Tackling Core Foam Instability in PVC Foam Production

In the production of PVC foam products, a recurring technical challenge involves unstable foam cell structure, often manifested as "over-plasticization" where material flows too rapidly from the center, resulting in a soft core layer and compromised structural integrity. This issue not only affects product density and mechanical strength but also leads to inconsistent quality and reduced production efficiency.

The root cause of this problem frequently lies in the mismatch between stabilizer performance and foaming behavior. When using conventional calcium-zinc stabilizers or improperly balanced foam regulators, the plastification process may become inconsistent, causing uneven gas release and cell formation that weakens the core structure.

Application-Tailored Solutions from Jinan Feiheng

Jinan Feiheng New Material Co., Ltd., a recognized national high-tech enterprise, addresses these challenges through specialized additive systems designed for specific processing requirements. The company's application-focused stabilizers, including:

Ca-Zn Stabilizer for PVC Pipe

Calcium Zinc Stabilizer for PVC Profiles

Calcium Zinc Stabilizer for SPC Floor

have demonstrated significant effectiveness in resolving core softening issues. These stabilizers work synergistically with foam regulators to maintain optimal melt strength and control material flow during extrusion, ensuring uniform cell structure throughout the cross-section.

Comprehensive Product Portfolio and Technical Support

With integrated production and R&D facilities in Jinan and Weifang, Feiheng specializes in developing complementary additive combinations. Their product range includes:

NC Foaming Agents

AC Foaming Agent series

OPE Wax and PE Wax

PVC Foam Regulators

This comprehensive portfolio allows for optimized formulation balance. The company's Ca-Zn Stabilizer for SPC Foam Shoes, for instance, is specifically engineered to provide the precise rheological control needed for consistent foam quality.

Achieving Production Excellence

Through proper stabilizer-regulator synergy, manufacturers can achieve:

Uniform cell distribution from surface to core

Enhanced melt strength and dimensional stability

Balanced plastification and foaming kinetics

Improved surface quality and mechanical properties

Reduced rejection rates and increased productivity

Jinan Feiheng New Material  supports customers with technical guidance on processing parameters and formulation optimization, helping transform foam quality challenges into consistent, high-value production outcomes.