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Highly stable anionic silicone emulsion with excellent shelf life under standard storage conditions.
Provides superior surface lubricity and slip enhancement in aqueous coating and treatment formulations.
Compatible with a broad range of water-based polymers, including acrylics, styrene-butadiene, and vinyl acetate copolymers.
Enables efficient migration to substrate surfaces without compromising film integrity or adhesion.
Low foaming profile suitable for high-shear processing and industrial roll-coating applications.
Textile finishing for soft hand feel, wrinkle resistance, and seam glide improvement.
Paper and board coatings to enhance surface smoothness, printability, and anti-blocking performance.
Leather finishing agents for improved grain flexibility and tactile softness.
Water-based inks and overprint varnishes to reduce friction and improve rub resistance.
Nonwoven fabric treatments for hydrophobicity control and process lubrication.
| Chemical Type | Dimethyl silicone polymer emulsion (anionic) |
| Product Form | Aqueous emulsion |
| Appearance | Opaque white liquid |
| pH (1% aqueous solution) | 6.0 – 7.5 |
| Solids Content (wt%) | 30 ± 1 |
| Viscosity (mPa·s, Brookfield RVT, spindle #3, 20 rpm, 25°C) | 200 – 800 |
| Particle Size (D50, nm) | 150 – 300 |
| Freeze-Thaw Stability | Stable after one cycle (-12°C for 16 h / 25°C for 8 h) |
Q1: What is the primary function of MEM-1491 in industrial formulations?
A: MEM-1491 is a stable anionic silicone emulsion designed to provide surface modification, lubricity, and anti-foaming performance in water-based systems—commonly used in textile auxiliaries, agrochemical adjuvants, and coatings where silicone functionality is needed without solvent use.
Q2: Is MEM-1491 compatible with cationic or high-salt formulations?
A: Due to its anionic nature, MEM-1491 may experience reduced stability or phase separation when directly mixed with strongly cationic agents or high concentrations of multivalent salts. Compatibility should be verified through small-scale testing under intended formulation conditions.
Q3: How should MEM-1491 be incorporated into a formulation to ensure optimal performance?
A: It is recommended to add MEM-1491 during the final stage of aqueous formulation, after pH adjustment and addition of major components. Gentle agitation is sufficient—avoid high-shear mixing that could destabilize the emulsion. Dosage typically depends on application requirements but generally ranges from 0.1% to 2% by weight of the total formulation.
Q4: Does MEM-1491 require special storage conditions?
A: Yes—store in original sealed containers at temperatures between 5°C and 35°C, away from freezing and prolonged exposure to direct sunlight. Avoid contamination and ensure lids are tightly closed after each use to maintain emulsion integrity and shelf life.
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