
STD9401 Modified cellulose ether for gypsum base
We specialize in providing high-quality STD9401 Modified cellulose ether for gypsum base for industrial clients across various sectors. Whether you need chemicals consultation, technical support, or detailed information about our production capabilities, our team is here to help.
Category:Paint chemicals
Introduction
It is a product designed specifically for hand plastered gypsum. It provides good water retention at low additive levels, while at the same time providing good anti-sagging properties for plasters.
Introduction
STD9401 is a modified cellulose ether specifically designed for gypsum-based applications. This additive enhances the performance of gypsum products by improving water retention, workability, and adhesion while maintaining optimal setting characteristics. Below are three technical tables summarizing its key properties, performance benefits, and recommended dosage ranges.
Key Physical and Chemical Properties
Property | Value/Range | Test Method |
---|---|---|
Appearance | White to off-white powder | Visual inspection |
Moisture content (%) | ≤ 5.0 | ASTM D7191 |
Viscosity (2% solution, mPa·s) | 10.000 – 50.000 | Brookfield LV, 20°C |
pH (1% solution) | 6.0 – 8.5 | ASTM E70 |
Bulk density (g/cm³) | 0.30 – 0.50 | ISO 697 |
Performance Benefits in Gypsum-Based Systems
Performance Aspect | Effect of STD9401 |
---|---|
Water retention | Improves significantly, reducing cracking |
Workability | Enhances spreadability and smoothness |
Open time | Extends for better application |
Adhesion | Strengthens bond to substrates |
Setting time | Adjustable with minimal retardation |
Recommended Dosage for Different Applications
Application | Dosage Range (% by weight of gypsum) |
---|---|
Gypsum plaster | 0.1 – 0.3 |
Joint compounds | 0.2 – 0.5 |
Self-leveling underlayments | 0.05 – 0.2 |
Tile adhesives | 0.3 – 0.6 |
Conclusion
STD9401 modified cellulose ether is a versatile additive for gypsum-based formulations, offering balanced viscosity, water retention, and workability. Its optimized performance makes it suitable for a wide range of construction applications.
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