Box Lock Shipping Packaging Tape Refill Rolls – Extreme Grip, 3-Pack with 3" Core
The Scotch® Box Lock Tape Refill Roll 3950-3 is a heavy-duty packaging tape engineered for secure, professional-grade box sealing. Featuring an advanced solvent-free hot melt adhesive, it sticks instantly to any box surface—including harder-to-stick 100% recycled cardboard—and delivers extreme grip that keeps boxes sealed even through rough handling. Its thicker, durable construction reduces splitting and tearing, while the smooth, quiet unwind and easy-to-find roll start make every application fast and clean. This 3-pack of refill rolls fits standard 3-inch core dispensers, providing 163.8 yards of total sealing power for shipping, mailing, moving, and storage applications.
Top Features
- Extreme Grip Adhesion: Sticks instantly to any box, even hard-to-stick 100% recycled cardboard.
- Guaranteed to Stay Sealed: 3M will refund the purchase price if the box does not stay sealed (proof of purchase required).
- Durable Construction: Thicker design reduces splitting, slivering, and tearing during application.
- Solvent-Free Adhesive: Strong hot melt formula creates a secure, long-lasting seal over edges and seams.
- Smooth & Quiet Unwind: Crystal-clear, clear-to-core film with easy-to-find roll start for fast use.
| Category | Specification |
|---|---|
| Performance and Application | |
| Type | Box Sealing / Shipping Packaging Tape |
| Recommended Use | Shipping, Mailing, Moving, Storage |
| Compatible Surfaces | All box types, including 100% recycled cardboard |
| Performance Guarantee | Guaranteed to stay sealed (3M refund policy) |
| Adhesion and Construction | |
| Adhesive Type | Solvent-Free Hot Melt |
| Grip Level | Extreme Grip |
| Tear Resistance | Reduced splitting, slivering & tearing |
| Backing | Crystal Clear, Clear-to-Core |
| Unwind | Smooth & Quiet Release |
| Dimensions and Build | |
| Width | 1.88 in (48 mm) |
| Length per Roll | 54.6 yd (50 m) |
| Total Length (3-Pack) | 163.8 yd (150 m) |
| Core Diameter | 3 in (7.6 cm) |
| Color | Clear |
| Pack Size | 3 Refill Rolls |
| Dispenser | Not Included (fits 3" core dispensers) |
| Identifiers and Compliance | |
| Scotch Part Number | 3950-3 |
| 3M Stock # | B5005654004 |
| UPC | 638060856475 |
| GTIN-13 / EAN | 00638060856475 |
Scotch® Box Lock Packaging Tape is backed by 3M's "Guaranteed to Stay Sealed" promise — if your box does not stay sealed, 3M will refund the purchase price (proof of purchase required). Trusted for shipping, mailing, moving, and storage applications.













