Does silicone tubing lose elasticity with extended use?

Yes, and it is one of the primary aging markers to monitor. The main mechanism is thermo-oxidative degradation: at elevated temperatures or in oxygen-rich environments, the polymer chains either increase crosslink density (producing hardness and stiffness) or undergo chain scission (producing brittleness). UV radiation and ozone attack the molecular structure from the surface inward, causing surface cracking before bulk properties are affected. Contact with incompatible media — particularly aromatic solvents, concentrated acids or bases — can cause swelling or chemical erosion that alters mechanical behavior independent of thermal history. Under sustained mechanical stress, such as continuous compression in a peristaltic pump, creep and stress relaxation cause gradual permanent set. Selecting tubing rated for the actual operating temperature and media, and replacing it within its expected service interval, are the practical mitigations. Ruixiang’s peristaltic pump tubing is tested to over 200 hours of continuous operation at 300 RPM.

For product specifications, technical data sheets, or sample requests, contact the Ruixiang team: olivia@dgruixiang.com  |  www.medicalsiliconetube.com