Custom Reinforced Gummed Tape












OPALUS PACK is a custom reinforced gummed tape manufacturer producing fiberglass reinforced kraft paper tape for heavy carton sealing, export packaging, and tamper-evident closure. This reinforced water activated tape uses kraft paper backing, water-activated starch adhesive, and embedded fiberglass strands to bond into corrugated board after wetting. In sample checks, a well-applied strip normally reaches firm contact within 20-40 seconds, helping cartons stay sealed through handling, stacking, and shipment.
- Size: 48mm, 60mm, 70mm, 72mm width; 100m, 150m, 450ft length
- Color: natural kraft, white kraft, custom printed surface
- Backing: 60-90gsm kraft paper with water-activated starch adhesive
- Reinforcement: fiberglass strands in 3-way or cross reinforced pattern
- Dispenser: manual brush dispenser, electric dispenser, automatic tape machine
- Custom details: logo, warning text, handling marks, paper weight, roll size
Product Overview
Custom reinforced gummed tape is made for cartons that need more than a light paper seal. It is selected when cartons carry heavier contents, move through export handling, or require visible damage if opened. Unlike ordinary custom printed kraft paper tape, this product depends on wet bonding and fiberglass reinforcement. After wetting, the starch adhesive softens and bonds into corrugated fibers instead of only sitting on the liner surface.
For heavy cartons, structural details affect sealing performance. OPALUS PACK supplies fiberglass reinforced kraft paper tape with lengthwise and cross-direction strands to resist tearing during stacking pressure, flap rebound, vibration, and repeated handling. A typical reinforcement spacing of 8-12mm gives support without making the tape too stiff for dispenser use. On recycled corrugated board, dust, liner absorption, wetting amount, and flap pressure should be checked before bulk sealing.

Benefits
- Water-activated adhesive creates a wet bond with corrugated board after proper wetting and pressure.
- Fiberglass reinforcement improves strip strength and reduces tearing during heavy carton handling.
- Tamper-evident carton sealing usually leaves fiber tear after forced removal.
- Suitable for export packaging with vibration, stacking pressure, and long-distance movement.
- Printed logos or warning marks can be added without weakening the structure.
- Compatible with manual and electric water-activated tape dispensers.

What Should Be Checked Before Applying Custom Reinforced Gummed Tape?
Before using custom reinforced gummed tape on a sealing line, check wetting condition first, not only print appearance. The adhesive side needs clean and even moisture to activate the starch-based glue. If the brush is dirty, water output is low, or the strip is pressed onto dusty carton flaps without enough compression, edge lifting may appear after drying. For export cartons, operators usually confirm water level, brush cleanliness, carton surface, and flap pressure before continuous sealing.

TDS
| Item | Typical Value |
|---|---|
| Product Type | Custom reinforced gummed tape |
| Backing Material | Kraft paper backing |
| Adhesive Type | Water-activated starch adhesive |
| Reinforcement Material | Fiberglass strands |
| Reinforcement Pattern | 3-way or cross reinforced pattern |
| Paper Weight | 60-90gsm typical factory test range |
| Total Thickness | 120-160um typical reference value |
| Width | 48mm, 60mm, 70mm, 72mm |
| Roll Length | 100m, 150m, 375ft, 450ft, 500ft |
| Strip Strength | 180-280N/25mm sample reference |
| MD Tensile Strength | >=180N/25mm typical factory test range |
| CD Tensile Strength | >=70N/25mm typical factory test range |
| Reinforcement Spacing | 8-12mm typical pattern reference |
| Bonding/Drying Time | Initial bond 20-40 seconds after wetting |
| Printing Option | 1-4 color logo, warning text, handling mark |
| Storage Condition | 16-27 C, 40-60% RH, original carton storage |
Applications
- Heavy corrugated carton sealing for industrial goods, tools, parts, and bulky contents.
- Export packaging where seals must resist vibration, stacking, and repeated handling.
- Tamper-evident carton sealing for valuable goods and controlled shipments.
- Warehouse packing lines using electric water activated tape dispensers.
- E-commerce cartons made from recycled or mixed corrugated board.
How Does Fiberglass Reinforcement Improve Heavy Carton Sealing?
Fiberglass reinforcement gives water activated reinforced paper tape a different role from ordinary paper tape. Kraft paper provides a printable surface, while embedded fiberglass strands support the strip during pulling, stacking, and impact movement. In typical sample references, strip strength may reach 180-280N/25mm, with MD tensile strength usually higher than CD tensile strength because lengthwise strands carry more pulling force. In a 3-way or cross reinforced structure, the filaments support machine and cross direction strength, helping the seal resist flap rebound. Once the adhesive bonds into corrugated fibers, forced removal usually leaves fiber tear or carton surface damage.
FAQ
Is custom reinforced gummed tape the same as normal custom printed kraft paper tape?
No. This tape is fiberglass reinforced and water activated. Normal printed kraft paper tape may suit lighter packaging, while reinforced gummed paper tape is designed for stronger carton sealing.
Can it be used on recycled corrugated cartons?
Yes, but sample testing is recommended. Dust, liner quality, and water absorption can affect bonding. Check wetting amount, compression, edge lifting, and fiber tear after drying.
What storage condition is recommended before use?
Store rolls in the original carton at 16-27 C and 40-60% RH where possible. High humidity or heat exposure may affect adhesive stability.
Can OPALUS PACK print logos or handling instructions on the tape?
Yes. OPALUS PACK can produce custom printed reinforced gummed tape with logos, security messages, handling marks, or warning text. Artwork size, repeat length, paper weight, and reinforcement pattern should be confirmed before production.