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

Evonik Dynasylan F8261 Tridecafluorooctyltriethoxysilane

Evonik Dynasylan F8261 Tridecafluorooctyltriethoxysilane is a fluorinated alkylsilane coupling agent offering exceptional hydrophobicity oleophobicity and chemical resistance. It enables durable surface modification of glass metals and minerals via covalent Si–O–substrate bonding. Ideal for anti-fouling coatings waterproofing and high-performance composites requiring low surface energy and thermal stability up to 200°C.
  • evonik dynasylan f8261 tridecafluorooctyltriethoxysilane_dc0a892d
  • evonik dynasylan f8261 tridecafluorooctyltriethoxysilane_dc0a892d

Features Of Evonik Dynasylan F8261 Tridecafluorooctyltriethoxysilane

  1. Provides exceptional hydrophobic and oleophobic surface properties due to its perfluorinated C8 chain.

  2. Enables covalent bonding to inorganic substrates (e.g., glass, metals, ceramics) via hydrolyzable ethoxy groups.

  3. Offers excellent thermal and chemical stability under typical coating and curing conditions.

  4. Delivers low surface energy and high contact angles for robust water/oil repellency.

  5. Compatible with sol-gel systems and organic polymer matrices for hybrid functional coatings.

Typical Applications Of Evonik Dynasylan F8261 Tridecafluorooctyltriethoxysilane

  1. Water- and oil-repellent treatments for architectural glass and façade elements.

  2. Functionalization of silica nanoparticles for high-performance composites.

  3. Surface modification of medical devices requiring low-fouling and easy-clean properties.

  4. Anti-graffiti coatings for concrete, stone, and metal substrates.

  5. Pre-treatment for aluminum and stainless steel prior to painting or adhesive bonding.

Specifications Of Evonik Dynasylan F8261 Tridecafluorooctyltriethoxysilane

Chemical TypeFluoroalkyltrialkoxysilane
Product FormLiquid
AppearanceColorless to pale yellow clear liquid
Molecular FormulaC14H19F13O3Si
Primary ApplicationsSurface functionalization, hydrophobic/oleophobic coatings, adhesion promotion
Key FeaturesPerfluorinated tail, triethoxysilyl head group, hydrolyzable alkoxy functionality
Storage ConditionsStore in tightly closed containers under inert gas at 5–25 °C
Handling PrecautionsUse in well-ventilated areas; avoid inhalation and skin contact


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