How does platinum-cured tubing differ from peroxide-cured tubing in practice?

The performance differences stem directly from the chemistry of each vulcanization route. Platinum-catalyzed addition cure produces no organic acid byproducts and leaves minimal residuals in the cured matrix, which translates to lower extractables, no residual odor, and significantly better long-term color stability. Peroxide-cured tubing generates acidic decomposition products during crosslinking; these residuals can be reduced through post-cure baking but are difficult to eliminate entirely. In biocompatibility terms, platinum-cured silicone meets the cleanliness requirements of medical and food contact applications without extensive post-processing; peroxide-cured material typically requires more rigorous extraction validation to reach comparable levels. Platinum-cured tubing also exhibits lower compression set, meaning it recovers its cross-section more fully after repeated deformation — a relevant property for peristaltic pump applications. The trade-off is cost: platinum catalysts are considerably more expensive than peroxide systems, which is reflected in unit price. All Ruixiang medical-grade and food-grade silicone tubing is produced using a platinum-catalyzed addition cure process.

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