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Dustproof 18650 PVC Heat Shrink Film with -80°C to +120°C Temperature Range for Short-Circuit Prevention

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Dustproof 18650 PVC Heat Shrink Film with -80°C to +120°C Temperature Range for Short-Circuit Prevention

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Thickness : 0.03mm–0.08mm

Color Options​ : Customizable, Black, Blue, Red, Gold, Green, etc.

Brand Name : XWELL

Model Number : 18650

Certification : CE

Place of Origin : China

MOQ : 100pcs

Price : 1-1000USD/Negotiable

Payment Terms : L/C,D/A,D/P,T/T,Western Union,MoneyGram

Supply Ability : 10000pcs/month

Delivery Time : 5-8 working days

Packaging Details : Carton

Material​ : PVC

Model : 18650

Temperature Range​ : -80°C to +120°C

Pre-Shrink Size​ : 72mm (L) × 30mm (W)

Shrunk Diameter​ : 18.5mm (±0.2mm)

Applications​ : Battery pack Insulation

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Dustproof 18650 PVC Heat Shrink Film 72mm×30mm – Battery Insulation & Short-Circuit Prevention

When assembling 18650 lithium batteries, reliable insulation is the first line of defense against short circuits, moisture damage, and safety hazards. Our 18650 PVC Heat Shrink Film (72mm x 30mm) is tailored to solve the points of ill-fitting or low-quality shrink wraps: it offers precise dimension matching, fast and uniform shrinking, and long-lasting insulation protection—making it ideal for both individual battery cell insulation and small battery pack wrapping. Crafted from high-grade PVC material, it balances flexibility, heat resistance, and cost-effectiveness, ensuring your 18650 batteries stay safe and functional in every application.

Core Advantages
Advantage Key Benefit for Battery Assemblers
72mm ×30mm Precise Fit Optimized dimensions for standard 18650 cylindrical cells (18mm diameter × 65mm length)—after shrinking, it tightly wraps the battery without excess material or loose edges, ensuring neat insulation.
Fast & Uniform Shrinkage Shrinks quickly at 80℃-120℃ (compatible with heat guns or shrink tunnels); uniform shrinking rate (30%-35%) avoids wrinkles or bubbles, reducing rework and improving assembly efficiency.
Reliable Insulation & Protection Excellent electrical insulation (volume resistivity ≥10¹⁴Ω*cm) prevents short circuits between cells; also blocks dust, moisture, and minor scratches, extending battery lifespan.
Flexible & Tear-Resistant High-grade PVC material with good flexibility—won't crack during shrinking or bending; tear resistance ≥20N/cm ensures durability during battery handling and installation.
Cost-Effective Bulk Supply Available in large rolls (100m/roll, 500m/roll) with competitive pricing—ideal for mass production of 18650 battery packs (e.g., power banks, flashlights) without compromising quality.
Technical Specifications
Specification Details
Product Type PVC Heat Shrink Film for 18650 Batteries
Dimensions (Width×Length) 72mm × 30mm (per piece, if cut) / 72mm × 100m/500m (roll form)
Material High-quality PVC (polyvinyl chloride)
Shrink Temperature Range Activation temp: ≥80℃; Full shrink temp: 100℃-120℃
Shrink Rate Longitudinal: 5%-10%; Transverse: 30%-35%
Electrical Insulation Volume resistivity: ≥10¹⁴Ω*cm; Dielectric strength: ≥15kV/mm
Mechanical Performance Tear resistance: ≥20N/cm; Tensile strength: ≥15MPa
Color Standard clear (custom colors: black, red, blue available on request)
Packaging Roll form: Plastic film wrapping + carton; Cut piece: PE bag + carton
Application Scenarios
  • Consumer Electronics: Insulating individual 18650 cells for power banks, portable chargers, wireless speakers, and laptop batteries—prevents short circuits from metal contact.
  • Lighting Devices: Wrapping 18650 cells in flashlights, headlamps, and LED work lights—blocks dust and moisture, ensuring stable performance in outdoor use.
  • Small Energy Storage: Insulating cells in mini solar power banks, backup batteries for routers, and IoT device batteries—protects against environmental factors.
  • DIY Battery Projects: Ideal for hobbyists assembling 18650 packs for RC cars, drones (small-scale), and home electronics—easy to use with standard heat guns.
  • Industrial Auxiliary: Insulating 18650 cells in handheld medical devices, sensors, and portable meters—meets basic insulation safety standards for industrial use.
How to Use
  1. Cut to Size: If using roll form, cut the film into 30mm lengths (or your desired size) using a utility knife or film cutter.
  2. Cover the Battery: Slide the 18650 cell into the 72mm×30mm film, ensuring the entire cell (except the positive/negative terminals if needed) is covered.
  3. Apply Heat: Use a heat gun (set to 100℃-120℃) or shrink tunnel to apply uniform heat to the film. Move the heat source back and forth to avoid overheating—the film will shrink tightly around the battery in 5-10 seconds.
  4. Cool & Inspect: Let the battery cool for 10-15 seconds, then check for wrinkles or loose areas (reapply heat if necessary).
Customization & Order Support
Customization Item Available Options
Dimensions Custom width (50mm-100mm) and length (20mm-50mm) for non-standard 18650 cells
Color Black, red, blue, green (MOQ 500m per custom color)
Thickness 0.03mm-0.08mm (adjustable for different insulation needs)
Packaging Customized roll lengths (e.g., 200m/roll) or pre-cut pieces in branded packaging
Quality Assurance & After-Sales
  • Quality Testing: Each batch undergoes shrinkage rate, insulation resistance, and tear strength tests—test reports provided free for bulk orders.
  • Certifications: Compliant with RoHS and REACH standards—safe for consumer and industrial electronics.
  • MOQ & Lead Time: Standard clear film: MOQ 10 rolls (100m/roll), ships in 2-3 days; Custom colors/sizes: MOQ 500m, delivers in 5-7 days.
  • After-Sales: Free sample roll (1m) for testing; 3-month warranty for quality issues (e.g., uneven shrinkage, poor insulation).
Need help confirming if this film fits your 18650 battery model or want to customize dimensions? Send us your battery specs—our team will provide a free compatibility check. Contact us today for a detailed quote!

Product Tags:

Dustproof PVC Heat Shrink Film

      

18650 Heat Shrink Film -80°C to +120°C

      

Short-Circuit Prevention Battery Pack Shrink Tube

      
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