Industrial-grade urethane foam tape with acrylic adhesive for sealing, cushioning, and sound dampening in electronics and construction applications. 3/8 in x 18 yd roll with 250 mil thickness.
3M™ Urethane Foam Tape 4314 is a premium conformable, low-density, open-cell foam tape featuring a pressure-sensitive acrylic adhesive on one side. This industrial-grade tape is specifically designed for sealing, cushioning, and sound dampening applications in electronic equipment, automotive components, and construction projects. The charcoal gray foam measures 3/8 inch wide by 18 yards long with a 250 mil thickness, providing excellent coverage for multiple applications.
The tape features a soft, conformable foam construction that helps seal out air, dust, moisture, and light when compressed, making it ideal for applications requiring environmental protection. When compressed by 50%, the open-cell construction creates an effective air barrier while maintaining cushioning properties. The 3M™ Adhesive 430 provides high initial quick-stick to multiple substrates with excellent chemical resistance and shear holding strength, performing reliably at temperatures up to 180°F (82°C) short-term and 150°F (70°C) long-term.
Each case contains 24 rolls of tape, protected by a thick silicone-treated paper liner that maintains product integrity during storage and application. The tape's open-cell design allows for necessary airflow in electronic components while providing vibration damping, thermal insulation, and contamination protection. This product is specifically designed for industrial and occupational use only and is not intended for consumer applications.
Key Features
- Soft conformable open-cell foam design seals out air, dust, moisture and light when compressed
- Excellent cushioning characteristics with high absorbency for vibration dampening in electronic applications
- 3M™ Adhesive 430 provides high initial quick-stick to multiple substrates with superior shear strength
- Temperature performance up to 180°F (82°C) short-term and 150°F (70°C) long-term with excellent chemical resistance
- Silicone-treated paper liner protects adhesive and maintains product integrity during storage and application
Technical Specifications
| Specification |
Value |
| Product Number | 3M 4314 |
| Part Number | 4314 |
| UPC Code | 00021200674709 |
| Overall Width (Imperial) | 0.37 in (3/8 in) |
| Overall Width (Metric) | 9.52 mm |
| Overall Length (Imperial) | 18 yd |
| Overall Length (Metric) | 16.45 m |
| Backing Material | Urethane |
| Foam Thickness (Imperial) | 250 mil (1/4 in) |
| Foam Thickness (Metric) | 6.4 mm |
| Primary Liner | Silicone Treated Paper |
| Primary Liner Thickness (Imperial) | 3 mil |
| Primary Liner Thickness (Metric) | 0.08 mm |
| Adhesive Type | Acrylic (3M™ Adhesive 430) |
| Number of Adhesive Sides | Single-sided |
| Product Color | Charcoal Gray |
| Density (Imperial) | 2 lb/ft³ |
| Density (Metric) | 32 kg/m³ |
| Tensile Strength (Imperial) | 25 lb/in |
| Tensile Strength (Metric) | 170 kPa |
| Temperature Performance Short-term | Up to 180°F (82°C) |
| Temperature Performance Long-term | Up to 150°F (70°C) |
| Smallest Saleable Unit | Roll |
| Units per Case | 24 rolls |
| Shelf Life | 24 months |
| Indoor/Outdoor | Indoor/Outdoor |
| Adhesion Time | Typically satisfactory within 20 minutes, continues to build with time |
| Application | Sealing, Window and Door Glazing, Sound Dampening, Vibration Absorption |
| Industries | Appliance, Construction, General Industrial, Specialty Vehicles, Transportation |
| Brand | 3M™ |
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