| Smallest Saleable Unit | Roll |
| Units per Case | 36 Rolls |
| Certifications | UL GREENGUARD, UL GREENGUARD Gold |
| Suitable Industries | Appliance, Consumer Goods, General Industrial, MRO, Metalworking, Signage, Transportation |
| Application Types | Metal Bonding, Panel & Trim Bonding, Vibration Resistant, Impact Resistance, Alternatives to Rivetting or Welding |
| Use Classification | Industrial/Occupational Use Only |
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