Hot Melt Sealing Tape
Foshan Opalus Adhesive Products Co., Ltd. is a hot melt bopp tape manufacturer using BOPP film backing and synthetic rubber hot melt adhesive for carton sealing that needs fast initial tack, firm peel adhesion, and steady holding power. Typical grades are supplied around 40 um-55 um total thickness, with adhesive coating selected by carton surface and sealing pressure. This tape is made for recycled corrugated cartons, rough paper surfaces, hand packing, and automatic sealing lines where edge contact and transport stability matter.
- Backing: BOPP film backing
- Adhesive: synthetic rubber hot melt adhesive
- Color: clear, transparent brown, light brown
- Common width: 36 mm, 48 mm, 50 mm, 72 mm
- Common length: 50 m, 100 m, 500 m, 1000 m
- Use method: hand dispenser and carton sealing equipment
Benefits
Product Overview
Hot melt bopp tape is selected when cartons need quicker surface grab than many water-based acrylic tapes can provide. The BOPP film backing gives tensile strength and stable feeding, while the hot melt adhesive system builds quick tack on recycled board, rough linerboard, and uneven paper fibers. Common grades may use 23 um-30 um BOPP film with 15 um-25 um adhesive thickness.
Recycled corrugated cartons may carry loose dust, mixed fiber density, rough facing, moisture variation, or flap rebound. Before repeat production, the tape should be checked on the same carton grade, packing pressure, and sealing equipment used on the actual line. Peel adhesion, holding power, edge lifting, unwind force, blade cut stability, and tape breakage should be reviewed together, not only steel-panel adhesion data.
For machine application, tight unwind, unstable cutting, low roller pressure, or short tape legs may cause opening after stacking or vibration. Low-temperature initial tack may be checked within a 7 C-45 C application reference, but the tape should not be treated as an extreme freezer grade unless separately validated.
Benefits
- Fast initial tack helps the tape grip recycled corrugated cartons soon after pressure is applied.
- The hot melt adhesive system improves contact on rough paper surfaces and slightly dusty linerboard.
- BOPP film backing supports hand packing and machine application, with tensile strength around 70-120 N/25 mm.
- Peel adhesion around 4.0-7.0 N/25 mm and shear reference of 3000+ min help evaluate carton closure.
- Stable unwind reduces tape breakage, uneven feeding, and unnecessary machine stops.
- Good edge contact helps reduce corner lifting when cartons are overfilled or under flap tension.
How Can Hot Melt BOPP Tape Help Control Edge Lifting During Carton Transport?
Hot melt bopp tape helps control edge lifting by forming a quick pressure-sensitive bond after wipe-down. For hand packing, press the center seam and both tape edges. For carton sealing equipment, check roller pressure, tape leg length, unwind tension, blade cut-off, and flap alignment together. A 24-hour dwell review on the actual recycled carton is useful because lifting may appear after stacking, vibration, flap rebound, or dust interference.
TDS
| Item | Typical Value |
|---|---|
| Backing Material | BOPP film backing |
| Adhesive System | Synthetic rubber hot melt adhesive |
| Film Thickness | 23 um-30 um, grade-dependent |
| Adhesive Thickness | 15 um-25 um, grade-dependent |
| Total Thickness | 40 um-55 um, typical product range |
| Peel Adhesion | 4.0-7.0 N/25 mm, test reference by substrate |
| Holding Power / Shear | 3000+ min, linerboard or standard test panel reference |
| Tensile Strength | 70-120 N/25 mm, machine-direction reference |
| Elongation at Break | 100%-180%, grade-dependent |
| Application Temperature Reference | 7 C-45 C, confirm by carton and tape grade |
| Dwell Time for Approval Test | 24 hours recommended before final carton review |
| Machine Use Check | Unwind force, roller pressure, blade cut-off, and tape leg length |
| Test Surface | Actual recycled carton or rough linerboard |
Applications
- Recycled corrugated cartons with rough or uneven paper facing
- Hand packing for warehouse dispatch and export carton preparation
- Automatic sealing lines using long machine rolls
- E-commerce, distribution, and general shipping boxes
- Overfilled cartons where faster grab is needed to resist flap rebound
- Packaging work where acrylic tape may build adhesion too slowly on recycled board
- Cartons exposed to normal stacking, handling, and transport vibration
What Should Be Checked Before Hot Melt BOPP Tape Is Approved for Recycled Corrugated Boxes?
Before approval, the tape should be tested on the recycled corrugated box used in production. Recycled linerboard can vary in dust level, roughness, moisture, and flap rebound, so steel-panel adhesion data alone is not enough. The check should include quick tack, peel adhesion, holding power, edge lifting after 24-hour dwell, and carton opening after simulated handling. For automatic equipment, also review feeding, blade cut-off, roller pressure, tape leg length, and whether both side legs stay flat after compression.
FAQ
How is hot melt bopp tape different from acrylic BOPP tape?
It uses synthetic rubber hot melt adhesive, giving faster initial tack on recycled cartons and rough paper surfaces. Acrylic BOPP tape is often selected for long-term clarity, UV stability, or wider storage conditions.
Can this tape be used on automatic carton sealing equipment?
Yes. Before bulk production, check roller pressure, unwind force, cut-off performance, tape leg length, and carton flap alignment on the actual sealing line.
Is this tape suitable for recycled corrugated cartons?
Yes. The hot melt adhesive system builds quick tack on recycled linerboard and rough carton surfaces. Testing should still use the actual carton grade because recycled board quality can vary.
Does this tape work in low-temperature conditions?
It can offer low-temperature initial tack as a grade-dependent reference, such as 7 C-45 C application checks. It should not be described as an extreme freezer tape unless a specific grade has been validated.