At Ultra Limited for Industrial Development, our calcium carbonate products enhance the performance of polyvinyl chloride (PVC) by providing stiffness to the polymer matrix and improving impact resistance, particularly as particle sizes become smaller. In PVC compounding, calcium carbonate plays a critical role by improving the dispersion of ingredients within the PVC powder blend, ensuring homogeneity in polymer flow during processing.

The relationship between calcium carbonate particle size and the impact strength of rigid PVC parts is particularly significant in applications such as extruded pipes and injection-molded fittings. To optimize performance while maintaining cost efficiency, calcium carbonate helps reduce or eliminate the need for expensive ingredients like impact modifiers. For larger diameter pipes, a formulation with 2-3 micron calcium carbonate provides excellent impact resistance, while smaller diameter pipes typically require finer grades, ranging from 1-2 microns, to meet stricter impact specifications.

PVC pipes made with calcium carbonate demonstrate exceptional long-term performance benefits, including resistance to corrosion and leakage. Repairs are simpler and more cost-effective compared to traditional materials like cast iron or copper. These advantages, along with the durability and cost efficiency of PVC, make it a trusted choice for modern infrastructure.

At Ultra Limited, we offer a comprehensive range of both coated and uncoated calcium carbonate, specifically engineered to meet the demands of PVC piping and compounding applications. Our products are certified for plastics piping and deliver consistent quality across a wide range of formulations. Whether you require calcium carbonate for large-diameter pipes or finely-tuned solutions for smaller fittings, our portfolio ensures optimal performance tailored to your needs.

Ultra Limited’s calcium carbonate solutions not only reduce costs but also help manufacturers achieve reliable, high-quality PVC compounds that meet today’s demanding specifications for strength, durability, and ease of processing.