Coating grade sodium alginate

1. Product Introduction

Coating-grade sodium alginate is modified industrially using ethylenediamine as a crosslinking agent or through etherification reaction with cellulose, followed by drying, crushing, sieving, and spraying to obtain modified sodium alginate powder. Its 1~2% aqueous solution exhibits excellent lubricity, stability, solubility, permeability, and viscosity. Modified sodium alginate is widely used in the building materials field (real stone paint, putty powder, coatings, adhesives, rendering mortar, gypsum plaster, etc.), and its superior workability is unmatched by other current building material additives.

This product is non-toxic. When applied in environmentally friendly coatings, even volatile substances are harmless to the human body. It appears as white to light yellow amorphous powder, odorless, tasteless, and insoluble in water. Incorporation into environmentally friendly coatings ensures more stable forming and better appearance after application, achieving long-lasting decorative effects.

2. Application in Water-Based Coatings

Add at a ratio of 2~3‰ (0.2~0.3%) during water-based coating production to achieve the following advantages:

1> Improve the color stability of coatings.

2> Excellent suspension property.

3> Enhance adhesion.

4> Improve water resistance, freeze-thaw resistance, and weather resistance.

5> Completely improve the workability of coatings.

3. Application in Interior & Exterior Wall Putty Powder

Add at a ratio of 1~1.5‰ (0.1~0.15%) during interior and exterior wall putty powder production to achieve the following advantages:

1> Completely improve the scraping smoothness and thixotropy of putty powder.

2> Enhance the water resistance of putty powder.

3> Anti-cracking.

4> Strengthen adhesion.

5> Replace the equivalent amount of latex powder.