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.

Key Features

• Base component of the Interfill 830 two-component epoxy system
• Professional epoxy fairing and profiling filler
• Suitable above and below the waterline
• Ideal for steel, aluminium and composite hulls
• Can be applied up to 20 mm thick in one coat
• Low-density formulation
• High strength and impact resistance
• Waterproof after curing
• Easy to sand and fair
• Particularly suitable for larger surface areas
• Colour: Grey
• Size: 2.5L

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.

Why Choose International Interfill 830?

Interfill 830 is designed for jobs where a standard thin filler is not enough. Its ability to build up to 20 mm without sagging, combined with easy sanding and high water resistance, makes it an excellent choice for hull fairing, profiling and marine repair work.