Blog-2-Henan Ankai New Materials Co., Ltd.

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Founded in 1999, Henan Ankai New Materials Co.,Ltd（LSAK Feldspar） is a comprehensive enterprise integrating scientific research, processing and production, import and export, etc. Our business scope involves sodium feldspar, refractory materials，glassfiber，ceramics and other industries.

Why Does “No Free Silica” Matter in Sodium Feldspar?
Oct,20,2026

In sodium feldspar applications, chemical composition is important—but mineral composition deserves equal attention. One factor that can be overlooked when evaluating sodium feldspar is free silica. While total SiO₂ content is a standard chemical specification, it does not tell the whole story of how silica occurs within the material. Total SiO₂ Is Not the Same as Free Silica Sodium feldspar, also known as albite, is a feldspar mineral with the ideal chemical formula NaAlSi₃O₈. In its crystal structure, silicon and aluminum are integrated with sodium, forming a mineral that serves as an important fluxing raw material in ceramic and glass manufacturing. However, a natural mineral deposit may also contain separate silica-bearing minerals, such as quartz. This distinction matters: silica chemically bound within feldspar is not the same as free quartz present as a separate mineral phase. A conventional chemical analysis may report the total SiO₂ content, but mineralogical analysis is needed to determine whether free quartz is present and in what amount. How Can Free Silica Affect Industrial Applications? The impact depends on the application, particle size, firing conditions and overall formulation. In ceramic bodies, glazes and glass batches, uncontrolled free quartz may affect several aspects of processing. 1. Melting...
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Why Feldspar Consistency Matters in Glass Fiber Manufacturing
Oct,16,2026

Stable-quality sodium feldspar has become a must-have for glass fiber manufacturers Over the past couple of years, the glass fiber industry has expanded a lot, but many plants have been privately complaining about the same issue: once the raw materials start fluctuating, the entire production line suffers. Sodium feldspar is one of the most critical links in that chain. In glass fiber formulations, sodium feldspar is more than just a simple flux. The sodium oxide it brings lowers the melting temperature, saving energy and reducing the need for soda ash. At the same time, the alumina it contains helps build a stronger glass network, resulting in fibers with higher strength and better corrosion resistance. More importantly, it melts relatively slowly and has a low tendency to crystallize, so it is less likely to suddenly precipitate crystals during fiber drawing and break the filaments. The real problem lies in the word “stable.” Tank furnace drawing is a continuous process that runs around the clock. If the Na₂O content in the sodium feldspar jumps up and down from one batch to the next, the iron content fluctuates, or the particle size varies, the furnace temperature has to be adjusted constantly and the...
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Innovative Application of Nepheline in Outdoor Silicone Waterproof Coatings
Oct,13,2026

Why Choose Nepheline Over Traditional Feldspar? Our nepheline products are available in three specifications—100 mesh, 200 mesh, and 325 mesh—effectively meeting the requirements of various coating systems regarding packing density, rheology, and film appearance. Coarser particles may offer better packing efficiency and cost savings, whereas finer particles contribute to a denser, smoother coating surface.
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Stable Supply （soda feldspar）Becomes Increasingly Important as Market Conditions Continue to Change
Oct,06,2026

We approach every stage with rigor—from the moment goods are loaded at the factory to their safe and accurate delivery to the customer. For us, supply chain stability is far more than a marketing slogan; it is embodied in every aspect of production monitoring, quality inspection, and shipment.
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Celebrating the 77th Anniversary of the Motherland with Reverence, Working Together for Prosperity(National Day)
Oct,01,2026

LSAK Feldspar supplies the following high-quality mineral raw materials: Sodium Feldspar: Suitable for ceramic body and glaze materials, glass fluxes, coating fillers, etc. Nepheline and Quartz: Suitable for glass, ceramics, plastics, and artificial stone industries Potassium Feldspar: Suitable for ceramics, glass, electrical porcelain, coatings, and other fields
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The Same Albite Powder — So Why Do Firing Results Differ So Much?
Sep,29,2026

Albite Powder: What Really Determines Its Performance Isn’t Just Chemical Composition — It’s the Temperature in the Kiln In the procurement stage of ceramic raw materials, buyers typically look at a few tables first: chemical composition, particle size distribution, whiteness, and the COA. These data points are certainly important — they’re the first threshold for screening suppliers. But for ceramic production, the more critical question is really: once it enters the kiln, how exactly does it melt? The same albite powder can produce entirely different final results across different firing temperature ranges. That’s why we don’t only provide paper parameters — we treat firing trials as part of the product documentation. Two Temperatures, Two Insights into Our Albite’s Firing Behavior 1130°C | Low-temperature firing — strong whiteness performance Even at a relatively low firing temperature, the product maintains good whiteness. This indicates that the albite begins to exert its fluxing effect within a lower temperature range, helping the body reach an effective sintering state more quickly. For production lines pursuing low-temperature, fast-firing processes, this directly affects energy consumption and throughput rhythm. 1200°C | Full firing — noticeably improved translucency As the temperature rises, the albite participates further in melting, liquid...
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Anyang City , Henan Province, China.

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