Boat Resin Fillers & Additives

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CategoryBoat Epoxy & Fiberglass Supplies
CategoryBoat Resin Fillers & Additives
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Marine Epoxy Fillers and Resin Additives


Fisheries Supply is your premier source for high-quality boat fillers and resin additives. Our extensive selection meets all your marine repair and maintenance needs.

Understanding Boat Epoxy Fillers and Resin Additives

Boat resin fillers and epoxy additives are essential for enhancing the performance of epoxy and polyester resins.
These marine wood fillers and epoxy resin fillers offer a range of benefits, including:
  • Increased strength
  • Weight reduction
  • Viscosity modification
  • Improved sanding characteristics
  • Enhanced UV resistance
  • Abrasion resistance

Types of Marine Epoxy Fillers

  • Microballoons or Microspheres: These lightweight spheres add volume while reducing overall weight, all while maintaining strength.
  • Silica: Colloidal silica is commonly used in fairing compounds to create smooth surfaces.
  • Chopped Fiberglass or Microfibers: This milled glass fibers additive significantly boosts the strength of the resin.
  • Epoxy Tinting Pigments: Concentrated colorants that allow you to customize the color of epoxy resins.

Choosing the Right Boat Filler

When selecting a marine epoxy filler or resin additive, consider the following:
  • Application location (above or below the waterline)
  • One-part vs. two-part formulations
  • Desired properties of the epoxy mixture (strength, weight, viscosity)
  • Compatibility with other resins or chemicals in your project
Our representatives can assist you in choosing from top brands, including: