Custom Color High-Temp Resistant Adhesive Highland Barley Paper for 18650/21700/26650/32650 Battery Insulation - 0.08-0.2mm Thickness, 180°C Continuous Rating

Price Negotiable
Price: 1-1000USD/Negotiable
MOQ: 100pcs
Delivery Time: 5-8 working days
Brand: XWELL
Product Description
Product Overview

Custom color high-temperature resistant adhesive highland barley paper provides reliable insulation for cylindrical battery cells including 18650, 21700, 26650, and 32650 formats. This natural fiber material combines exceptional thermal performance with secure adhesive bonding for enhanced battery pack safety.

Key Advantages
  • Multi-Cell Compatibility: Pre-cut sizes for 18650/21700/26650/32650 cells eliminate trimming requirements
  • Extreme Temperature Resistance: Withstands continuous 180°C operation with short-term tolerance up to 220°C
  • Strong Adhesive Backing: High-tack acrylic adhesive maintains secure bonding under vibration and thermal cycling
  • Natural & Eco-Friendly: Renewable highland barley fiber material compliant with RoHS/REACH standards
  • Space-Efficient Design: 0.08mm–0.2mm thickness with tensile strength ≥30MPa
Technical Specifications
Specification 18650 Cells 21700 Cells 26650 Cells 32650 Cells
Compatible Cell Size 18mm × 65mm 21mm × 70mm 26mm × 65mm 32mm × 65mm
Standard Thickness 0.1mm / 0.15mm 0.1mm / 0.15mm 0.15mm / 0.2mm 0.15mm / 0.2mm
Temperature Resistance Continuous: 180°C
Short-term: 220°C
Continuous: 180°C
Short-term: 220°C
Continuous: 180°C
Short-term: 220°C
Continuous: 180°C
Short-term: 220°C
Adhesive Performance Peel strength ≥0.5N/cm
Service temp: -40°C to 180°C
Peel strength ≥0.5N/cm
Service temp: -40°C to 180°C
Peel strength ≥0.6N/cm
Service temp: -40°C to 180°C
Peel strength ≥0.6N/cm
Service temp: -40°C to 180°C
Electrical Insulation Dielectric strength ≥10kV/mm
Volume resistivity ≥10¹⁴Ω·cm
Dielectric strength ≥10kV/mm
Volume resistivity ≥10¹⁴Ω·cm
Dielectric strength ≥12kV/mm
Volume resistivity ≥10¹⁴Ω·cm
Dielectric strength ≥12kV/mm
Volume resistivity ≥10¹⁴Ω·cm
Standard Form Roll (50m, 20mm width) or sheets (20mm×70mm) Roll (50m, 24mm width) or sheets (24mm×75mm) Roll (50m, 28mm width) or sheets (28mm×70mm) Roll (50m, 34mm width) or sheets (34mm×70mm)
Application Scenarios
  • Consumer Electronics: 18650 battery packs for power banks, laptops, and flashlights
  • Power Tools: 21700/26650 packs for cordless drills, grinders, and leaf blowers
  • Electric Mobility: 26650/32650 packs for e-scooters, electric bikes, and portable EV chargers
  • Energy Storage: 32650 packs for home solar storage and backup power systems
Customization Options
Customization Item Available Options
Dimensions Custom roll widths (10mm–100mm) and pre-cut sheet sizes
Thickness 0.08mm–0.3mm adjustable for insulation requirements
Adhesive Type Standard acrylic adhesive or silicone adhesive for -60°C to 200°C environments
Packaging Standard 50m/roll or custom small rolls (10m/roll) for testing
Quality Assurance & Support
  • Certifications: Compliant with RoHS, REACH, and UL 94 V-0 flame retardant standards
  • Testing: Each batch undergoes high-temperature resistance, adhesive strength, and insulation performance testing
  • Minimum Order: Low MOQ of 5 rolls or 500 pre-cut sheets for standard sizes
  • Lead Time: Standard orders ship within 2–3 days; custom orders within 5–7 days
  • Warranty: 6-month warranty covering adhesive failure and thickness tolerance issues
Free samples available (1m roll or 10 pre-cut sheets) for testing purposes.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company GUANGDONG XWELL TECHNOLOGY CO., LTD.
Location Room 316, Building 3, No. 801, Qiaoxing Avenue, Xiaoluo Village, Shatou Street, Panyu District, Guangzhou
Contact Person Sammy Qin

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