Starch ether
In the production of dry-mix building materials such as construction mortar and joint compound, many manufacturers encounter the following issues: poor water retention, leading to cracking after application; poor workability, making application difficult for workers; and insufficient strength in the finished product, resulting in powdering over time. The root cause of these problems often lies not in the quality of the cement or aggregates, but in the absence of a key functional additive—starch ether. Although used in small quantities, it can significantly improve the material’s workability and the quality of the final product.
Jiurunfa specializes in the research, development, and production of building material additives such as starch ether. Our products undergo rigorous performance testing and are validated through real-world construction site applications. Our starch ether offers excellent solubility and blends well with common admixtures like cellulose ether, without causing issues such as flocculation or caking. Products with different viscosity specifications can meet various formulation needs, allowing manufacturers to make flexible choices based on construction requirements and cost budgets without having to adjust the entire formulation system to accommodate specific raw materials.
The core function of starch ether is to improve the workability and water retention of mortar. It adsorbs moisture, reducing water loss during the drying process and allowing the cement more time to hydrate, thereby increasing the strength of the finished product. At the same time, it increases the mortar’s viscosity and lubricity, making the material easier to apply and spread while reducing application resistance. For applications requiring thin-layer application, starch ether also effectively prevents sagging and run-off, ensuring a smooth and uniform finish after application.
In practical applications, starch ether performs very consistently. Adding an appropriate amount of starch ether to wall putty makes application smoother, results in a finer surface after drying, and reduces the amount of sanding required; when used in tile adhesive, it extends the open time, giving workers more time to make adjustments and improving the quality of the installation; when added to masonry mortar and plastering mortar, it enhances workability and water retention, reducing the risk of hollow spots and cracking. Its practical benefits are evident in both residential and commercial construction projects.
In terms of use and storage, starch ether has straightforward requirements. It typically comes in the form of a white powder and can be uniformly mixed with other raw materials during dry-mix mortar production without requiring any special dosing procedures. When storing, ensure the container is sealed to prevent moisture and keep it in a cool, dry environment, away from direct sunlight and high temperatures. The product is not classified as a hazardous chemical, making transportation and warehousing relatively convenient. Each batch of product comes with a corresponding test report, and manufacturers can adjust formulations based on indicators such as viscosity and fineness listed in the report.
Jiurunfa has always been committed to providing customers with building material additives that offer stable performance and excellent value for money. Starch ether, one of our core products, has been widely used in various dry-mix building material formulations. We offer free sample testing and technical support to help customers identify the grade best suited for their specific formulations. If you are looking for additives to enhance the workability of your mortar, please visit the Jiurunfa website to learn more about our products, or contact us directly for a quote and technical solutions. Choose the right additive to ensure every batch of mortar achieves optimal performance.
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