Calcium carbonate precipitated (PCC)

Description

Product Overview
Precipitated Calcium Carbonate (PCC) is a synthetic, high-purity calcium carbonate manufactured via controlled carbonation, yielding uniform particle size and crystal morphology. It serves critical functions as a functional filler, extender, and rheology modifier in plastics, paints, paper, adhesives, and sealants. The key value proposition lies in its ability to enhance whiteness, opacity, stiffness, and processing efficiency while reducing compound costs. Strategically, PCC enables manufacturers to replace more expensive raw materials and achieve sustainable lightweighting without mechanical or optical property loss.

Key Specifications & Technical Characteristics

• Chemical composition: CaCO₃ ≥ 98.5%, low MgO, Fe₂O₃, and acid-insoluble content

• Purity level: Industrial grade / High-brightness grade (ISO 3262)

• Physical characteristics: White microcrystalline powder; mean particle size (d50): 0.7–3.0 µm (tailored); specific gravity: 2.7 g/cm³; tapped density: 0.5–0.7 g/cm³; whiteness (CIE): 94–97%

• Packaging options: 25 kg multi-wall paper bags; 1 MT big bags; pneumatic tanker bulk delivery

• Shelf life: 24 months when stored in dry, sealed conditions (≤ 75% RH)

Core Industrial Applications

• Plastics & compounds: Filler in PVC pipes, profiles, cables, and masterbatches – improves impact strength, surface finish, and extrusion throughput vs. ground calcium carbonate (GCC).

• Paints & coatings: Extender for water-based and solvent-borne architectural paints – enhances hiding power, matting, and scrub resistance at lower TiO₂ substitution rates.

• Paper industry: Coating and filler pigment for printing/writing papers – delivers higher brightness, opacity, and ink gloss than kaolin or GCC.

• Adhesives & sealants: Rheology modifier in silicone, PU, and acrylic systems – enables thixotropy and reduces slump at lower loadings due to controlled particle shape.

Competitive Advantages

• Quality consistency: SPC-controlled production with ISO 9001:2025 certification; < 2% lot-to-lot CV in particle size and brightness.

• Supply reliability: Dual manufacturing sites + safety stock buffer; 98.5% on-time-in-full (OTIF) rate for global contracts.

• Logistics capability: Export-ready to 50+ countries; bagged, big-bag, or pneumatic bulk trailer options with real-time tracking.

• Price competitiveness: Vertically integrated from high-grade limestone quarrying to carbonation; avoids rare earth additives.

• Sustainability benefit: Carbon neutral option available via mass-balance renewable energy and dry-process classification reducing water use by 40% vs. conventional PCC.

Commercial & Supply Information

• Minimum order quantity (MOQ): 20 MT (bulk)

• Loading capacity: 25 MT per 20’ dry container (bagged), 22 MT per 20’ high-cube container (big bags)