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

Wacker GENIOSIL STP Silane Modified Polymer

Wacker GENIOSIL STP Silane Modified Polymer is a one-component, moisture-curing polymer offering exceptional adhesion to diverse substrates without primers. It delivers high elasticity, UV resistance, and excellent weathering performance. Ideal for structural glazing, façade sealing, and industrial bonding. Low VOC, solvent-free, and compatible with most common building materials. Developed by Wacker Chemie AG for demanding architectural and industrial applications.
  • wacker geniosil stp silane modified polymer_d7d362cb
  • wacker geniosil stp silane modified polymer_d7d362cb

Features Of Wacker GENIOSIL STP Silane Modified Polymer

  1. Non-isocyanate, moisture-curing polymer offering excellent adhesion to diverse substrates without primers.

  2. Low VOC and solvent-free formulation compliant with stringent environmental and occupational health regulations.

  3. Superior elasticity and long-term durability under thermal cycling, UV exposure, and weathering conditions.

  4. Easy processing—compatible with standard sealant and adhesive manufacturing equipment, including twin-screw extruders.

  5. Hydrolytically stable silane end-groups ensure consistent shelf life and reliable in-use performance.

Typical Applications Of Wacker GENIOSIL STP Silane Modified Polymer

  1. High-performance construction sealants for façade, curtain wall, and expansion joint applications.

  2. Automotive assembly adhesives for bonding trim, emblems, and interior modules.

  3. Industrial bonding solutions for metal, glass, and composite substrates in appliance and transportation sectors.

  4. Renewable energy applications including PV module encapsulation and wind turbine blade bonding.

Specifications Of Wacker GENIOSIL STP Silane Modified Polymer

Chemical TypeSilane-terminated polyether (STP)
Product FormPaste-like, viscous liquid
AppearancePale yellow to colorless, transparent to slightly hazy
Primary ApplicationsSealants, structural adhesives, and hybrid polymer formulations
Key FeaturesMoisture-curing, non-isocyanate, low modulus, high elongation
BenefitsNo primer required, excellent adhesion to low-energy surfaces, minimal shrinkage
Storage Stability≥12 months at ≤25 °C in sealed original packaging
VOC Content<5 g/L (EN ISO 11890-2)


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