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

DOW DOWSIL FZ-5609 Fluid

DOW DOWSIL FZ-5609 Fluid is a high-purity, low-viscosity silicone fluid from Dow’s DOWSIL™ specialty silicones portfolio. Designed for precision applications like electronic encapsulation and thermal interface materials, it offers excellent thermal stability, dielectric properties, and compatibility with sensitive substrates. Its controlled volatility and consistent molecular weight ensure reliable performance in demanding industrial processes.
  • dow dowsil fz 5609 fluid_1ab20302
  • dow dowsil fz 5609 fluid_1ab20302

Features Of DOW DOWSIL FZ-5609 Fluid

  1. Highly stable, low-viscosity silicone fluid with excellent thermal and oxidative resistance.

  2. Non-volatile and non-yellowing, ensuring long-term clarity and performance in optical and electronic assemblies.

  3. Low surface tension and superior wetting characteristics for uniform coating and interfacial coverage.

  4. Compatible with common elastomers, plastics, and metals—enabling broad material integration.

  5. Meets RoHS and REACH compliance requirements for restricted substances.

Typical Applications Of DOW DOWSIL FZ-5609 Fluid

  1. Optical bonding and lens filling in LED lighting and display modules.

  2. Dielectric cooling fluid for power electronics and high-density PCB thermal management.

  3. Encapsulation medium for sensitive sensors and MEMS devices requiring refractive index matching.

  4. Release agent and surface modifier in precision molding of silicone and thermoplastic parts.

  5. Base fluid in formulated thermal interface materials (TIMs) and dielectric greases.

Specifications Of DOW DOWSIL FZ-5609 Fluid

Chemical TypeLinear polydimethylsiloxane (PDMS)
Product FormClear, colorless liquid
AppearanceTransparent, odorless liquid
Viscosity (25°C, cSt)5,000 ± 500
Density (25°C, g/cm³)0.96–0.98
Refractive Index (25°C, nD)1.402–1.406
Flash Point (COC, °C)>300
Key FeaturesThermally stable, electrically insulating, hydrophobic, non-reactive


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *