Selecting the right PVC (Polyvinyl Chloride) product requires a focus on material purity and additive stability. Ensure the product uses 100% virgin PVC resin if high durability is required, as recycled content can reduce tensile strength. For specific applications, verify the plasticizer type (e.g., phthalate-free for medical or toy grades) and the presence of UV stabilizers for outdoor longevity. Always request a technical data sheet (TDS) to confirm density, Shore hardness, and thermal stability.