Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Evonik Dynasylan HYDROSIL 2909 Aqueous oligomeric aminoalkyl-functional silane hydrolysate

Evonik Dynasylan HYDROSIL 2909 is an aqueous oligomeric aminoalkyl-functional silane hydrolysate from the Dynasylan® silane coupling agent series—designed for enhanced adhesion promotion, corrosion inhibition and surface functionalization on metals, glass and minerals in water-based systems.
  • evonik dynasylan hydrosil 2909 aqueous oligomeric aminoalkyl functional silane h_af954e4d
  • evonik dynasylan hydrosil 2909 aqueous oligomeric aminoalkyl functional silane h_af954e4d

Features Of Evonik Dynasylan HYDROSIL 2909 Aqueous oligomeric aminoalkyl-functional silane hydrolysate

  1. Water-based, ready-to-use hydrolysate—no on-site acid catalysis or aging required.

  2. Contains reactive aminoalkyl-functional silane oligomers for strong covalent bonding to inorganic substrates and organic polymers.

  3. Low volatility and non-hazardous formulation—exempt from VOC reporting under major regulatory frameworks (e.g., EU REACH, US EPA).

  4. Excellent hydrolytic stability in neutral to mildly acidic aqueous systems (pH 4–6.5).

  5. Enables uniform surface functionalization of silica, glass, metals, and mineral fillers without precipitation or gelation.

Typical Applications Of Evonik Dynasylan HYDROSIL 2909 Aqueous oligomeric aminoalkyl-functional silane hydrolysate

  1. Surface treatment of silica fume and precipitated silica in high-performance rubber compounds (e.g., tire treads).

  2. Adhesion promotion in waterborne coatings for metal and concrete substrates.

  3. Functionalization of glass fibers for improved matrix compatibility in thermoset composites (epoxy, phenolic).

  4. Stabilizer and coupling agent in aqueous mineral pigment dispersions for architectural and industrial paints.

  5. Pre-treatment for aluminum and galvanized steel prior to cathodic electrocoating (e-coat) in automotive OEM lines.

Specifications Of Evonik Dynasylan HYDROSIL 2909 Aqueous oligomeric aminoalkyl-functional silane hydrolysate

Chemical TypeAqueous hydrolysate of aminoalkyl-functional silane (N-(2-aminoethyl)-3-aminopropyltrimethoxysilane derivative)
Product FormClear, colorless to pale yellow liquid
AppearanceHomogeneous, low-viscosity aqueous solution
pH (10% aqueous solution, 20 °C)4.5 – 5.5
Silicon Content (Si, w/w %)Approx. 12.0 – 13.5%
Active Silane Content (w/w %)Approx. 25 – 28%
Density (20 °C)1.02 – 1.05 g/cm³
Storage Stability (unopened, 5–25 °C)≥ 12 months


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