Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

DOWSIL FZ-4634 EX Amino Silicone Emulsion

DOWSIL FZ-4634 EX Amino Silicone Emulsion is a high-performance cationic amino-functional silicone emulsion from Dow’s DOWSIL™ portfolio. Designed for textile softening and hydrophobic finishing, it delivers exceptional smoothness, lubricity, and fabric handle enhancement. Compatible with various fiber types, it offers stable emulsion performance, easy application, and excellent wash durability—ideal for industrial textile treatment processes requiring premium silicone-based functionality.
  • dowsil fz 4634 ex amino silicone emulsion_e5e03a22
  • dowsil fz 4634 ex amino silicone emulsion_e5e03a22

Features Of DOWSIL FZ-4634 EX Amino Silicone Emulsion

  1. Highly reactive amino-functional silicone with excellent cationic affinity for anionic substrates.

  2. Stable, low-viscosity oil-in-water emulsion optimized for easy handling and broad compatibility in aqueous systems.

  3. Delivers superior softness, smoothness, and anti-static performance on textile and nonwoven fibers.

  4. Enables durable hydrophobicity and improved wrinkle resistance without compromising breathability.

  5. Designed for low-temperature curing and efficient fixation during standard pad-dry-cure processes.

Typical Applications Of DOWSIL FZ-4634 EX Amino Silicone Emulsion

  1. Cotton, polyester, and blended fabric finishing for apparel and home textiles.

  2. Nonwoven treatment in hygiene products (e.g., wipes, sanitary liners) to enhance softness and drape.

  3. Technical textiles requiring static control and surface lubricity, such as filtration media and geotextiles.

  4. Industrial coating additives for improving substrate wetting and interfacial adhesion in waterborne systems.

Specifications Of DOWSIL FZ-4634 EX Amino Silicone Emulsion

Chemical TypeAmino-functional polydimethylsiloxane (PDMS) emulsion
Product FormOil-in-water emulsion
AppearanceOpaque white to off-white liquid
pH (1% aqueous solution)5.0 – 6.5
Active Content34.0 – 36.0 wt%
Viscosity (25°C, Brookfield LVT, Spindle #3, 6 rpm)500 – 2,500 cP
Particle Size (D50)0.1 – 0.5 µm
Free Amine Value0.15 – 0.25 meq/g


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