ULTRA-SOFT. HIGHER MELT POINT. SUPERIOR PROCESSING STABILITY. Engineered to deliver exceptional softness with higher thermal resistance, IUS-4065 is the ideal solution for applications requiring comfort, dimensional stability, and manufacturing reliability.

Problem & Solution WorkflowTHE CHALLENGE： Low melt point leads to secondary thermal shrinkage during lamination.

• THE CAUSE： Processing temperature > 50 °C causes material to shrink or deform.

• THE SOLUTION： IUS-4065 with higher melt point withstands processing temperature.

• THE BENEFIT： Better dimensional stability, higher yield, and consistent appearance.

3. Why Choose IUS-4065?

Many ultra-soft formulations rely on TAFMER or ENGAGE series POE to achieve low hardness, but these systems often come with issues such as high shrinkage and deformation.

IUS-4065 provides a better solution—combining ultra-soft hardness with a higher melt point to ensure both comfort and processing excellence.

• Low Melt Point Materials (DF 640 / ENGAGE 8842):

  • Lamination / Post-Processing Temperature: > 50 °C

  • High risk of secondary shrinkage, warpage and inconsistent appearance.

• IUS-4065 (~ 64 °C):

  • Higher thermal resistance during processing.

  • Excellent dimensional stability, consistent quality, and higher yield.

4. Key Advantages of IUS-4065

Ultra-Soft Hardness: Shore A 40 for premium comfort and flexibility.

• Higher Melt Point: ~ 64 °C to resist secondary thermal shrinkage.

• Dimensional Stability: Excellent resistance to shrinkage and deformation.

• Higher Yield & Consistency: Improved process stability and production yield.

• Ideal for High-Performance Applications: Perfect for foamed and injection-molded products.

IUS-4065 delivers the perfect balance of softness, thermal resistance, and processing stability—empowering your products with comfort, quality, and reliability.