Practical PVC technical articles: from formulation switching to troubleshooting.
Can methyl tin stabilizers be replaced with Ca-Zn? Yes — YesPVC's T series was developed to replace methyl tin for transparent products; see the TDS for each grade's dosage.
PVC pipe yellowing is thermal degradation during processing or storage. 6 common causes and solutions: sufficient stabilizer dosage, temperature control, and the right S-510 grade.
Why must lead stabilizers be replaced? Can Ca-Zn match lead's performance? Which grade for which application, and what to watch when switching?
Extruded material yellowing, blackening, or showing scorch marks — is it temperature, residence time, or the wrong stabilizer? Written in troubleshooting order.
Transparent PVC base colour turns yellow, then green and dark — the root cause is the stabilizer’s initial colouring: YesPVC’s T series gives a blue-white base with very high transparency.