Fumed Silica

Fumed Silica is a thickening agent for epoxy, ideal for vertical applications on concrete surfaces, available in 5-gallon buckets.


Fumed Silica is a versatile thickening agent specifically formulated for enhancing epoxy applications on concrete surfaces. Packaged in 5-gallon buckets, this additive is essential for achieving the right viscosity and stability required for vertical and overhead applications, ensuring the epoxy stays in place without sagging or dripping.

Key Features:

  • Effective Thickening Agent: Increases the viscosity of epoxy, allowing it to be applied to vertical and overhead surfaces without running or sagging.
  • Enhanced Stability: Improves the stability of epoxy formulations, preventing settling and maintaining a uniform consistency throughout the application process.
  • Improved Workability: Provides better control during application, making it easier to achieve smooth, even coatings on concrete surfaces.
  • Versatile Use: Suitable for a wide range of epoxy applications on concrete, including repairs, coatings, and protective layers.
  • Superior Adhesion: Enhances the bonding strength of epoxy to concrete, ensuring a durable and long-lasting application.
  • Chemical Resistance: Contributes to the chemical resistance of epoxy coatings, providing protection against harsh environmental conditions and chemical exposure.


  • Vertical Epoxy Applications: Ideal for applying epoxy coatings and adhesives on vertical concrete surfaces, such as walls, pillars, and beams.
  • Overhead Epoxy Applications: Suitable for overhead applications where epoxy needs to stay in place without dripping, such as ceilings and undersides of structures.
  • Concrete Repairs: Used in repair epoxies to fill cracks, gaps, and voids in concrete surfaces, ensuring a stable and durable repair.
  • Protective Coatings: Enhances the performance of protective epoxy coatings on concrete, providing a thick, stable layer that resists wear and environmental damage.

Fumed Silica is an indispensable additive for professionals working with epoxy on concrete surfaces, ensuring that applications are efficient, stable, and long-lasting, even on vertical and overhead surfaces.