Premium Repulpable Splicing Tape KZ2120B | Best Alternative to Tesa 51913 & 51917
Double Sided Splicing Tape KZ2120B is a high-performance, 100% repulpable and water-soluble splicing tape designed for the paper, coating, and printing industries. Featuring an ultra-thin 100μm profile, it combines a dispersible cotton paper carrier with high-temperature-resistant, water-soluble modified acrylic adhesive on both sides. The tape is engineered for automatic and manual flying splices at high production speeds (up to 2500 m/min) and extreme temperatures (from -10°C up to 150°C, short-term peak of 200°C). It completely dissolves in water within 60 seconds, eliminating secondary recycling pollution and protecting downstream equipment.
Product Features & Benefits
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100% Water-Soluble & Repulpable: Both the substrate and adhesive dissolve completely within 60 seconds in room temperature water. It guarantees zero contamination in paper recycling mills, significantly reducing paper holes and fiber loss.
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Extreme Flying Splice Speeds: Engineered with powerful initial grab and high-shear tack to support high-speed web changes from 0 to 2500m/min, preventing expensive web snaps.
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Excellent Thermal Stability: Highly resistant to thermal stress. It operates continuously between -10°C and 150°C, and will not ignite or lose adhesion even at 200°C for 2 minutes (ideal for drying tunnels and coater ovens).
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Consistent All-Weather Performance: Formulated with cold-resistant adhesive that maintains superior tack and shear during cold winter months.
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Ultra-Thin Profile (100μm): Easily passes through calendar rolls, coating blades, and printing nips without shearing off or peeling.
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High Contrast & Optical Detection: Available in transparent and multiple high-contrast colors, ensuring a 100% recognition rate by automated optical splice detection systems.
Product Structure
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release liner (105μm): Double-sided silicone release paper
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Adhesive Layer (50μm): High-temperature resistant, water-soluble modified adhesive
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Carrier (Middle): High-temperature resistant cotton paper (pulpable & dispersible)
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Adhesive Layer (50μm): High-temperature resistant, water-soluble modified adhesive
Technical Specification Table
| Technical Parameter | Specification Value |
| Product Model | KZ2120B |
| Equivalent / Alternatives | 3M 406, 3M-R3227, Tesa 51913, Tesa 51917 |
| Adhesive Chemistry | Water-soluble modified acrylic adhesive |
| Carrier Substrate | Repulpable cotton paper (fully dissolvable) |
| Total Tape Thickness | 100 μm (Excluding release liner) |
| Liner Thickness / Type | 105 μm / Double-sided white release paper |
| Color Option | Transparent (Custom colors available for optical detection) |
| Water Solubility Speed | Completely dissolves within 60 seconds (Room Temperature) |
| Initial Adhesion | 10 - 10 N / 25mm (Tested at 1200g weight) |
| Tensile Strength | > 5 N / 25mm |
| Operating Speed | 0 - 2500 m/min (Full-speed dynamic flying splice) |
| Operating Temperature | -10°C to 150°C (Short-term peak resistance: 200°C for 2 mins) |
| Warranty / Shelf Life | 2 Years (Under sealed original packaging) |
Main Applications
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Paper Mills: For raw paper roll starting, flying splices, and tail sealing.
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Paper Converting & Coating: High-temperature dynamic web overlapping splices in coater lines.
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Commercial Web Printing: Static and dynamic splicing on rotogravure, flexographic, and offset printing presses.
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Leading Edge Splices: For preparation of reliable V-splices, W-splices, and straight butt-splices.