Dynasylan® F 8815

Dynasylan® F 8815 is a fluoroalkylfunctional water-borne oligosiloxane which acts as a surface modification agent on oxidic, carboxy- and hydroxyfunctional substrates for example ceramic, natural fibers like cotton or leather. Dynasylan® F 8815 is a yellowish, slightly turbid liquid. The product can be mixed with water to any desired concentration.

Principal: Evonik Corporation Silanes

Functions: Hydrophobic Agent, Oil Repellent, Surface Modifier, Surface Modifier, Water Repellent

Chemical Family: Fluoroalkyl Siloxanes

End Uses: Ceramics, Leather, Sol-Gel Systems, Textiles, Varnishes

Applicable Processes: Leather Hydrophobation

Labeling Claims: Conflict Minerals-free

Features: Water-based

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Enhanced TDS

Identification & Functionality

Features & Benefits

Industrial Additives Features
Labeling Claims

Applications & Uses

Applicable Processes
Coating End Applications
Compatible Substrates & Surfaces
Industrial Additives End Use
Markets
Applications
Product Applications

Dynasylan® F 8815 can be used in a great variety of applications, including:

  • Additive for sol-gel/hybrid systems
  • Modification of paints and varnishes
  • Hydrophobation of leather
  • Water- and oil-repellent, easy-to-clean treatment of textiles
Processing Information
  • Substrate surfaces need to be absolutely clean and degreased before treatment!
  • Dynasylan® F 8815 can be mixed with water in any proportion. Before using the product, it must be mixed thoroughly to homogenize it. The exact concentration required may slightly vary upon the desired application. A ready-to-use solution can be stored for several days.
  • Textiles such as cotton can be dipped in or sprayed with a 5-15 wt.-% aqueous solution of Dynasylan® F 8815. The dipping time, which corresponds to the reaction time, should be 0.5–10 minutes.
  • A good hydrophobic effect on leather can be obtained by polishing the Dynasylan® F 8815 on the material.
  • A thin polysiloxane coating is formed and its specific properties emerge within a few hours at room temperature. The crosslinking process can be accelerated by heating (80-150°C). Hydro- and oleophobic properties can be determined by measuring the static contact angle.

Properties

Physical Form
Product Reactivity

Dynasylan® F 8815 is a trifunctional organic compound. The reactive silanol groups can bind chemically to an inorganic substrate. Aminoalkyl-functional substituents provide solubility in water. The fluoroalkyl-functional groups impart an extremely low specific surface energy once the siloxane is homogeneously distributed on the substrate. Similar coatings with good hydro- and oleophobicity can be obtained with commercially available fluorocarbon compounds. A general advantage of Dynasylan® F 8815 is the ability to create a chemical bond to the substrate system. Subsequent horizontal crosslinking forms chemically, thermally, and mechanically stable coatings. Thus starting from very low concentrations, Dynasylan® F 8815 forms chemically, thermally, and mechanically stable coatings.

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000006
Principal

Storage & Handling

Storage Conditions

Dynasylan® F 8815 should be protected from freezing and temperatures above 40°C, the guaranteed shelf life is 1 year

Other

Appearance
Yellowish slightly turbid liquid
Color (SDS)
Yellow, orange, slightly turbid
Item Number
Miscible in (SDS)
Water
Odor (SDS)
Almost odorless
USA/DOT UN Number
Not Applicable
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life1.0 yryr
Physical Properties
ValueUnitsTest Method / Conditions
Boiling Point97.0 °C°CASTM D1120 at 101.3kPa
Density1.058 g/cm³g/cm³DIN 51757 at 20°C
Flash Pointmin. 90.0 °C°CEN 22719
Viscosity1.6 mPa.smPa.sAt 20°C
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)98.0 °C°CEC Method A4 at 101.3kPa
Density (SDS)1.058 g/cm³g/cm³DIN 51757 at 20°C
Freeze Point (SDS)-1.0 °C°CISO 3841:1997
Ignition Temperature (SDS)580.0 °C°CEC Method A15
Partition coefficient n-octanol/water (SDS)-1.8-OECD 107 n-Octanol/Water
Vapor Pressure (SDS)24.7 hPahPaat 20°C, static method
Viscosity (SDS)1.6 mPa.smPa.sAt 20°C
pH (SDS)4.0-at 20°C, 1000 g/L