SHRINKFLEX® 2:1 KYNAR® FR heat-shrinkable tubing offers exceptional fire resistance (Flammability Rating: UL 224 VW-1) and is particularly resistant to abrasion, making it ideal for use in demanding mechanical environments. Its robust nature ensures effective strain relief for important components such as soldered connections. During use, the tubing reliably shrinks to half its original diameter, ensuring a secure and precise fit.