Heat Stabilizers

Lead stabilizers (pipe)

Lead stabilizers were historically used in PVC pipe production for their excellent heat stabilization, cost-effectiveness, and long-term durability, ensuring optimal processing and performance in pressure pipes and sewer systems. However, due to lead’s toxicity and environmental hazards, these stabilizers have been largely replaced by safer alternatives like calcium-zinc (Ca/Zn) and organotin stabilizers, which meet modern regulatory standards (RoHS, NSF) while maintaining pipe strength, weatherability, and corrosion resistance for water and sanitation applications.

Lead stabilizers (wires & cables)

Lead stabilizers were traditionally used in PVC wires & cables formulations for their superior heat stability, electrical insulation properties, and cost efficiency in wire and cable coatings. However, due to lead's toxicity and environmental risks, they have been phased out under global regulations (RoHS, REACH), with modern alternatives like calcium-zinc (Ca/Zn) stabilizers and organotin compounds now dominating the market—providing comparable thermal protection, flame retardancy, and long-term flexibility while ensuring compliance with stringent safety standards for electrical applications.

Lead stabilizers (fittings)

Lead stabilizers were historically used in PVC fittings for their excellent heat stability, processability, and long-term durability in demanding applications. However, due to lead's toxicity and environmental concerns, these stabilizers have been largely replaced by safer alternatives like calcium-zinc (Ca/Zn) systems and organotin compounds, which comply with modern regulations (RoHS, REACH) while maintaining mechanical strength, dimensional stability, and weather resistance in pipe fittings, valves, and other PVC components.

Calcium-zinc stabilizers (pipe)

Calcium-zinc (Ca/Zn) stabilizers are environmentally friendly additives used in PVC pipe production, providing effective heat stabilization by neutralizing hydrochloric acid (HCl) released during processing. These lead-free stabilizers enhance the pipe's durability, weather resistance, and mechanical strength while meeting strict regulatory standards (RoHS, NSF) for safe drinking water applications. Offering excellent processability and long-term performance, Ca/Zn stabilizers have become the industry-standard replacement for toxic lead-based systems in pressure pipes, sewage systems, and other rigid PVC pipe applications.

Calcium-zinc stabilizers (profile)

Calcium-zinc (Ca/Zn) stabilizers are high-performance, eco-friendly additives specifically formulated for rigid PVC technical profiles, providing superior thermal stabilization by effectively neutralizing hydrochloric acid (HCl) during processing. These lead-free stabilizers enhance the mechanical properties, dimensional stability, and weather resistance of technical profiles used in construction (window/door systems, decking) and industrial applications. Compliant with REACH and RoHS regulations, Ca/Zn stabilizers offer excellent processability, UV resistance, and long-term durability while meeting stringent performance requirements for demanding technical profile applications.

Calcium-zinc stabilizers (soft compound)

Calcium-zinc (Ca/Zn) stabilizers are essential, non-toxic additives for soft PVC compounds, providing effective heat stabilization by neutralizing hydrochloric acid (HCl) while maintaining flexibility and processability. These eco-friendly stabilizers are widely used in cables, flooring, hoses, and synthetic leather, ensuring excellent thermal stability, UV resistance, and long-term durability without compromising the compound's softness or elongation properties. Compliant with REACH, RoHS, and FDA standards, Ca/Zn stabilizers offer a safe, high-performance alternative to traditional lead-based systems in flexible PVC applications.

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