Dynasylan® 6490
- CASE Ingredients Features
- Abrasion ResistanceChemical ResistanceHigh Flash PointHigh Impact StrengthHigh PerformanceLow Viscosity
- Chemical Family
- Organosilane
Dynasylan® 6490 is a concentrate of vinyl silane (oligomeric siloxane) containing both vinyl and methoxy groups. This nearly odorless, colorless, low-viscosity liquid acts as an excellent compatibilizer between inorganic fillers (such as kaolin, MDH, ATH) and organic polymers (including EPDM, EVA, PE).
Properties
- Physical Form
- Liquid
Other characteristics
- Brand
- Dynasylan
- Functions
Adhesion Promoter, Compatibilizer, Coupling Agent, Crosslinking Agent, Filler, Moisture Scavenger, Surface Modifier
- Labeling Claims
- Low VOC
- Compatible Polymers & Resins
Ethylene Propylene Diene Monomer (EPDM), Ethylene Vinyl Acetate (EVA), High-Density Polyethylene (HDPE), Polyethylenes (PE)
- Odor
- Nearly odorless
- Markets
- Adhesives & Sealants
- Building & Construction
- Electrical & Electronics
- Paints & Coatings
- Appearance
- Colorless. low - viscous liquid
- Reactivity
Dynasylan® 6490 is excellent as an adhesion promoter, dispersion and hydrophobation agent in mineral filled compounds.; In the presence of moisture, the methoxy groups of Dynasylan® 6490 hydrolyse to produce methanol and reactive silanol groups.; These silanol groups react with the filler via silicon- oxygen bridges. The vinyl functional groups of Dynasylan® 6490 react with the polymer phase in the presence of radicals.; The high boiling point of Dynasylan® 6490, together with its high flash point, gives it outstanding advantages with respect to safety and handling during processing.; From an environmental viewpoint it should be noted that the amount of released hydrolysis methanol (VOC) is significantly reduced compared to monomeric vinyl silanes.
- Shelf LIfe
- 12 months
- Technology
- CASE Ingredients
- Elastomers
- Plastics
- Packaging Type
- Drums
- Material Features
Abrasion Resistant; Chemical Resistant; Excellent Hydrophobic Properties; Good Environmental Stress Crack Resistance (ESCR); Good Impact Strength; Good Processability; High Boiling Point; High Flash Point; High Performance; Improves Filler Dispersion; Low Viscosity; Reduces Moisture Uptake
- Chemical Inventories
- ECL (Korea)
- EINECS (EU)
- ELINCS (EU)
- IECSC (China)
- TSCA (USA)
- Packaging Information
Dynasylan® 6490 is supplied in 25 kg, 200 kg drums and 1.000 kg containers.. The containers must remain tightly sealed and stored in a cool, well-ventilated place protected against moisture.
Technical data
Table 1 of 1
5 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Density (at 20°C) | approx. 1 | g/cm³ | DIN 51757 |
| Boiling Point (at 1013 hPa) | min. 220 | °C | ASTM D-1120 |
| Dynamic Viscosity (at 20°C) | 2 - 4 | mPa.s | DIN 53015 |
| Flash Point | approx. 87 | °C | DIN EN ISO 2719 (Pensky-Martens, closed-cup) |
| Silica Content (as SiO₂) | approx. 54 | % w/w | AN-SAA 0754 |
