ShinEtsu KFZ-318 are chemically inactive, have very low surface tension and provide good water repellency, releasability, and lubrication. Thus, silicones are also commonly used as fiber and fabric processing agents. They are used to treat natural and synthetic fibers or fabrics to make them water repellent or waterproof, to impart flexibility, and are commonly used to improve the texture and sewability of textile goods, resulting in higher grade and more functional products.

• Soft Touch Enhancement - ShinEtsu KFZ-318 delivers a smooth, silky hand feel supported by its viscosity range of approximately 100–300 mm²/s at 25°C, enabling controlled deposition on fibers. This rheology ensures uniform application even on dense synthetic fibers and blends. The agent produces a stable softness profile that remains consistent across cotton, polyester, and blended materials.

  
  

• High Emulsifiability - KFZ-318 forms stable emulsions under typical textile finishing shear conditions due to its amino-modified PDMS structure, which maintains dispersion stability at processing temperatures above 50°C. Its emulsification efficiency allows uniform penetration into fiber assemblies and supports consistent finishing results.

  
  

• Durable Hydrophobicity - KFZ-318 imparts long-lasting water repellency supported by its specific gravity of about 0.98, enabling controlled film formation on fiber surfaces. This hydrophobic layer maintains function after heat drying, enhancing moisture protection while preserving fabric breathability.

  
  

• Thermal Stability - ShinEtsu KFZ-318 maintains performance through high-temperature drying and curing cycles, supported by a refractive index near 1.402 that reflects stable molecular structure at elevated temperatures. This stability ensures reliable finishing in industrial lines operating above 120°C.

  
  

• Wash Durability - KFZ-318 retains softness and surface effects through repeated laundering cycles due to strong amino-fiber interactions. Its finishing performance remains stable even after multiple wash cycles, providing long-term tactile benefits and reducing re-processing requirements for manufacturers.

• Textile Finishing - KFZ-318 is widely used in textile finishing to produce a silky, premium hand feel across cotton, polyester, and blended fabrics. Its viscosity range of 100–300 mm²/s allows controlled formulation in finishing baths, supporting uniform softness in high-volume processing.

  
  

• Denim Treatment - KFZ-318 is effective in denim processing where deeper fiber penetration is required to achieve softness without flattening the fabric structure. Its stable emulsifiability ensures consistent deposition during stonewash or enzyme processes.

  
  

• Wool & Synthetic Blends - KFZ-318 enhances tactile comfort in wool-blend and fully synthetic fabrics by improving smoothness at low dosages, ensuring compatibility with treatments requiring soft but breathable finishes.

  
  

• Luxury Apparel - KFZ-318 is suited for high-grade apparel finishing where long-lasting softness and wash durability are essential. Its hydrophobic film supports premium garment feel while maintaining appearance through repeated wear.

  
  

• Automotive Interiors - KFZ-318 is used in automotive textile applications to improve softness and touch perception on seat fabrics, headliners, and interior panels, benefiting from its heat-stable and wash-resistant performance during vehicle use.