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Highly stable anionic silicone emulsion with excellent shelf life and freeze-thaw resistance.
Provides superior softness, smoothness, and hydrophobicity on textile and nonwoven substrates.
Low foaming and compatible with common anionic and nonionic additives in formulation systems.
Enables easy incorporation into aqueous-based finishing baths without pre-dilution or special handling.
Delivers durable performance after curing, maintaining functionality through multiple laundering cycles.
Textile softening and handle modification for cotton, polyester, and blended fabrics.
Hydrophobic finishing for technical textiles including workwear and outdoor apparel.
Nonwoven fabric treatment for wipes, medical gowns, and filtration media.
Leather surface conditioning to enhance suppleness and water repellency.
Coating additive for improving release properties and surface slip in paper and film applications.
| Chemical Type | Anionic polydimethylsiloxane (PDMS) emulsion |
| Product Form | Aqueous emulsion |
| Appearance | Opaque white to off-white liquid |
| Active Content (wt%) | 30 ± 1% |
| pH (1% aqueous solution) | 5.5 – 7.0 |
| Viscosity (mPa·s, Brookfield RVT, #3 spindle, 20 rpm) | 200 – 600 |
| Particle Size (D50, nm) | 150 – 300 |
| Primary Applications | Textile & nonwoven softening, hydrophobic finishing, leather conditioning |
Q1: What is the primary function of MEM-5009 in coating and ink formulations?
A: MEM-5009 is a non-ionic, anionic-stabilized silicone emulsion designed to provide surface tension reduction, improved substrate wetting, and enhanced leveling in water-based coatings, flexographic inks, and gravure inks. It helps minimize defects such as craters, orange peel, and pinholes without significantly affecting gloss or intercoat adhesion.
Q2: Is MEM-5009 compatible with common water-based polymer systems?
A: Yes, MEM-5009 demonstrates good compatibility with acrylics, styrene-acrylics, vinyl acetate copolymers, and polyurethane dispersions typically used in architectural, industrial, and packaging coatings. Compatibility testing under actual formulation conditions is recommended to confirm stability and performance.
Q3: How should MEM-5009 be incorporated into a formulation?
A: MEM-5009 is generally added during the let-down stage, after the main binder and pigments have been dispersed. It can be introduced directly or pre-diluted with water to ensure uniform distribution. Avoid high-shear mixing post-addition to prevent potential emulsion destabilization.
Q4: Does MEM-5009 contribute to foam control in formulations?
A: MEM-5009 is not specifically designed as a defoamer or antifoam agent. While it may exhibit mild foam-suppressing behavior due to its surface-active nature, dedicated defoamers are recommended for formulations where foam generation is a critical concern.
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E-mail: wangxingqiang@ericwchem.com
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