Evonik Dynasylan 4148 is a non-ionic polyether silane designed to enhance the wetting, dispersion, and rheological properties of fillers and pigments in various polymer and solvent systems. It acts as a highly effective compatibility agent without covalent bonding activity.
Dual Reactivity – Features vinyl and amino groups for broad polymer compatibility
Cationic Nature – Provides inherent antistatic properties and excellent resin wetting
Instant Water Solubility – Fully miscible in water even at neutral pH
Extended Gel Time – High chloride content delays epoxy curing, reducing air entrapment
Fiber Reinforcements – Glass fiber sizing for epoxy and unsaturated polyester composites
Adhesive Systems – Primer and additive for sealants and adhesives
Conductive Coatings – Antistatic modifier in paints and protective coatings
Mineral-Filled Composites – Pretreatment agent for fillers and pigments
Electronics Encapsulation – Enhanced dielectric properties in epoxy potting systems
| Chemical Type | Cationic Amino Silane |
| Active Content | 40% in Methanol |
| Appearance | Dark yellow to brown liquid |
| Reactivity | Vinyl & Amino groups |
| Solubility | Water-miscible (pH 7) |
| Recommended Hydrolysis | Acetic acid (pH 3-4) |
| Key Feature | Antistatic, Gel time extension |
| Shelf Life | 1 year (sealed) |
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