Build · Swimming pool heating

Making Free Styrofoam Insulation Balls for Styrocrete

I make free insulation material for Styrocrete by shredding leftover styrofoam pieces using a homemade laser-cut wooden box and a drill.

By RobbertPosted

Mini subtropisch zwemparadijs deel 1.1 (EPS/piepschuim shredden)

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Welcome to a small update on the subtropical garden renovation where we fully insulate our pool and use Styrocrete. Styrocrete is a mix of cement and EPS, or styrofoam, balls used as insulation.

Since the weather is poor today, I am showing how I grind my large collection of free leftover styrofoam pieces into usable insulation material. I built a shredder using a laser-cut wooden box and a rotating drum driven by a drill to break down the material.

Everything in the world is for sale, but you can make things yourself for free to keep costs down. This setup lets me turn waste into valuable insulation in just five minutes.

Steps

  1. Step 1: Introduction to the subtropical garden renovation and pool insulation

    Welcome to a small update on the subtropical garden renovation. We see our pool completely insulated, after which we use Styrocrete. Styrocrete is a mixture of cement and EPS balls, otherwise known as styrofoam.

    In this video, I will show you how I grind styrofoam into usable insulation material. Since the weather is not so great today, work never stops, so I am going to show you how we make styrofoam for the Styrocrete.

  2. Step 2: Collecting free leftover styrofoam pieces

    I have a lot of old leftover pieces of styrofoam that are thick, thin, long, and short. These are all leftover pieces that I was able to take with me for free.

    This makes perfect insulation material. Buying styrofoam bags sold as insulation is very expensive as prices go through the roof, so this lets me convert my styrofoam for free.

  3. Step 3: Shredding styrofoam with a homemade laser-cut box and a drill

    I made a wooden box using a laser cutter with a rotating mechanism inside that runs on a drill. The box is connected to an industrial vacuum cleaner which can also vacuum water and everything.

    The drum inside is completely filled with teeth. The drill makes this drum rotate so you can easily push the styrofoam in from the top.

    What I used

    ItemAmountNotes
    laser-cut wooden box1contains a rotating mechanism
    drill1drives the rotating mechanism
    industrial vacuum cleaner1can also suck water
  4. Step 4: Pushing styrofoam from the top

    The rotating drum inside the box is completely covered with teeth to break the material apart. You can easily push the styrofoam in from the top so it is chipped and turned into loose balls.

  5. Step 5: Collecting the shredded styrofoam balls into a barrel

    The styrofoam is broken off as it were and reused into loose small balls. These balls go via the vacuum hose and are stored in the large vessel.

    From there, I can tip them over into a big bag. If the drill happens to overheat, a fan is used to cool it down.

    Tip

    Use a fan to cool the drill down if it overheats.

    What I used

    ItemAmountNotes
    vacuum hose1transports balls to the vessel
    large vessel1stores the styrofoam balls
    big bag1holds the dumped balls
  6. Step 6: Takeaways

    • Styrocrete is a mixture of cement and EPS styrofoam balls used for pool insulation.

    • Leftover styrofoam pieces can be collected for free to use as insulation.

    • A homemade laser-cut wooden box with a drill and a rotating drum can shred styrofoam.

    • An industrial vacuum cleaner and a large barrel safely collect the shredded styrofoam balls.

    • Making insulation materials yourself is a great way to avoid high retail prices and cut costs.

Everything I used

ItemAmountNotes
laser-cut wooden box1contains a rotating mechanism
drill1drives the rotating mechanism
industrial vacuum cleaner1can also suck water
vacuum hose1transports balls to the vessel
large vessel1stores the styrofoam balls
big bag1holds the dumped balls

Cutting costs by making insulation yourself

This whole process is literally five minutes of work. It shows that while everything in the world is for sale, you can make things yourself for free and significantly lower your costs.

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