Industrial-grade urethane foam tape with acrylic adhesive for cushioning, sealing, and sound dampening in electronics and automotive applications. Features high-density open-cell foam, excellent temperature performance, and reliable adhesion to multiple substrates.
3M™ Urethane Foam Tape 4104 is a premium industrial-grade foam tape engineered for demanding applications requiring superior cushioning and sealing performance. This single-sided foam tape features a firm, high-density, open-cell urethane foam construction with a pressure-sensitive acrylic adhesive designed to adhere to multiple substrates. The 250 mil (6.4 mm) thick foam design excels at trapping moisture, dust, and contaminants while allowing air and gas vapors to pass through for breathable sealing applications.
The tape comes in a convenient 3/4 inch width by 18 yard length format, packaged with 12 rolls per case for bulk industrial applications. It features exceptional cushioning characteristics combined with high absorbency, making it ideal for dampening sound and vibration in electronic components, automotive dashboards, and precision equipment. The pressure-sensitive acrylic adhesive provides high initial quick-stick to various surfaces while maintaining excellent shear strength and chemical resistance, performing reliably at temperatures up to 200°F (93°C) short-term and 350°F (176°C) long-term.
Protected by a thick silicone-treated paper liner, this foam tape offers an attractive and clean appearance after application. It meets UL 94HBF flammability standards and is engineered for industrial and occupational use in appliance, construction, general industrial, specialty vehicle, and transportation applications. The natural color foam may develop a slight yellow tint when exposed to light, which does not affect physical performance or durability.
Key Features
- Firm, high-density open-cell urethane foam design traps moisture, dust, and contaminants effectively
- Breathable seal allows air and gas vapors to pass through while maintaining moisture barrier
- Excellent sound dampening and vibration absorption for electronic and automotive applications
- High initial quick-stick with excellent shear strength and chemical resistance at elevated temperatures
- Meets UL 94HBF flammability standards for safety-critical industrial applications
- Pressure-sensitive acrylic adhesive performs reliably from 200°F to 350°F depending on duration
- Single-sided adhesive design with silicone-treated paper liner for clean application
- Superior cushioning characteristics with high absorbency for component protection
Technical Specifications
| Specification |
Value |
| Product Name | 3M™ Urethane Foam Tape 4104 |
| Part Number | 4104 |
| UPC Code | 00021200034138 |
| Backing Material | Urethane |
| Foam Type | Firm, High-Density Open-Cell |
| Adhesive Type | Pressure-Sensitive Acrylic (3M Adhesive 350) |
| Number of Adhesive Sides | Single-sided |
| Product Color | Natural |
| Overall Width (Imperial) | 0.75 inches (3/4 in) |
| Overall Width (Metric) | 1.9 centimeters |
| Overall Length (Imperial) | 18 yards |
| Overall Length (Metric) | 16.5 meters |
| Foam Thickness (Imperial) | 0.250 inches (250 mil) |
| Foam Thickness (Metric) | 6.4 millimeters |
| Primary Liner | Silicone Treated Paper |
| Primary Liner Color | White |
| Primary Liner Thickness (Imperial) | 3 mil |
| Primary Liner Thickness (Metric) | 0.08 millimeters |
| Density (Imperial) | 12 lb/ft³ |
| Density (Metric) | 192 kg/m³ |
| Tensile Strength (Imperial) | 115 lb/in |
| Tensile Strength (Metric) | 795 kPa |
| Elongation at Break | 1% |
| Temperature Performance (Short-term) | Up to 200°F (93°C) |
| Temperature Performance (Long-term) | Up to 350°F (176°C) |
| Indoor/Outdoor Use | Indoor/Outdoor |
| Application Type | Sealing, Window and Door Glazing |
| Industries | Appliance, Construction, General Industrial, Specialty Vehicles, Transportation |
| Specifications Met | UL 94HBF |
| Shelf Life | 24 Months |
| Smallest Saleable Unit | Roll |
| Units per Case | 12 Rolls |
| Recommended Applications | Electronics cushioning, sound dampening, moisture and dust sealing, automotive dashboards, register covers, recessed lighting, door and window seals |
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