3M™ Extreme Sealing Tape 4411B+
At 1.0 mm (0.040 in), 3M™ Extreme Sealing Tape 4411B+ offers a heavier-gauge option in the Extreme Sealing Tape line, designed to seal out water at screw heads, rivets, joints, splices, and other protrusions. The flexible TPO backing conforms to irregular surfaces, and the linerless acrylic adhesive bonds to metals, plastics, and other surfaces on contact. Full bond strength develops over 72 hours, though the seal forms immediately upon application.
Applications include: Sealing screw heads, rivets, joints, splices, and other protrusions to prevent water intrusion.
- Thicker 1.0 mm gauge for demanding applications
- Instant seal, no cure time or messiness
- Linerless adhesive, less waste
- Bonds to metals, plastics, and other surfaces
- Full bond strength in 72 hours
| Property | Specification |
| Adhesive Material | Acrylic |
| Backing (Carrier) Material | TPO |
| Total Thickness (Imperial) | 40 mil |
| Total Thickness (Metric) | 1.02 mm |
| Backing (Carrier) Thickness (Imperial) | 4 mil |
| Backing (Carrier) Thickness (Metric) | 0.10 mm |
| Density (Metric) kg/m³ | 820 |
| Density (Imperial) lb/ft³ | 51.191 |
| Adhesion to Steel (N/cm) | 16.6 |
| Adhesion to Steel (oz/in) | 151.7 |
| Adhesion Test Method | ASTM D3330 |
| Product Color | Black |
| Maximum Operating Temperature (Celsius) | 93 °C |
| Maximum Operating Temperature (Fahrenheit) | 199 °F |
| Adhesive Thickness (mm) | 0.9144 |
| Liner | None |
| Standard Roll Length (m) | 17 |
