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WACKER® AK 50 is a linear, non-reactive polydimethylsiloxane with a viscosity of approximately 50 mm²/s. Its unique chemical structure gives WACKER® AK 50 a remarkable set of properties that distinguish it from organic materials like mineral oils. These include low surface tension, resulting in high surface activity, exceptional chemical inertness, and a low solidifying point.

CAS Number: 9006-65-9

Functions: Anti-Foaming Agent, Lubricant, Polishing Agent, Release Agent, Solvent, Water Repellent

Chemical Family: Siloxanes

Product Type: Heat Transfer Fluid, Hydraulic Fluids

Certifications & Compliance: EC No.1907/2006, REACH Exempt (Europe)

Synonyms: Dimethicone

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CAS No.
9006-65-9
EC No.
618-433-4
Chemical Structure

WACKER® AK 50 - Chemical Structure

Features & Benefits

Labeling Claims

Applications & Uses

Home Care Applications
Application Details
  • Release agent
  • Lubricant
  • Hydraulic fluid
  • Antifoam agent
  • Water-repellent agent
  • Liquid dielectric for electrical and electronic equipment
  • Heat-transfer oil
  • Polish additive
  • Additive for textile and fiber auxiliaries

Processing

  • Due to WACKER AK 50 many diverse applications, no general processing information can be provided.
  • Parameters will vary from application to application.
  • Available in a range of viscosities, WACKER® SILICONE FLUIDS AK are miscible with each other in any ratio.
  • The standard product's viscosity can thus be altered to suit your individual needs.
  • WACKER® AK 50 is a non-polar liquid and is immiscible with polar solvents such as water or short-chain alcohols.
  • In aliphatic and aromatic hydrocarbons, chlorohydrocarbons, ethers, esters, ketones and higher alcohols, WACKER® AK 50 is soluble in any proportion.

Properties

Physical Form
Soluble in
Esters, Ketones, Ethers, Higher alcohols, Aliphatic and aromatic hydrocarbons, Chloro-hydrocarbons
Immiscible In
Water, Short-chain alcohols
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 25°C)0.96g/cm³
Flash Pointmin. 250 °CISO 2592
Kinematic Viscosity (at 25°C)approx. 50 mm²/sDIN 53019
Refractive Index (at 25°C)approx. 1.402
Surface Tensionapprox. 0.021 N/m
Properties
  • Minimal change in physical properties over a broad temperature range
  • Excellent water-repellent properties
  • Good dielectric properties
  • Low surface tension and thus high surface activity
  • Chemically highly unreactive
  • Low solidifying point
  • High flash point
  • High heat resistance
  • Good solubility in a wide range of solvents

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia
  • Europe
  • Latin America
  • Middle East
  • North America
  • Oceania