Premium 1-inch wide urethane foam tape with acrylic adhesive for industrial sealing, cushioning, and sound dampening. 36-yard rolls with 125 mil thickness, charcoal gray color, 9 rolls per case. Ideal for electronics, automotive, and construction applications.
3M™ Urethane Foam Tape 4318 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 engineered to provide superior sealing, cushioning, and sound dampening properties in demanding applications. The charcoal gray foam construction, measuring 1 inch wide and 36 yards in length with a 125 mil thickness, creates an effective air and moisture barrier when compressed. The tape's soft conformable design adapts to irregular surfaces while maintaining excellent adhesion to multiple substrates.
The tape excels in sealing out air, dust, and light when compressed to 50%, making it ideal for electronics, automotive, and construction applications. With its high initial quick-stick acrylic adhesive (3M™ Adhesive 430), the tape bonds securely to various surfaces including metal, plastic, and composite materials. The adhesive provides 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. The silicone-treated paper liner protects the adhesive during storage and handling.
This product is specifically designed for industrial and occupational use, offering exceptional value in applications requiring vibration dampening, thermal insulation, and contamination protection. Each case contains 9 rolls, providing ample supply for production environments. The open-cell foam structure allows controlled airflow while maintaining component separation, making it perfect for electronic equipment that requires cooling ventilation. With a 24-month shelf life and proven performance across appliance, construction, industrial, specialty vehicle, and transportation sectors, this tape represents a reliable solution for demanding sealing and cushioning requirements.
Key Features
- Conformable low-density open-cell foam design seals air, dust, and light when compressed
- Excellent cushioning characteristics with high absorbency for moisture protection
- Dampens sounds and absorbs vibration in electronic and automotive applications
- High initial quick-stick acrylic adhesive with excellent shear strength at elevated temperatures
- Performs reliably from short-term 180°F (82°C) to long-term 150°F (70°C) applications
Technical Specifications
| Specification |
Value |
| Product Type | Urethane Foam Tape with Acrylic Adhesive |
| Part Number | 4318 |
| Width | 1 inch (2.5 cm) |
| Length | 36 yards (32.9 meters) |
| Thickness | 125 mil (3.2 mm) |
| Color | Charcoal Gray |
| Backing Material | Urethane |
| Adhesive Type | Acrylic (3M™ Adhesive 430) |
| Number of Adhesive Sides | Single-sided |
| Density | 2 lb/ft³ (32 kg/m³) |
| Primary Liner | Silicone Treated Paper |
| Liner Thickness | 3 mil (0.08 mm) |
| Tensile Strength | 25 lb/in (170 kPa) |
| Temperature Range | Short-term 180°F (82°C), Long-term 150°F (70°C) |
| Shelf Life | 24 months |
| Units per Case | 9 rolls |
| Smallest Saleable Unit | Roll |
| Application | Sealing, Window and Door Glazing, Vibration Dampening |
| Indoor/Outdoor Rating | Indoor/Outdoor |
| Industries | Appliance, Construction, General Industrial, Specialty Vehicles, Transportation |
| UPC Code | 00051131064492 |
| 3M ID | 7000123395 |
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