Frequently Asked Questions

Find answers to common questions about our products and services

Product & Material Questions

Heat shrink tubing is a thermoplastic tube that shrinks radially when heated. When heat is applied (using a heat gun or oven), the molecular structure causes the tubing to contract tightly around cables, wires, or components, providing insulation, protection, and strain relief.
The shrink ratio indicates how much the tubing will reduce in diameter. A 3:1 ratio means the tubing will shrink to 1/3 of its original size. Higher ratios provide more flexibility in fitting various cable sizes but may have thicker walls.
Material selection depends on your requirements: Polyolefin for general purpose with excellent insulation, PVC for cost-effective basic applications, Fluoropolymer for high temperature and chemical resistance, and Adhesive-lined for waterproof and environmental sealing. Contact our technical team for personalized recommendations.
Yes! We provide complete technical specifications, material data sheets, certifications (UL, CSA, MIL-spec), and test reports for all products. Visit our Materials & Specifications page or contact us for specific documentation.
We stock heat shrink tubing from 1mm to 200mm+ diameter in various materials. Custom sizes and lengths can be arranged for bulk orders.
Absolutely! We offer sample packs for testing. Contact our sales team to request samples of specific materials or sizes.

We accommodate both small sample orders and large bulk purchases. Minimum quantities vary by product. Contact us for specific requirements.
Yes! We ship to India, China, and over 50 countries worldwide. We have experience handling international shipping, customs documentation, and logistics.
Delivery times vary by destination: USA (3-7 business days), India (7-14 business days), China (7-14 business days), Other international (10-21 business days). Express shipping available for urgent orders.
Yes, tracking numbers are provided for all shipments. You'll receive email notifications with tracking details once your order ships.
We provide all necessary customs documentation. Import duties and taxes are typically the buyer's responsibility, but we can provide guidance on documentation requirements for your country.
All shipments are carefully packaged. If damage occurs during transit, contact us immediately with photos. We'll work with the courier and arrange replacement or refund.

Shrink temperature varies by material: Polyolefin (90-120°C), PVC (80-100°C), Fluoropolymer (175-250°C). Always refer to specific product specifications.
Common heat sources include heat guns, ovens, or infrared heaters. For small applications, a heat gun works well. Large-scale production may use convection ovens or infrared tunnels. Never use open flames as they can damage the material.
Measure your cable/component diameter and select tubing with: (1) Supplied (expanded) diameter larger than your cable, and (2) Recovered (shrunk) diameter smaller than your cable. For example, a 10mm cable works with 15mm supplied / 7mm recovered tubing (2:1 ratio).
Yes, but material selection is important. UV-resistant polyolefin or adhesive-lined tubing is recommended for outdoor applications. Check specifications for UV and weather resistance ratings.
No, heat shrink tubing is a one-time use product. Once shrunk, it cannot be returned to its original size. The molecular cross-linking that occurs during manufacturing is permanent.
Absolutely! Our experienced technical team can help you select the optimal material, size, and shrink ratio for your specific application. Schedule a consultation through our contact page.

Submit an inquiry through our contact form with your requirements (product type, quantity, destination) or email [email protected]. We typically respond within 24 hours with a detailed quote.
Yes, we provide competitive pricing for bulk orders and ongoing supply agreements. Contact our sales team to discuss volume pricing.
We accept Wire Transfer (Bank Transfer), Letter of Credit (L/C) for large orders, PayPal (for smaller orders), and other methods can be discussed based on order size and location.
Yes! We welcome partnerships with regional distributors, wholesalers, and resellers. Visit our Distribution & Markets page or contact [email protected] for partnership opportunities.
Yes, for qualified partners with sufficient volume commitments, we can arrange private labeling and OEM solutions. Contact our sales team to discuss requirements.
We stand behind our product quality. If you receive defective or incorrect products, contact us within 7 days of delivery. We'll arrange replacement or refund after verification. Custom orders may have different terms.