Andisil® 6920 Silane

1 of 500 products in this brand
Andisil® 6920 Silane is a bifunctional, sulfur-containing organosilane used in combination with white fillers that contain silanol groups for rubber applications.

Chemical Name: Bis(triethoxysilylpropyl) disulfide

Functions: Adhesion Promoter, Coupling Agent, Crosslinking Agent

CAS Number: 56706-10-6

Chemical Family: Silanes, Sulfur-based Compounds

Compatible Polymers & Resins: Acrylics, Chloroprene Rubber (CR), Epoxies (EP), Isoprene Rubber (IR), Nitrile Butadiene Rubber (NBR), Styrene Butadiene Rubber (SBR)

Synonyms: Bis[3-(triethoxysilyl)propyl]-disulfide

Technical Data Sheet

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Identification & Functionality

CASE Ingredients Functions
Plastics & Elastomers Functions
CAS No.
56706-10-6
EC No.
260-350-7

Features & Benefits

Key Functions

Adhesion Promotion:

  • Low use levels, typically <1%
  • Substrates - reaction with alkoxy functional group
    • Glass
    • Siliceous Substrates
    • Metals/ metal oxides
  • Substrates – reaction with organic functional group
    • Acrylics
    • Polyamides
    • Polyesters

Coupling Agent:: 

  • Dispersed in adhesive/ sealant material
  • Improves
    • Mechanical Properties
    • Chemical Resistance
    • Hydrolytic Stability
  • Substrates
    • Mineral fillers
    • Polymeric coatings

Crosslinking: 

  • Create structure in polymer network
  • Improve physical properties
    • Heat resistance
    • Hardness
    • Chemical Resistance

Dispersing Agent:

  • Improves filler wetting
  • Decreases viscosity which allows for high loading of silica

Applications & Uses

Applications

Andisil® 6920 Silane is used in almost all fields of the rubber industry where silanol-containing white fillers are used and optimum technical properties are required Ex) Low rolling resistance tires, mechanical rubber goods and shoe soles.

Properties

Physical Form
Appearance
Yellow transparent liquid
Typical Properties
ValueUnitsTest Method / Conditions
Density1.0247g/cm3
Flash Pointmin. 100
Minimum Puritymin. 95%
Refractive Index1.4575

Technical Details & Test Data

Reactivity

Reacts with white fillers’ silanol groups during mixing and with the polymer during vulcanization forming covalent chemical bonds resulting in greater

  • Tensile strength
  • Higher moduli
  • Reduced compression set
  • Increased abrasion resistance and optimized dynamic properties.

Packaging & Availability

Packaging Information

Andisil® 6920 Silane is available in 440 pound net weight drums or 40 pound pails.

Storage & Handling

Shelf Life
2 years
Storage & Shelf Life

The shelf life, when the container is stored unopened and under proper conditions above 50ºF, is expected to be a minimum of two (2) years.