PVC Heat Shrink Tubing - Flame Retardant Insulation Sleeves for 18650 Battery

Our PVC heat shrink tube is a versatile, high-performance insulation and packaging solution, engineered for 18650 lithium battery packs and various electronic components. Made of premium eco-friendly PVC, it integrates reliable insulation, waterproof, dustproof and anti-corrosion properties, effectively protecting products from external damage, moisture, dust and chemical erosion. With a low shrink temperature of 80°C, it shrinks rapidly and adheres tightly to surfaces, delivering a smooth, glossy finish that enhances both protection and aesthetics.

Boasting uniform thickness, an oil-bright glossy texture and strict quality control, this tube avoids material and craftsmanship compromises, ensuring long-term durability and stable performance. Available in multiple standard sizes with full customization options, it caters to diverse packaging needs in electronics, lighting and energy storage industries, trusted by global manufacturers, DIY enthusiasts and maintenance professionals.

• All-Round Protection: Offers excellent insulation, waterproof, dustproof and anti-corrosion effects, isolating electronic components from harsh elements and extending service life.
• Fast Shrink & Tight Fit: Starts shrinking at 80°C, ensuring quick, even contraction without wrinkles or gaps, and a neat, glossy appearance.
• Superior Craftsmanship: Uniform thickness, smooth glossy surface and oil-bright texture. Strict quality control guarantees wear resistance, corrosion resistance and long-term reliability.
• Eco-Friendly & Safe: Non-toxic eco-friendly PVC complies with global environmental standards. Excellent insulation prevents short circuits for safe operation.
• Versatile & Customizable: Multiple standard sizes available; supports customization of size, wall thickness and color for diverse packaging requirements.

Widely used for insulation, protection and packaging across industries:

• Battery Packs: Ideal for 18650 and other cylindrical lithium battery packs, preventing short circuits and external damage.
• Electronic Components: Suitable for electrolytic capacitors, resistors, sensors, isolating circuits from moisture and dust.
• Lighting & LED: Insulates and packages LED pins, lamp holders, boosting safety and aesthetics.
• Industrial & Daily Packaging: Secures bottle mouths, small tools and precision parts with dustproof, waterproof and anti-corrosion effects.
• DIY & Maintenance: Perfect for DIY projects, equipment maintenance and small-batch production.

1. Select a tube 5-10mm larger than the object’s diameter for easy installation.
2. Slide the tube over the target area, ensuring full coverage of the part to be protected.
3. Apply 80°C hot air evenly with a hair dryer, heat gun or shrink machine for rapid, tight fitting.
4. Extend heating slightly on uneven surfaces/corners to eliminate wrinkles and ensure a smooth fit.

• Customization: Tailor size (diameter/flat width), wall thickness and color (blue, black, red, transparent, etc.) per drawings or samples.
• Sample Policy: Free samples for quality testing (buyer covers shipping; fee refundable on bulk orders).
• MOQ & Delivery: 100 rolls for standard sizes; bulk lead time 7-15 working days. Fast global shipping via DHL/FedEx/UPS.
• Quality Assurance: Strict batch inspection ensures uniform thickness, smooth surface and stable shrinkage, with no craftsmanship compromises.