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  • Fumed Silica

    December 15, 2023 2 min read

    What You'll Need

    • Polyester resin
    • Fumed silica (a fine powder additive)
    • MEK-P (Methyl Ethyl Ketone Peroxide) as a curing agent
    • Mixing stick or low-speed drill with a mixing attachment
    • Protective gloves and mask
    • Measuring tools (like a measuring cup or scale)

    Steps

    1. Get Ready: Make sure your resin is at room temperature. This makes it easier to mix.

    2. Stir the Resin: Before adding anything, give your resin a good stir.

    3. Add Fumed Silica: Slowly sprinkle fumed silica into the resin while stirring. Imagine you're adding flour to dough – you don't want lumps! A little goes a long way; you'll usually need only a small amount (about a teaspoon for a cup of resin, but check your product guidelines).

    4. Mix Well: Keep stirring until everything looks even. No rush – a slow and steady mix is best.

    5. Time for MEK-P: Now, add your curing agent (MEK-P) following the instructions on the bottle. Usually, it's a small amount, like a few drops.

    6. Final Stir: Give everything one last good mix.

    7. Ready to Use: Now your resin is ready to use! Remember, it will start to harden, so use it quickly.

    Mixing Fumed Silica with Epoxy Resin

    What You'll Need

    • Epoxy resin and hardener
    • Fumed silica
    • Mixing stick or low-speed drill with a mixing attachment
    • Protective gloves and mask
    • Measuring tools

    Steps

    1. Warm-Up Resin: Let your epoxy resin and hardener sit at room temperature.

    2. Mix Resin and Hardener: Follow the instructions on your epoxy resin for mixing it with the hardener. It's usually a 1:1 ratio.

    3. Add Fumed Silica: Gradually add fumed silica to the mixture. Start with a little, like a teaspoon, and add more if needed.

    4. Stir Slowly: Mix everything together slowly and evenly until it looks consistent.

    5. Check Consistency: The mixture should be a bit thicker but still easy to work with.

    6. Apply Soon: Epoxy resin can harden quickly, so use your mixture soon after it's ready.

    General Tips

    • Safety First: Always wear gloves and a mask, especially when handling MEK-P and fumed silica.
    • No Rush: Take your time with mixing to avoid air bubbles and unevenness.
    • Clean Workspace: Work in a well-ventilated area and keep your workspace tidy.
    • Storage: Store any leftover materials in a cool, dry place.