Calcium-zinc stabilizer VS Lead salt stabilizer

The core difference between Calcium-zinc stabilizers and Lead salt stabilizers lies in their environmental friendliness and toxicity. The former is non-toxic and meets environmental standards, while the latter contains lead and poses a risk of toxic pollution. In addition, there are also differences between the two in terms of thermal stability, application fields and prices. ‌

1. Environmental friendliness

Calcium-zinc stabilizers: It is a green and environmentally friendly product, free of harmful substances and in line with national environmental protection standards. It is free of heavy metals such as lead and cadmium and meets EU environmental standards such as RHOS and REACH. It can replace toxic stabilizers such as lead salt stabilizers and effectively reduce environmental pollution ‌. It is applicable to fields with high safety requirements such as food packaging and medical devices. There is no risk of dust toxicity during the production and use process, making it more friendly to human health and the environment.

Lead salt stabilizers ‌ : Contain heavy metals such as lead, which are harmful to human health and the environment. In particular, long-term use may pose health risks ‌

2.Thermal stability and Performance

Calcium-zinc stabilizers: It has excellent thermal stability and can maintain the stability of plastic materials at high temperatures, preventing decomposition and degradation. Although its long-term thermal stability is slightly inferior to that of lead salt stabilizers, it performs well in processing ‌. Through the composite process (the synergistic effect of calcium salt and zinc salt), the thermal stability is close to that of lead salt, which can meet the processing requirements of most PVC.

Lead salt stabilizers: Wtih excellent thermal stability, especially in long-term use, can absorb HCl, prevent plastic material degradation. It performs stably especially at high temperatures or during long-term processing.

Calcium-zinc stabilizers have better light stability and transparency, and the appearance of the products is better. Excellent Performance in plastic processing , good processing performance and switching adaptability, no cross-contamination with other heat stabilizers ‌

Lead salt stabilizers have excellent electrical insulation and are inexpensive, and are often used in fields with high requirements for electrical performance, such as wires and cables. Good processing PERFORMANCE, SUITABLE for various processes, but there is risk of cross-contamination ‌

3.‌ Application‌ :

Calcium-zinc stabilizers: Mainly used in fields such as food packaging, medical devices, and environmentally friendly building materials. Widely used in polyvinyl chloride (PVC) resin products can improve transparency, tinting strength and light stability ‌.

Lead salt stabilizers: Due to toxicity limitations, they have gradually been phased out, but they are still used in some low-end industrial products. Mainly USED in situations requiring high thermal stability and electrical insulation, such as wires, cables, plastic products, etc. Youdaoplaceholder0

Usage defects and challenges

After calcium-zinc stabilizers replace lead salts, problems such as unstable initial color and precipitation may occur, which need to be solved by adjusting the formula.

The dust management of lead salt stabilizers is difficult, which is prone to cause environmental pollution in production and pose health risks to operators.