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ETPU & Supercritical Foaming Innovation

Huiyan Polymers (China) Co., Ltd. pioneers eco-friendly TPU foam materials using advanced supercritical foaming technology. Our ETPU solutions deliver unmatched resilience, durability, and sustainability across industries.

ETPU Foam Material

About Huiyan Polymers

A research-driven enterprise committed to the development and application of next-generation polymer materials.

Company Overview

Innovation Meets Responsibility

Huiyan Polymers (China) Co., Ltd. is a high-tech production enterprise powered by a strong R&D team. We focus on the research, development, and industrial application of advanced materials such as EPEBAX, ETPEE, and ETPU.

Our mission is to bridge scientific innovation with real-world applications, delivering sustainable, high-performance materials that meet the evolving needs of global industries.

  • Supercritical Foaming Technology
  • Eco-Friendly & Non-Toxic Materials
  • High Resilience & Temperature Resistance
  • Global Applications in Footwear, Automotive & Safety

Our Products

Engineered for performance, sustainability, and innovation. Discover our range of ETPU and TPU foam materials.

ETPU Foam Pellets

ETPU Foam Pellets

Expanded Thermoplastic Polyurethane "popcorn" material with high resilience and ultra-light density.

  • ✔ Eco-friendly & recyclable
  • ✔ Density: 80–120 kg/m³
  • ✔ High rebound resilience
  • ✔ Yellowing resistance (Level 4)
BOOST-Grade TPU Foam

BOOST-Grade TPU Foam

Premium-grade ETPU engineered for athletic footwear midsoles with superior energy return.

  • ✔ Energy return >60%
  • ✔ Temperature resistant (-20°C to 80°C)
  • ✔ Low compression set
  • ✔ Ideal for running shoes
Supercritical Foamed Sheets

Supercritical Foamed Sheets

Uniform, closed-cell TPU foam sheets for industrial and protective applications.

  • ✔ Thickness: 2–20 mm
  • ✔ Non-toxic & odorless
  • ✔ Excellent vibration damping
  • ✔ Customizable density
ETPU Shoe Midsole

ETPU Shoe Midsole

Ready-to-mold ETPU granules for injection molding of high-performance shoe soles.

  • ✔ Cloud-like cushioning
  • ✔ Lightweight & durable
  • ✔ Compatible with standard molding
  • ✔ Low VOC emissions
EPEBAX Foam Material

EPEBAX Foam Material

High-flexibility, low-temperature resistant foam for extreme condition applications.

  • ✔ Flexibility down to -40°C
  • ✔ High abrasion resistance
  • ✔ Low water absorption
  • ✔ Used in ski boots & outdoor gear
ETPEE Foam Pellets

ETPEE Foam Pellets

Thermoplastic polyester elastomer foam with excellent mechanical strength and elasticity.

  • ✔ High tensile strength
  • ✔ Good chemical resistance
  • ✔ Recyclable & eco-friendly
  • ✔ Used in industrial dampers
Custom Molding Solutions

Custom Molding Solutions

Tailored ETPU parts for automotive, medical, and industrial use via precision molding.

  • ✔ OEM/ODM supported
  • ✔ Fast prototyping
  • ✔ High dimensional accuracy
  • ✔ Batch production capable
ETPU Packaging Foam

ETPU Packaging Foam

Sustainable, high-impact protection foam for electronics, medical devices, and luxury goods.

  • ✔ Shock absorption
  • ✔ Reusable & recyclable
  • ✔ Static-dissipative options
  • ✔ Custom die-cutting

Our Technology

Supercritical foaming and gas-phase differentiation for next-gen polymer foams.

Supercritical Foaming Process

Our proprietary engineering plastic foaming technology enables the creation of ultra-lightweight, microporous TPU foam materials.

  1. Gas (typically CO₂ or N₂) is diffused into solid TPU pellets under high pressure.
  2. Temperature and pressure changes trigger nucleation and expansion.
  3. Gas is trapped inside the polymer matrix, forming closed microcells.
  4. Cooling stabilizes the foam structure, resulting in resilient ETPU "popcorn" pellets.
Foaming Process

High Resilience

ETPU offers superior energy return, ideal for athletic footwear and impact protection.

Eco-Friendly

Non-toxic, recyclable, and produced with low environmental impact using supercritical CO₂.

Durable & Stable

Resistant to deformation, temperature extremes, and yellowing (Level 4 resistance).

Applications

From sports to safety, our ETPU materials empower innovation across industries.

Shoe Material

Shoe Material

Cloud-like cushioning for running, training, and lifestyle footwear with long-term durability.

Sport Protection

Sport Protection

Impact-absorbing pads for helmets, knee guards, and athletic gear with excellent rebound.

Car Filling

Car Filling

Lightweight, non-toxic interior padding for seats, dashboards, and door panels.

Furniture Filling

Furniture Filling

Supportive, shape-retaining cushioning for sofas, mattresses, and ergonomic chairs.

Infant & Child Protection

Infant & Child Protection

Safe, non-toxic padding for strollers, car seats, and play mats—designed for sensitive users.

Runway

Runway & Flooring

Non-slip, shock-absorbing surfaces for athletic tracks, gyms, and safety flooring.

10+
Years Innovation
50+
Global Clients
8
Product Lines
100%
Recyclable Options

Frequently Asked Questions

What is ETPU?

Expanded Thermoplastic Polyurethane (ETPU) is a lightweight, elastic foam material made by expanding TPU pellets using supercritical gas. It’s known for high resilience and durability.

Is ETPU eco-friendly?

Yes. Our ETPU is non-toxic, recyclable, and produced using environmentally responsible supercritical foaming technology without harmful chemical blowing agents.

What industries use your materials?

Our materials are used in footwear, automotive interiors, sports protection, furniture, infant products, and industrial packaging.

Can you customize ETPU density?

Yes. We offer customizable density, hardness, and color options to meet specific application requirements.

Do you support OEM/ODM?

Yes. We provide full OEM and ODM services, including custom molding, formulation, and packaging.

Get in Touch

Reach out to Huiyan Polymers for product inquiries, samples, or technical support.

Contact Information

Company: Huiyan Polymers (China) Co., Ltd.

Phone: +86-595-85167001

Fax: +86-595-85167002

Email: [email protected]

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