International Interfill 830 Base (A) Epoxy Filler Grey, 2.5Lt

International Interfill 830 is a high-performance epoxy fairing filler developed for demanding marine repair and profiling work.

When Base (A) is mixed with the appropriate Interfill 830 curing agent, the system produces a strong yet lightweight filler that can be applied in thicknesses of up to 20 mm in a single coat at 23°C without sagging. This makes it especially useful for correcting uneven hull surfaces and fairing larger areas.

Once cured, Interfill 830 is waterproof, impact resistant and easy to sand, allowing the repaired area to be shaped and smoothed before the next coating stage.

After sanding, the surface can be overcoated with compatible epoxy primers such as International Interprime 820, Interprotect or Interprime 880, depending on the coating system being used.

Technical Details

• Product: International Interfill 830
• Component: Base (A)
• Product Code: YAA867
• Colour: Light Grey
• Pack Size: 2.5L
• Type: Two-component epoxy fairing filler system
• Finish: Matt
• Specific Gravity: Approx. 0.75
• Volume Solids: 100%
• Mixing Ratio: 1:1 by volume with the specified curing agent
• Maximum Application Thickness: Up to 20 mm per coat at 23°C
• Application: Spreader / fairing tools
• Sanding: 80–180 grit after curing
• Suitable Areas: Above and below the waterline
• Suitable Substrates: Properly prepared steel, aluminium, GRP/composites and stable wood

Important: This product is Base (A) only and must not be used on its own. It must be mixed with the correct Interfill 830 curing agent before application. Surfaces must be clean, dry and correctly prepared or primed according to the substrate and International coating system.