Knowledge Base

While both are elastic, their processing and structures differ. TPE can be melt-processed like plastic without requiring traditional chemical curing (vulcanization).

Not automatically. Clean production scrap can often be reprocessed, but end-product recyclability depends on the material grade, contamination, and local recycling infrastructure.

No. Successful overmolding requires a specific TPE grade designed for that exact substrate, combined with proper part design and molding conditions.

Many TPEs consist of hard and soft phases. The soft phase provides flexibility, while the hard phase acts as physical crosslinks to give the material its recovery mechanism.

The major families include TPS/TPE-S (versatile & soft), TPV (weatherable), TPU (high abrasion & tear resistance), TPO (lightweight & impact resistant), TPC/TPEE (heat & oil resistant), and PEBA (low density & high resilience).

TPE can be processed using standard methods such as injection molding, extrusion (for tubing/profiles), overmolding (onto substrates like PP, ABS, PC, or PA), and blow molding.

To select an optimal grade, you need to evaluate the application (part function), performance (hardness, tensile strength), environment (temperature, chemical/UV exposure), processing method, substrate material, and regulatory/compliance requirements.

TPE is the technical abbreviation for thermoplastic elastomer and includes families such as TPE-S, TPV, TPU, TPO, TPC/TPEE, and PEBA. TPR means thermoplastic rubber and is often used commercially for SBS- or SEBS-based compounds, but it is not a globally uniform standalone classification.

When to Choose TPE

• The supplier identifies the specific TPE family and grade.
• Several TPE chemistries must be compared.

When to Choose TPR

• An existing drawing or market uses the TPR term.
• The supplier can explain the actual chemistry represented by TPR.

TPE-S is generally based on styrenic block copolymers such as SBS or SEBS and is formulated with other polymers and additives. TPU is thermoplastic polyurethane, a separate family within TPE. Hydrolysis, oil, and low-temperature behavior depend on TPU chemistry and formulation.

When to Choose TPE-S

• Soft-touch or anti-slip surfaces.
• High-volume, cost-sensitive molded products.
• Overmolding formulations for PP or selected substrates.

When to Choose TPU

• High abrasion, tensile, or tear requirements.
• Transparent or high-gloss appearance.
• Wheels, footwear, cables, or engineered parts.

TPE is a family of thermoplastic elastomers. Flexible PVC uses an appropriate plasticizing and stabilization system to provide flexibility. Performance and compliance depend strongly on the exact formulation in both cases.

When to Choose TPE

• Ergonomic grips and soft touch.
• Higher resilience or low-temperature flexibility.
• A grade designed for a selected plastic substrate.

When to Choose Flexible PVC

• Cable, construction, or established PVC processes.
• Existing equipment and supply chain favor PVC.
• The formulation meets performance and market requirements.

No. Compare the full formulation, durability, process, recovery route, and regulatory requirements.

Migration depends on plasticizer chemistry, formulation, contact media, temperature, and time.

No. Softness can be a factor, but compatibility, polymer structure, formulation, and environment are also critical.

Wiping addresses the current surface only. Migration may recur if the underlying mechanism remains.