Description

Technical Parameters

Special note:

Appearance

White powder

Heating reduction %

≤25

Metal oxide %

≥20%

Melting range ℃

80-150

General instructions:

Packing

25kg/ bag

Storage

Regular storage

Processing

Valid for 2 years

Note

Store in cool, dry, ventilated warehouse, avoid rain, moisture. When stored, it must be away from fire and heat sources, avoid exposure to sunlight, and prohibit direct contact with acid and alkali or mixing.

Applications:

Developed for high-speed PVC extrusion and high filling, SZ-91 is a special calcium zinc stabilizer that stands out in the industry. It is mainly composed of calcium salts, zinc salts, lubricants, antioxidants, and other main raw materials, synthesized by special compounding technology, making it an excellent processing aid. The calcium zinc stabilizer is environmentally friendly and sulfur-resistant. SZ-91 stands out among many stabilizers, with its green and environmentally friendly characteristics being particularly prominent. It contains no heavy metal elements (lead, cadmium), and fully meets the latest environmental standards of various countries, such as the EU RHOS directive and the REACH directive. This makes it the first choice for many enterprises in an era where environmental requirements are increasingly strict.In the field of PVC window and door profiles, products using composite lead heat stabilizers are prone to contamination with sulfur and tin, leading to blackening. However, the calcium zinc stabilizer, being environmentally friendly and sulfur-resistant, does not have this problem. It can effectively resist sulfide pollution, ensuring the quality and appearance of the products. Meanwhile, the calcium zinc stabilizer SZ-91 also has good system switching characteristics. It can directly replace lead salts and organic tin stabilizers. Traditional composite lead heat stabilizers, when converted to organic tin stabilizers, can cause cross-contamination, blackening the products. However, the calcium zinc stabilizer, being environmentally friendly and sulfur-resistant, does not have this problem. It can be switched and mixed at will, providing great convenience for enterprises in their production.

Suitable for extrusion process.

It can replace organic tin.