[Industry News] Within the precision machining of wafers, metals, and ceramics, the ultimate surface flatness often hinges on the "skeletal support" provided by abrasive particles in the slurry. As industries demand higher material removal rates without compromising surface roughness, conventional nano-scale silica sols frequently prove inadequate in load-bearing capacity and deposition speed. Striking the optimal balance between "large particle size" and "high colloidal stability" has thus become a pivotal challenge in upgrading high-end surface treatment materials. Addressing these dual demands for "efficiency and planarity," Anhui IOTA Silicone Oil Co., Ltd. (IOTA) officially launches its LS Series Large-Particle Silica Sol (LS30 to LS150). Breaking free from the limitations of monodisperse sizing, this series establishes a broad particle size gradient ranging from 30nm to 160nm. Leveraging precise size control and a stable colloidal architecture, it provides a more resilient material foundation for polishing slurry formulations and specialty coating applications. Six-Tier Sizing: Precision Matching Diverse Surface Requirements The LS Series disrupts the homogeneity of conventional silica sols by offering a "particle size matrix" spanning six specifications. Maintaining high solid content (30-50%) and low sodium levels (Na₂O ≤0.4%), it satisfies diverse shear force and filling demands across various operating conditions:

• LS30 (30-40 nm): The Fine Foundation – Premier Choice for Light-Load Precision. Ideal for initial polishing of precision wafers and soft metals requiring exceptional surface finish, providing delicate substrate support while preventing over-cutting.
• LS50 (50-60 nm): The Balanced Approach – Versatile for General Metals. Balancing removal rate and surface quality, it is widely adapted for intermediate polishing stages of common metals such as stainless steel and aluminum alloys.
• LS80 (80-90 nm): The Powerful Incision – Tackling Hard Alloys. Possessing superior mechanical load-bearing capacity, it targets the surface planarization of difficult-to-machine materials like cemented carbides and mold steels.
• LS100 (100-110 nm): High Deposition – Workhorse for Ceramic Polishing. Exhibiting excellent particle packing properties, it is suitable for high-efficiency mirror polishing of structural ceramics like alumina and zirconia, significantly boosting processing rates.
• LS120 (110-120 nm): Heavy-Duty Performance – Accelerating Rough Polishing. Enhancing rapid flattening of rough surfaces, it drastically shortens rough polishing cycles, thereby improving overall production line yield.
• LS150 (140-160 nm): Ultimate Planarization – Cornerstone for Specialty Coatings. Designed for scenarios demanding large particle presence, it serves not only in thick-film polishing of exotic materials but also extends to specialty functional coating preparations, imparting unique physical barrier properties.

Constant Core: Broad Compatibility & Flexible Customization IOTA maintains its core advantages of "high solids and low sodium control" within the LS Series. Across the lineup, SiO₂ content remains at 30-50%, Na₂O is strictly capped at ≤0.4%, and pH is stabilized at 9.5-10.5 (customizable within a 3-11 range). This design philosophy of "broad sizing with a stable core" ensures chemical stability within slurry systems even when switching between particle sizes. Coupled with a shelf life of ≥12 months, it significantly reduces warehousing and changeover costs. Surface Renaissance: Empowering the Aesthetics Revolution in Manufacturing Currently, the LS Series Large-Particle Silica Sol is deeply integrated into semiconductor wafer back-grinding, polishing of consumer electronics metal frames, and specialty anti-corrosion coatings. From nano-scale planarization to macro-scale surface texture, IOTA’s strategy of "graded particle sizing" assists downstream customers in finding the optimal equilibrium between "planarity" and "efficiency." Industry Expert Insight: Experts note that as consumer electronics and new energy vehicles impose stricter requirements on "mirror-like finishes" and "abrasion resistance," the market potential for large-particle silica sols is rapidly expanding. The launch of IOTA’s LS Series not only completes a critical piece of its particle size portfolio but also offers the surface treatment industry a more flexible solution through its "gradient sizing matrix." This milestone signifies that domestic silicon-based material enterprises are ascending to a new tier in the customization capabilities for high-end polishing and coating applications.