PVC Ca/Zn Stabilizer (Special for Footwear)SD-CZ601-X

Model: SD-CZ601X

Application System: Flexible / Semi-rigid PVC, solid PVC sole, foamed PVC sole, PVC footwear compound pellets

1. Product Description

SD-CZ601X is an eco-friendly calcium-zinc composite heat stabilizer. It adopts calcium stearate and zinc stearate as primary stabilizing components, compounded with hydrotalcite-type anionic intercalation materials and a well-selected internal & external lubrication system. It is specially designed for plasticized PVC footwear systems, suitable for compounding & pelletizing, sole injection molding, upper calendering and other processing technologies. This product features excellent early colour retention and medium-to-long term thermal stability. Its balanced and controllable lubrication system delivers low risk of migration and blooming. It shows good compatibility with phthalate / non-phthalate plasticizers, inorganic fillers, foaming agents, organic pigments and colour masterbatches. In foamed formulations, it stabilizes the decomposition window to obtain fine and uniform cell structure, making it suitable for continuous footwear production.

2. Typical Technical Specifications

Note: The above are typical values and shall not be taken as minimum specifications. Indicators vary among different grades.

3. Recommended Dosage

Base: 100 phr PVC resin Recommended loading: 3.5 ~ 5.0 phr

• Standard solid sole formulation: 3.5～2 phr
• High calcium carbonate filled & foamed sole formulation: 4.2～0 phr Adjust according to plasticizer type, filler loading, processing equipment, line speed and colour requirements.

4. Processing Guidance

End Products: Solid PVC sole, foamed PVC sole, PVC footwear pellets, flexible and semi-rigid PVC shoe upper Processing Temperature Range: 150 ~ 175 ℃

Key Features: Excellent initial whiteness, graded balanced lubrication, good mould release property, low migration & blooming, sulphur stain resistance. Stable expansion ratio and fine uniform cells in foamed systems, low risk of surface fogging and migration during long-term storage.

5. Packaging, Storage and Shelf Life

Packing: 25 kg per bag, PP woven sack with PE inner liner

Storage Conditions: Store in cool, dry and ventilated warehouse. Protect from moisture, direct sunlight, acidic materials and strong oxidants. Reseal immediately after opening to prevent moisture absorption and caking.

Shelf Life: 12 months when stored properly with intact original packaging.

6. Safety, Health and Environmental Information

This product is non-hazardous. Avoid dust inhalation during handling; dust mask is recommended. In case of eye contact, flush thoroughly with plenty of clean water and seek medical attention. Separate SDS (Safety Data Sheet) is available upon request. RoHS, REACH and other compliance testing support is available.

Environmental Statement: Free of lead, cadmium, mercury, hexavalent chromium, PBBs and PBDEs.

7. Disclaimer

All data contained in this data sheet are typical reference values and do not constitute a legally binding quality warranty. Due to differences in customer formulations, raw material quality, processing equipment and process parameters, users must carry out formulation trials and production verification in advance to confirm suitability. The final performance of the product shall be determined by the user’s actual production conditions.