The 25mm insulation cross filament tape 50 meter combines a fiberglass filament reinforcement grid embedded in the tape backing with a pressure sensitive adhesive layer. The cross-pattern fiberglass strands running in both directions prevent the tape from tearing across its width or splitting along its length standard packing tape tears easily under pulling force, while the filament reinforcement in this tape resists that failure mode even under sustained tension. That combination of insulating backing and high tear resistance makes it the standard wrapping tape for cylindrical 18650 and 21700 battery pack assemblies.
The 25mm insulation tape width covers the circumference of standard battery pack when wrapped spirally, securing the pack structure and providing both insulation and mechanical integrity in one layer. The pressure sensitive adhesive bonds to cell wrapping, PVC shrink sleeve and cardboard surfaces on contact without requiring heat. The cross filament tape 50 meter roll provides enough material for multiple battery packs or extended production runs without frequent roll changes. The filament tape 25mm suits battery pack wrapping, multi-core cable harness bundling, and carton reinforcement strapping in logistics. Available on StemVolt. This tape is working on battery pack construction and wire and package securing.
Related Product:
Features:
- Cross fiberglass filament pattern prevents both longitudinal splitting and lateral tearing
- Pressure sensitive adhesive bonds on contact to cell wrap, PVC and cardboard surfaces
- Width 25mm suits to battery pack circumference wrapping and cable bundling
- Insulating backing provides electrical isolation alongside mechanical reinforcement
Technical Specifications:
| Specification | Details |
|---|---|
| Product Type | Filament Tape |
| Width | 25mm |
| Length | 50 Metres |
| Material | Reinforced Fiberglass Filament |
| Adhesive Type | Pressure Sensitive |
Applications:
- Insulation cross filament tape wraps 18650 battery pack outer circumference for mechanical integrity
- 25mm insulation tape secures parallel cell group layers in multi-row battery pack
- Filament tape bundles multi-core wire harnesses in robot chassis cable management
- Cross filament tape reinforces cardboard packaging for battery module shipping and transport
- Tape roll secures PVC heat shrink sleeve on battery pack ends before shrinking
Package Includes:
- 1 × 25mm Insulation Cross Filament Tape














Inderjit Chawla –
Shipped quickly and safely
Sourav Gangwal –
Loved the product quality
Vishnu Vardhan –
This cross filament tape has excellent strength and holds battery packs securely.
Dhruv Sardesai –
Strong and durable tape