Dynasylan® 6490

Technical Documents

Dynasylan® 6490 is a colorless and odorless vinyl silane concentrate. Acts as an adhesion promoter, dispersion and hydrophobation agent in mineral filled compounds.Used in adhesives and sealants.

Details

CAS

131298-48-1

Product Type

Additive > Hydrophobic agents
Additive > Dispersing agents
Additive > Adhesion promoters > Organofunctional Silanes

Applications

Coatings
Adhesives
Adhesives > Sealants

Producer

Evonik

Supplier

Evonik Iran > Silans

Chemical Composition

Methoxy functional vinyl siloxane oligomer

Advantages
  • improved filler dispersion
  • good processability
  • significantly reduced water-uptake
  • good balance between tensile strength, elongation at break at a high level improved chemical resistance
  • strongly reduced tendency to stress cracking
  • higher impact strength
  • higher abrasion resistance
  • low-viscosity
Other Applications

adhesives
sealants
filler and pigment coating

Storage

The containers must remain tightly sealed and stored in a cool, well-ventilated place protected against moisture.

Handling

Dynasylan® 6490 is listed on EINECS/ELINCS, TSCA, IECSC, ENCS and ECL.

Technical data

Quantity Value Unit Comment
Appearance Properties
Appearance Colorless
Physical state Fluid
Physical Properties
SiO2 54 % AN-SAA 0754
Viscosity 2 - 4 cP DIN53015 ;20°C
Density 1 g/ml DIN51757 ;20°C
Thermal Properties
Boling point >220 ºC 1120-ASTM D
flash point 87 ºC DIN EN ISO2719;Pensky-Martens, closed cup
Chemical Properties
Shelf Life >12 month