Professional gray sealing tape with 40 mil thickness, instant adhesion, UV resistance, and water-tight seal for outdoor industrial applications. Linerless design eliminates caulking equipment and mess.
3M™ Extreme Sealing Tape 4411G+ is a professional-grade sealing solution designed for quick and clean sealing applications in demanding outdoor environments. This gray, 40 mil thick tape features an acrylic adhesive on a flexible thermoplastic polyolefin (TPO) backing that delivers instant adhesion and excellent conformability. The tape is engineered to eliminate the need for messy caulking equipment, providing a water-tight seal over edges, rivets, joints, splices, screw heads, holes, and gaps while maintaining superior durability.
Built with rugged construction, this sealing tape delivers exceptional resistance to sun, rain, extreme temperatures, vibration, and thermal expansion or contraction. The single-coated design ensures reliable performance in exterior applications including cargo trailer rail seals, HVAC enclosures, roof sealing, and various industrial sealing requirements. The linerless design eliminates traditional liner waste, supporting sustainability goals without compromising tape performance or adhesion strength.
Available in multiple colors and thicknesses, the 3M™ Extreme Sealing Tape 4411G+ combines convenience with professional-grade performance. Its UV resistance, water-tight seal capability, and humidity resistance make it ideal for construction, general industrial, MRO, metalworking, signage, solar, specialty vehicles, and transportation industries. The tape can be applied by hand directly to metals and plastics, simplifying the sealing process while delivering the durability and reliability that 3M is known for.
Key Features
- Instant adhesion with single-coated acrylic adhesive for quick application
- Rugged construction with resistance to sun, rain, extreme temperatures, and vibration
- Flexible TPO backing that conforms to fasteners, seams, joints, holes, and gaps
- Water-tight seal eliminates need for messy caulking applicators and cartridges
- Linerless design reduces waste and supports sustainability goals
- UV resistant and humidity resistant for long-term outdoor durability
- Available in multiple colors (gray, white, black) and thickness options
- Suitable for cargo trailers, HVAC enclosures, roof sealing, and industrial applications
Technical Specifications
| Specification |
Value |
| Product Number | 4411G+ |
| 3M ID | 7100366386 |
| Total Tape Thickness | 40 mil (1.0 mm) |
| Backing Material | Thermoplastic Polyolefin (TPO) |
| Adhesive Material | Acrylic |
| Adhesive Type | Permanent, Single-sided |
| Product Color | Gray |
| Container Type | Roll |
| Core Size | 3 inches (76.2 mm) |
| Application Temperature Range | 10°C to 93°C (50°F to 200°F) |
| Backing Thickness | 4 mil (0.1 mm) |
| Adhesive Thickness | 36 mil (0.9 mm) |
| Shelf Life | 24 months |
| UV Resistant | Yes |
| Water-tight | Yes |
| Foam Conformability | Very Conformable |
| Indoor/Outdoor | Both |
| Application Method | Apply by hand |
| Flame Resistant | No |
| Features | Abrasion Resistance, Heat Resistance, Humidity Resistance, Low Temperature Resistance |
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