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Pioneering innovation and Excellence in Speciality Additives

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Calcium-Zinc (Ca-Zn) PVC Heat Stabilizers

Calcium-Zinc (Ca-Zn) stabilizers are advanced, non-toxic, heavy-metal-free additives specifically designed to replace lead-based and other conventional stabilizers in PVC processing. They combine excellent thermal stability, weather resistance, and processing performance while meeting stringent environmental and regulatory requirements.

Pratham Group develops Ca-Zn stabilizers with a focus on consistency, reliability, and adaptability across a wide range of PVC applications. These stabilizers ensure superior initial color, long-term stability, and compatibility with multiple processing technologies, making them an optimal choice for both rigid and flexible PVC formulations.

Key Properties

Lead-free, non-toxic, and environmentally sustainable
Excellent thermal stability and resistance to UV degradation
Outstanding initial color retention and long-term performance
High processing efficiency with broad application versatility
Suitable for rigid and flexible PVC systems
Compliant with global regulations including RoHS and REACH

Physical Properties
Product	Ca-Zn PVC heat stabilizer (ECF STAB_SERIES)
Appearance	Powder
Volatile Loss (%)	≤0.80 %
Bulk density (g/ml) @ 25 °C	0.45 ± 0.08

Ca-Zn PVC Heat stabilizer applications.

Calcium-Zinc (Ca-Zn) PVC heat stabilizers are utilized in the following applications i.e. Rigid PVC, Flexible PVC, UPVC, CPVC, and WPC products.

PVC Rigid Pipes
PVC injection moulded Pipe’s fitting
PVC flexible Garden
Pipe PVC Suction hose Pipe
CPVC and UPVC Pipe and fitting
Flexible PVC calendaring sheet
Flexible PVC Blown film
PVC Windows and
Door Profiles PVC Conduits, Ducts and Channels
PVC Door Sheet
Wood-PVC Composites
Flexible PVC Geomembrane & sheet
PVC Insulation and sheathing for Wires/cables
Different PVC Compounds and blends
PVC Flooring sheet
PVC Synthetic leathers
PVC medical tubes and moulded products
PVC Foam boards
PVC Shoe sole
TPR Compounds.

Our Ca-Zn PVC Heat stabilizer grades for PVC different product applications

Ca-Zn Heat Stabilizer (ECF STAB) – for Wires & Cables Insulation & Sheathing

Grades	Application	Attributes
ECF STAB 1900 Series	Flexible PVC Insulation/Sheathing (70 - 90 0C Service Temperature)	Initial colour hold, Good thermal stability and Light stability
ECF STAB 1901 Series	FR/FRLS PVC Insulation/Sheathing	Better thermal stability and Light stability
ECF STAB 1902 Series	Flexible PVC Sheathing	High thermal stability and Good cost-effectiveness
ECF STAB 1903 Series	(70 - 90 0C Service Temperature)	Initial colour hold and Better thermal stability
ECF STAB 2000 Series	Flexible PVC Insulation/Sheathing	Better initial colour hold, Long-term stability, Suitable for FR/FRLS application and HT insulation
ECF STAB 2001 Series	(90 - 105 0C Service Temperature)	Initial colour hold & better thermal stability
ECF STAB 2003 Series	(105 - 125 0C PVC Insulation/Sheathing)	Colour hold stability, Good thermal stability and IR

Ca-Zn Heat Stabilizer (ECF STAB) – for Rigid PVC Pipes & Hose Pipes

Grades	Application	Attributes
ECF STAB 2200 Series	Plumbing, Column, Casing Pipes	Better initial colour hold stability, Processability, High thermal stability and Balanced flow property
2 ECF STAB 2206 Series	Pressure, Conduits and SWR Pipes	Good thermal stability and Light stability
ECF STAB 2201R/2202F Series	Suction Hose Pipes (Rigid/Flex)	Balanced flow for single/Twin-screw extruder

Ca-Zn Heat Stabilizer (ECF STAB) – for Rigid PVC Windows/Doors profile & Foam boards

Grades	Application	Attributes
ECF STAB 2200 Series	Plumbing, Column, Casing Pipes	Better initial colour hold stability, Processability, High thermal stability and Balanced flow property
2 ECF STAB 2206 Series	Pressure, Conduits and SWR Pipes	Good thermal stability and Light stability
ECF STAB 2201R/2202F Series	Suction Hose Pipes (Rigid/Flex)	Balanced flow for single/Twin-screw extruder

Ca-Zn Heat Stabilizer (ECF STAB) – for Flexible Products i.e., Flexible Tubing and Films

Grades	Application	Attributes
ECF STAB 4401 Series	Flexible Tubes, Film, Cables Sheath, Hoses, PVC Leather & Medical Comp.	Better colour holds stability with clarity
ECF STAB 4402 Series	Flexible Tubes, Film, Cables Sheath, Hoses, PVC Leather & Medical Comp.	Initial colour hold with good clarity, & cost effective
ECF STAB 4403 Series	Semi-Flexible /Semi-Rigid Product	High heat stability & outstanding colour hold stability.

Ca-Zn Heat Stabilizer (ECF STAB) – for Rigid PVC injection moulded fittings

Grades	Application	Attributes
ECF STAB 6601 Series	Rigid Injection moulded Fittings	Good colour hold stability with balanced flow properties
ECF STAB 6603 Series	Rigid Injection moulded Fittings	Good heat stability and Cost-effective with Tin Stabilizer.

Ca-Zn Heat Stabilizer (ECF STAB) – Rigid & Flexible PVC Opaque and Other Products

Grades	Application	Attributes
ECF STAB 5501 Series	Flexible Profiles, Sheets and Shoe Soles	Good processability, Initial colour hold and heat stability
ECF STAB 5507 Series	Rigid Channels, Angles, Flooring, tiles	Good Initial colour hold, balanced flow and heat Stability