
2026-03-07
Many people easily confuse silicone heat shrink tubing with silicone tubing, but the main difference between the two is obvious. Silicone heat shrink tubing shrinks and shrinks when heated, while silicone tubing retains its size and does not change even after heating.
Differences
Heat shrink silicone tube
Expansion technology is used to keep space free from shrinkage; When heated, compaction occurs, and the internal diameter decreases at high temperatures, providing a tight fit. Mainly used for sealing, fixing and coating, suitable for insulating conductors, sealing sensors, protecting pipe openings from moisture and dust, medical devices and coating small components. Easy to install and provides a reliable seal.

Silicone tubes
Fixed inner diameter, will not deform when heated. Mainly used for liquid transfer, wire winding and long-term flexible operation. Suitable for baby bottle tubes, water dispenser tubes, medical infusion and drainage systems, mechanical ventilation, liquid transfer and wire laying. Soft and resistant to bending, safe for long-term gas and liquid supply.
Similarities
Both products are made of silicone rubber, which has high heat resistance, soft texture and aging resistance. They are available in three variants depending on the application.
Industrial grade
It has excellent heat resistance and aging resistance, suitable for equipment, wiring harnesses and mechanical protection.
Food grade
Safe, non-toxic and odorless, suitable for products in direct contact with food.
Medical grade
Sterile, mildew resistant and has good biocompatibility, suitable for a variety of medical devices.