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

Evonik Dynasylan HYDROSIL 2776 Diaminofunctional oligomeric siloxane aqueous solution

Evonik Dynasylan HYDROSIL 2776 is a diamino-functional oligomeric siloxane aqueous solution from the Dynasylan® silane coupling agent series, offering excellent adhesion promotion, hydrophobicity enhancement, and compatibility with water-based systems for coatings, adhesives, and sealants.
  • evonik dynasylan hydrosil 2776 diaminofunctional oligomeric siloxane aqueous sol_d6dcf0f5
  • evonik dynasylan hydrosil 2776 diaminofunctional oligomeric siloxane aqueous sol_d6dcf0f5

Features Of Evonik Dynasylan HYDROSIL 2776 Diaminofunctional oligomeric siloxane aqueous solution

  1. Water-based, VOC-compliant formulation enabling safe handling and reduced environmental impact.

  2. Diaminofunctional oligomeric structure provides excellent adhesion promotion to glass, metals, and polar polymers.

  3. Hydrolytically stable under neutral to mildly acidic conditions, ensuring consistent performance in aqueous processing.

  4. Enables covalent bonding via amine-reactive silanol groups, enhancing interfacial durability in composite systems.

  5. Low odor and non-hazardous classification (non-GHS classified) supports occupational safety and regulatory compliance.

Typical Applications Of Evonik Dynasylan HYDROSIL 2776 Diaminofunctional oligomeric siloxane aqueous solution

  1. Adhesion promoter for automotive glass bonding and laminated safety glazing.

  2. Surface modifier for silica fillers in waterborne tire tread compounds.

  3. Primer additive in aqueous coatings for aluminum and stainless steel substrates.

  4. Functional binder component in high-performance mineral-filled construction mortars.

  5. Interfacial coupling agent in fiber-reinforced polymer (FRP) composites processed via RTM or pultrusion.

Specifications Of Evonik Dynasylan HYDROSIL 2776 Diaminofunctional oligomeric siloxane aqueous solution

Chemical TypeDiaminofunctional oligomeric siloxane
Product FormAqueous solution
AppearanceClear, colorless to pale yellow liquid
pH (1% aqueous solution, 23 °C)5.0 – 6.5
Silicon Content (Si, wt %)Approx. 12.5 – 13.5
Amine Value (mg KOH/g)45 – 55
Density (20 °C, g/cm³)1.01 – 1.03
Viscosity (25 °C, mPa·s)5 – 15


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