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IOTA 1291 is a polyether-modified polydimethylsiloxane specialty silicone surfactant, featuring both hydrophilic polyether segments and hydrophobic polysiloxane segments in its molecular structure – a high-performance amphiphilic polymer. It offers low surface tension, good hydrophilicity, antistatic properties, softness, smoothness, and breathability. Easily soluble in ethanol and acetone, and fully miscible with water in any ratio, with 100% active content for convenient use.
| Parameter | Specification |
|---|---|
| Appearance | Colorless to light yellow transparent liquid |
| Specific gravity (25°C) | 1.030 |
| Viscosity (25°C, cSt) | 500–1500 |
| Refractive index (25°C) | 1.448–1.458 |
| Cloud point (1% aqueous solution) | 42°C |
| Water solubility | Fully miscible with water |
| Surface tension (25°C, mN/m) | 23 |
| Active content | 100% |
✅ Low surface tension (23 mN/m) – excellent wetting, spreading, and penetration
✅ Fully water-soluble – miscible with water in any ratio for convenient use
✅ Softness & smoothness – imparts soft and smooth hand feel to treated substrates
✅ Antistatic properties – effectively inhibits static charge accumulation
✅ Good breathability – forms a uniform, breathable protective film
✅ 100% active content – undiluted, low dosage, significant effect
✅ Broad solvent compatibility – soluble in ethanol, acetone, and other organic solvents
1. Fabric Finishing Agent
Finished fabrics exhibit softness, smoothness, comfortable hand feel, crisp texture, and good dimensional stability – suitable for various textile post-finishing processes.
2. Cosmetic Additive
With good water solubility and surface activity, it forms a uniform, breathable protective film on skin or hair, leaving skin soft and smooth, and providing excellent wet/dry combability for hair.
3. Leather Auxiliary
A key component of leather smoothing agents and coating finishes in the tanning industry, imparting smooth, glossy, soft, and comfortable hand feel to various leather surfaces.
4. Waterborne Coatings, Inks & Adhesives
Added to waterborne coatings, acrylic adhesives, and inks, it improves system flowability, resulting in level, glossy, and aesthetically pleasing surfaces.
✅ 100% active content – cost-effective
✅ Fully water-miscible – easy to use
✅ Low surface tension – excellent wetting and spreading
✅ Multi-functional – softness, smoothness, antistatic, and breathability
✅ Versatile – suitable for textiles, cosmetics, leather, coatings, inks, and adhesives
For samples, formulation recommendations, or technical support, please feel free to contact us.
