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Upcycling DIY: How to Make a Stylish Concrete Vase from Plastic Bottles

Creating your decor pieces not only imbues your space with a personal touch but can also be a fun and rewarding project. Most of us will have some plastic or paper containers lying around that can be used to create something beautiful. Today, we're diving into how you can craft a stylish and modern concrete vase using everyday materials: plastic bottles.


Upcycling DIY: How to Make a Stylish Concrete Vase from Plastic Bottles
Upcycling DIY: How to Make a Stylish Concrete Vase from Plastic Bottles

This DIY project is perfect for those looking to add a touch of minimalist design to their home.

Here are some essential tips to guide you through the process:


DIY Concrete Vase: List of Tools and Materials Needed


  1. Plastic Bottle: Select a thin, flexible plastic bottle for the outer mould. This will be the main shape of your vase.

  2. Smaller Glass or Plastic Container: This is needed to create a cavity inside the vase for water. Make sure it fits inside the plastic bottle with enough space around it for the concrete.

  3. Sharp Knife or Scissors: Use this to cut the top off the plastic bottle and adjust the size of your mould.

  4. Vegetable Oil and Brush: Lightly coat the inside of the plastic bottle and the outside of the inner container, making the moulds more straightforward to remove after the concrete cures.

  5. Mixing Container: A bucket or a large bowl to mix the concrete.

  6. Concrete Mix: This is available at any hardware or home improvement store. The quantity depends on the size of your vase.

  7. Measuring Cup: To measure water and concrete mix accurately.

  8. Stir Stick or Mixing Tool: This is used to mix the concrete and water.

  9. Safety Gear: Gloves to protect your hands while mixing concrete, and a dust mask to avoid inhaling dust.

  10. Sandpaper: To smooth any rough edges after demolding.

  11. Concrete Sealer (Optional): Seal the vase to make it water-resistant if you plan to use it for fresh flowers.

  12. Decorative Elements (Optional): Paint, decorative tiles, or any other materials you'd like to use for personalizing your vase.


Working with concrete can be messy, so it's advisable to cover your work surface with plastic or newspaper for easy cleanup. Also, ensure you're working in a well-ventilated area, especially when mixing the concrete, to keep the air quality safe. With these tools and materials, you can start creating your unique DIY concrete vase!


1. Choose the Right Plastic Bottle

Selecting a thin, flexible plastic bottle is the key to a smooth demolding process (believe me, I've learned the hard way). Thinner plastic is easier to cut and remove once the concrete has cured. This choice will significantly reduce the hassle of taking your concrete creation out of its mould without damaging it.


DIY project creating concrete vases from plastic bottles
Choose the Right Plastic Bottle

2. Prepare Your Bottle

Begin by cutting off the top of the plastic bottle. This modification serves two essential purposes: it creates an open mould for your vase, allowing you to pour in the concrete easily, and significantly facilitates the demolding process. Removing the bottle's narrow top ensures you can more effortlessly cut and peel the plastic away from the cured concrete without risking damage to your vase's structure. Choose the cut height based on the desired size of your vase, keeping in mind the overall design and stability.


3. Apply Vegetable Oil

Before pouring the concrete, apply a thin layer of vegetable oil on the inside of the plastic bottle and the outside of the inner container (if using one). This oil acts as a release agent, making it significantly easier to remove the moulds once the concrete has cured. Ensure the oil coating is light to prevent any impact on the concrete's texture or integrity.


4. Incorporate an Inner Container

To create space inside your concrete vase for water and flowers, consider placing a smaller glass container or another plastic bottle with the top cut off inside the mould before pouring in the concrete. This step is crucial for functional vase design, ensuring your creation can hold water without leaking.


5. Perfect the Pour

Mix your concrete according to the package instructions, aiming for a pourable consistency that is not too runny. Carefully pour the concrete into the outer mould, around the inner container, tapping the sides gently to remove air bubbles. This process will help achieve a smooth finish.


6. Let It Cure

Patience is key. Allow the concrete to cure for at least 24 hours in a cool, dry place. The curing time may vary depending on the concrete mix and environmental conditions, so refer to the package instructions for specific guidance.


7. Demould with Care

Once cured, gently cut and peel away the plastic bottle from the concrete. If you used a glass container inside, it could either be left in place or removed, depending on whether it was intended as part of the final design.


Recycling Plastic bottles: diy project concrete vases
Demould with care: concrete vases

8. Seal the Deal

Consider applying a concrete sealer to your vase to prevent moisture from seeping through and enhance its durability. This step is essential if you intend to use the vase for fresh flowers and haven't used an inner glass or plastic container.


9. Stability is Key

Ensure your vase is not top-heavy to prevent it from toppling over. The design should have a solid base wider than the top or add a heavier base to the bottom for extra stability.


Final Touches

Sand and decorate your vase as desired. For a minimalist look, you can leave it in its natural concrete finish, paint it, apply decorative tiles, or even embed objects into the concrete before it sets for a personalized touch.


Creating a concrete vase using plastic bottles is a sustainable way to recycle and repurpose materials into something beautiful and functional. With these tips, you're well on your way to adding a unique piece of decor to your home that's sure to be a conversation starter. Happy crafting!

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