Product Overview
Ca/Zn Solid Powder PVC Stabilizer is an environmentally friendly and non-toxic stabilizer system developed for polyvinyl chloride (PVC) processing. The formulation is based on organic calcium and zinc salts, such as calcium stearate, zinc stearate, and calcium/zinc acetylacetonate, combined with highly efficient synergistic additives including β-diketones, pentaerythritol, and antioxidants.
This stabilizer system is designed to deliver excellent thermal stability, processing performance, and environmental compliance in a wide range of PVC applications.
Key advantages include:
Environmentally Friendly Formulation
Free from heavy metals such as lead, cadmium, barium, and tin, making it compliant with environmental standards such as EU RoHS and suitable for products requiring strict safety standards.
High Thermal Stability
Effectively inhibits initial discoloration of PVC during processing and enhances long-term thermal aging resistance.
Balanced Lubrication and Stability
Provides an optimized balance between thermal stabilization and lubrication, improving processing efficiency and product quality.
Wide Application Range
Suitable for both rigid and flexible PVC, including transparent films, foam products, and profiles, serving as an environmentally friendly alternative to traditional lead-based stabilizers.
Key Specification Parameters
Typical physical and technical characteristics include:
- Appearance: White or light yellow powder
- Chemical Composition: Calcium-zinc complex with organic synergistic additives
- Heavy Metals: Free from lead, cadmium, barium, and tin
- Volatility: ≤ 1.0%
- Melting Point Range: 80 – 150°C (depending on formulation)
- Moisture Content: ≤ 0.5%
- Particle Size: Fine, uniform powder (typically 100–200 mesh)
- Compatibility: Excellent compatibility with PVC resin, plasticizers, lubricants, and other additives
These properties allow the stabilizer to disperse easily in PVC formulations and maintain stable processing performance.
Main Application Areas
Food Packaging
Used in PVC food packaging films, containers, and bottle caps, where environmentally friendly stabilizers are required to meet food safety regulations such as FDA or EU food contact standards.
Wires and Cables
Applied in PVC cable insulation and jacket compounds, providing:
- Reliable thermal stability
- Improved weather resistance
- Stable electrical insulation performance
Construction and Building Materials
Widely used in rigid PVC construction materials, including:
- PVC pipes and fittings
- Window and door profiles
- Foam boards and sheets
- LVT flooring and decorative wall panels
The stabilizer enhances durability, UV resistance, and long-term material stability.
Other PVC Applications
Suitable for environmentally conscious products such as:
- Toys
- Stationery
- Automotive interior components
- Household PVC products
These applications benefit from the stabilizer’s low toxicity and long-term durability.
Packaging and Storage
Packaging
Standard packaging options include:
- 25 kg kraft paper bags with moisture-proof inner lining
Custom packaging sizes such as 15 kg or 20 kg bags can also be provided upon request.
Storage Conditions
To maintain product quality:
- Store in a cool, dry, and well-ventilated environment
- Avoid direct sunlight exposure
- Recommended conditions:
- Temperature: below 35°C
- Relative Humidity: below 60%
Shelf Life
- 12 months under recommended storage conditions.
After opening, the packaging should be properly resealed to prevent moisture absorption and maintain product performance.
