Zinc stearate is a white, hydrophobic fine powder widely used in plastic manufacturing as a mold release agent and external lubricant. Known for its thermal stability and lubricity, it helps improve melt flow and reduces sticking during molding or extrusion
1.Is zinc stearate suitable for food-grade plastics?
Food-compliant grades are available upon request for indirect food contact applications.
2.What’s the difference between zinc and calcium stearate?
Zinc stearate offers better mold release and thermal stability, while calcium stearate is often used for cost-effective lubrication.
3.Can zinc stearate be mixed with fillers and pigments?
Yes, it works as a dispersing agent and helps in achieving better mixing uniformity.
4.Will it affect transparency or color?
High-purity grades minimize any impact on transparency or light-colored formulations.
