Dynasylan® 4148 helps to control rheological properties and to reduce viscosity in highly-filled polymer systems, like aluminum trihydroxide-filled polyesters or SMC-pastes.
Contrary to most other organofunctional silanes, Dynasylan® 4148 features chemical polarity yet remaining chemically not reactive. Such a product is used as a hydrophilic compatibilizer rather than a covalent adhesion promoter.
Dynasylan® 4148 permits workable viscosities at well over 250 phr aluminum trihydroxide loading in unsaturated polyester resins. Further more, Dynasylan® 4148 can be used as anti-settling agent for corrosion inhibitors in glycol based cooling agents.
As a non-coupling silane Dynasylan® 4148 can also be used as a slipping agent to simply modify a surface.
Dynasylan® 4148 can be added neatly to a blend of filler or pigment and resin, or it can be used for the pretreatment of the filler or pigment.
Evonik was granted the first patent for silanes in 1928. Since then, we received more than 400 patents. Our position as a world’s leading manufacturer of functional silanes is due to our uncompromising commitment to quality and highest purity of our products. Evonik set high standards, mainly in efficiency, connection with resource conservation, compatibility and implementation of the Responsible Care® initiative. To meet these ambitious requirements, we produce all standard and specialty products in low-waste and energy cycles, or closed-loop processes.