Industrial-grade venting tape with non-woven porous backing for foam-in-place insulation processes. Features high air/gas permeability, pressure-sensitive adhesive, and minimal void formation. Ideal for appliance manufacturing and outgas venting applications.
3M™ Vent Tape 394 is a specialized industrial-grade venting tape featuring a unique non-woven porous backing designed for high air and gas permeability applications. This white tape measures 3/4 inch wide by 36 yards long with a 4 mil thickness and comes in a case of 48 rolls. The innovative non-woven synthetic backing provides excellent conformability while maintaining strong burst strength and effective solids barrier properties. The pressure-sensitive acrylic adhesive bonds securely to a wide variety of surfaces, making it ideal for foam-in-place insulation processes in appliance manufacturing. The tape's unique design allows air and gases to escape during the manufacturing process while keeping solids such as urethane foam in place, effectively minimizing voids and reducing cleanup requirements. With a maximum operating temperature of 120°F (49°C) and an 18-month shelf life from date of manufacture, this tape meets most typical outgassing requirements for industrial applications.
The 3M™ Vent Tape 394 is specifically engineered for use in refrigerator and freezer manufacturing, where it covers openings in cabinet cavities during the foam-in-place insulation process. The air-permeable backing prevents foam from escaping while allowing trapped gases to vent naturally, resulting in superior insulation quality with minimal defects. This tape delivers consistent performance with an adhesion strength of 12 oz/in and tensile strength of 6 lb/in, ensuring reliable performance in demanding manufacturing environments. The single-sided adhesive application provides clean, efficient installation without waste or overlap complications.
Designed for industrial and occupational use only, this product is not intended for consumer applications. The 3M™ Vent Tape 394 represents the company's commitment to applying advanced adhesion science to deliver innovative solutions that improve manufacturing processes and product quality. Whether you're in appliance manufacturing, foam-in-place insulation processes, or other industrial applications requiring specialized venting solutions, this tape provides the reliable performance and quality you expect from 3M's Industrial Adhesives and Tapes Division.
Key Features
- Unique non-woven porous backing with high air and gas permeability
- Pressure-sensitive acrylic adhesive bonds to wide variety of surfaces
- Meets most outgassing requirements for foam-in-place insulation processes
- Allows air and gases to escape while keeping solids in place
- Excellent burst strength and solids barrier for minimal voids and reduced cleanup
- Conformable backing provides effective seal in appliance manufacturing
- Maximum operating temperature of 120°F (49°C)
- 18-month shelf life from date of manufacture
Technical Specifications
| Specification |
Value |
| Product Number | 394 |
| UPC Code | 00021200148484 |
| 3M ID | 7100097116 |
| Overall Width (Imperial) | 0.75 inches |
| Overall Width (Metric) | 19.05 mm |
| Overall Length (Imperial) | 36 yards |
| Overall Length (Metric) | 32.91 meters |
| Total Tape Thickness without Liner (Imperial) | 4 mil |
| Total Tape Thickness without Liner (Metric) | 0.1 mm |
| Backing Material | Non-woven |
| Product Color | White |
| Adhesive Type | Acrylic |
| Number of Adhesive Sides | Single-sided |
| Adhesion Strength (Imperial) | 12 oz/in |
| Adhesion Strength (Metric) | 13 N/100mm |
| Tensile Strength (Imperial) | 6 lb/in |
| Tensile Strength (Metric) | 10.5 N/100mm |
| Elongation at Break | 18% |
| Maximum Operating Temperature (Fahrenheit) | 120°F |
| Maximum Operating Temperature (Celsius) | 49°C |
| Product Form | Roll |
| Product Type | Tape |
| Units per Case | 48 rolls |
| Smallest Saleable Unit | Roll |
| Shelf Life | 18 months from date of manufacture |
| Performance Level | Specialty |
| Brand | 3M™ |
| Application | Outgas Venting in Appliances |
| Industry | Appliance Manufacturing |
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