WACKER® AK 12 500
SILICONE FLUID
Product description                                                                    - antifoam agent
                                                                                       - water-repellent agent
Structural formula:                                                                    - liquid dielectric for electrical and electronic
                                                                                        equipment
                                                                                       - polish additive
                                                                                       - plastics additive
                                                                                       - additive for textile and fiber auxiliaries
                                                                                       - damping medium
                                                                                        For pharmaceutical applications, we recommend
                                                                                       specialty silicone fluids from our SILFAR ® line.
                                                                                       Silicone fluids from our BELSIL ® line are available for
                                                                                       the cosmetic sector. Whenever particularly high heat
                                                                                       and shear resistance is required, we recommend
                                                                                       silicone fluids from our AK stab, AK visc and AKC
                                                                                       product lines.
                                                                                       Processing
WACKER® AK 12 500 is a linear, non-reactive
polydimethylsiloxane with a viscosity of                                               Due to WACKER® AK 12 500 many diverse
approx. 12 500 mm²/s. Due to its chemical structure,                                   applications, no general processing information can be
WACKER® AK 12 500 has an outstanding property                                          provided. Parameters will vary from application to
profile, which sets it apart from organic materials such                               application.
as mineral oils.
                                                                                        Available in a range of viscosities,
Properties                                                                             WACKER® SILICONE FLUIDS AK are miscible with
                                                                                       each other in any ratio. The standard product's
WACKER® AK 12 500 is a clear, odorless and                                             viscosity can thus be altered to suit your individual
colorless liquid.                                                                      needs.
                                                                                        WACKER® AK 12 500 is a non-polar liquid and is
Special features                                                                       immiscible with polar solvents such as water or short-
                                                                                       chain alcohols. In aliphatic and aromatic hydrocarbons,
- minimal change in physical properties over a broad                                   chlorohydrocarbons, ethers, esters, ketones and
 temperature range                                                                     higher alcohols, WACKER® AK 12 500 is soluble in
- excellent water-repellent properties                                                 any proportion.
- good dielectric properties                                                           Before the product is used with solvents for the first
- low surface tension and thus high surface activity                                   time, it is advisable to perform a lab-scale test.
- chemically highly unreactive                                                         When solvents are used, please remember to read the
- low solidifying point                                                                appropriate hazard information.
- high flash point
- high heat resistance
- good solubility in a wide range of solvents                                          Storage
                                                                                       Maximum temperature allowed during storage and
Application                                                                            transportation:
                                                                                       50 °C
- release agent                                                                        The 'Best use before end' date of each batch is shown
- lubricant                                                                            on the product label.
- hydraulic fluid
Technical data sheet for WACKER® AK 12 500 / Version: 1.3 / Date of last alteration: 06.11.2014                                                1/2
Storage beyond the date specified on the label does
not necessarily mean that the product is no longer                                               Safety notes
usable. In this case however, the properties required
for the intended use must be checked for quality                                                 Comprehensive instructions are given in the
assurance reasons.                                                                               corresponding Material Safety Data Sheets. They are
                                                                                                 available on request from WACKER subsidiaries or
                                                                                                 may be printed via WACKER web site
                                                                                                 http://www.wacker.com.
Product data
Typical general characteristics                                                                                Inspection Method         Value
Appearance                                                                                                                               colorless, clear
Viscosity, kinematic at 25 °C                                                                                  DIN 53019                 approx. 12500 mm²/s
Density at 25 °C                                                                                               DIN 51757                 approx. 0,97 g/cm³
Refractive index at 25 °C                                                                                                                approx. 1,404
Flash point                                                                                                    ISO 2592                  359 °C
Surface tension at 25 °C                                                                                                                 approx. 0,022 N/m
Ignition temperature (liquids)                                                                                 DIN 51794                 approx. 450 °C
These figures are only intended as a guide and should not be used in preparing specifications.
 The data presented in this medium are in accordance with the present state of our knowledge but                The management system       For technical, quality, or
 do not absolve the user from carefully checking all supplies immediately on receipt. We reserve the            has been certified          product safety questions,
 right to alter product constants within the scope of technical progress or new developments. The               according to                please contact:
 recommendations made in this medium should be checked by preliminary trials because of                         DIN EN ISO 9001 and
 conditions during processing over which we have no control, especially where other companies’                  DIN EN ISO 14001            Wacker Chemie AG
 raw materials are also being used. The information provided by us does not absolve the user from                                           Hanns-Seidel-Platz 4
 the obligation of investigating the possibility of infringement of third parties’ rights and, if necessary,    WACKER® is a trademark      81737 München, Germany
 clarifying the position. Recommendations for use do not constitute a warranty, either express or               of                          info.silicones@wacker.com
 implied, of the fitness or suitability of the product for a particular purpose.                                Wacker Chemie AG.
                                                                                                                                            www.wacker.com
Technical data sheet for WACKER® AK 12 500 / Version: 1.3 / Date of last alteration: 06.11.2014                                                                          2/2