How to Make Slime with Liquid Starch

Опубликовал Admin
4-08-2021, 08:40
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Not appetized by the idea of edible or marshmallow slime? Or maybe you couldn't find borax at your local store? Well, liquid starch is even better than borax! By mixing the starch with glue—and some iron oxide if you want to make it magnetic—the borate ions in it connect the strands of molecules in the glue to make it thicker and less liquidy. With a bit of tangling and mixing, you can make thick, rubbery slime to have some fun with!

Making Colorful Slime

  1. Purchase liquid starch from the local grocery store. Head to the aisle with laundry detergent and look for bottles of liquid starch. The most common brands are Linit Starch or Sta-Flo but anything with the following ingredients will work: sodium borate, borax powder, or boric acid.
    • You can also purchase liquid starch from online suppliers, big-box stores, and crafts stores.
  2. Mix ⁄2 cup (120 mL) of water with ⁄2 cup (120 mL) of PVA glue. Start by using a measuring cup to pour your water into a large bowl. Now, use a separate measuring cup or spoon to add your glue. Be sure to stir it well with a spoon or wooden popsicle stick until it's completely combined.
    • Check that the glue and water are a single consistency after stirring.
    • Use clear glue if you want to create jewel-toned slime when adding colors in the next step.
  3. Add food coloring, confetti, and glitter to your mixture. When it comes to colors, you can do whatever you want! Start by adding 2 to 3 drops of a food coloring of your choice and mix it in with your spoon. After mixing it in well, add more of the same color to make it stronger or mix in other colors. You can also use confetti and glitter to create a sparkling look.
    • Keep experimenting until you get a color you like!
    • Remember that each color will be a bit lighter than normal if you're mixing them with white glue.
  4. Mix in ⁄4 cup (59 mL) of liquid starch. Use the measuring cup you used for water to add your liquid starch. The slime will start to form immediately—stir it in with your spoon and continue doing so until you have a ball of slime with a stringy texture.
    • Don't stop mixing until your starch is completely mixed with the glue—the borate in the liquid starch should connect the strand-like molecules that make up the glue to create a thick, rubbery substance.
  5. Knead your slime until it's a nice consistency. Once your slime is a consistent stringy texture, you need to pull, bend, stretch, and twist it—also known as kneading—until it's more like slime. As you knead the slime with your hands the consistency will start to change—this is a good sign! Keep kneading until you have a consistency that you're happy with.
    • Place your slime in a container and let it sit for 3 minutes to help the consistency change naturally.
  6. Refrigerate your slime in a sealable bag or toss it out when you're finished. After you're done playing with your slime, either throw it in the garbage or place it in the refrigerator to use later. Just be sure to seal it tightly in a sealable bag with as little air as possible.
    • Make sure your refrigerator temperature is 35 to 40 °F (2 to 4 °C).

Creating Magnetic Slime

  1. Purchase iron oxide powder and neodymium magnets. Check online suppliers and find neodymium—or rare earth—magnets. This is what you'll use to harness the magnetism of your slime! You can also purchase iron oxide powder from online suppliers or head to a local big-box store.
    • Never breathe in iron oxide powder and always have a parent present when working with it!
  2. Pour 8 ounces (230 g) of PVA glue into a bowl. Purchase a small 8 ounce (230 g) glue bottle, remove the lid, and squeeze all of it out into the bowl. Be sure to save the empty bottle when you're done!
    • Don’t worry about shaking the bottle to get out the excess glue left inside.
  3. Fill the empty glue bottle with water and pour it into the bowl. After emptying the 8 ounce (230 g) glue bottle, fill it with water and twist the cap onto it. Now, shake it up thoroughly for about 15 to 30 seconds and then add the remaining water-glue solution into the bowl.
    • Discard the glue bottle after emptying it out.
  4. Mix ⁄2 cup (120 mL) of liquid starch with 1.2 cups (280 mL) of warm water. Start by pouring your warm water into a small plastic cup using a measuring cup. Now, add your liquid starch and mix it well with a spoon.
    • Don't stop mixing until the liquid starch completely dissolves.
  5. Add 2 tablespoons (28.3 grams) of iron oxide powder to your liquid starch. Before adding your starch to the glue mixture, add your iron powder. Use a clean spoon to stir the powder in until it's mixed well.
    • Keep in mind that adding iron oxide powder will turn your mixture black, so you won't be able to add colors!
    • Don't add your iron oxide powder directly to the water-glue mixture—it's much harder and messier to mix.
  6. Add your liquid starch-iron oxide mixture to the glue and knead it. Add the mixture into the glue and use your hands to pull, stretch, and twist it—this is called kneading. Continue doing this for about 3 to 5 minutes until your mixture is a large blob with a nice slimy consistency.
    • Wash your hands with soap prior to kneading your mixture.
  7. Spread your slime flat and put your magnet close to it. Find a smooth, clean, and flat surface and spread your putty over it like a pancake. Now, move your magnet close to the surface of your slime and it will jump upward and attach to it. Keep playing with it and have some fun!
  8. Store your slime in the refrigerator or throw it out. After you're done, seal your slime tightly in a sealable bag with as little air as possible. Afterward, store it in the refrigerator for later use. If you don't want to save it, throw it in the garbage.
    • Double-check that your refrigerator temperature is 35 to 40 °F (2 to 4 °C) before storing your slime.

Ingredients

Colorful Slime

  • ⁄2 cup (120 mL) of white or clear PVA glue
  • ⁄3 cup (79 mL) of liquid starch
  • ⁄2 cup (120 mL) of water

Magnetic Slime

  • 8 ounce (230 g) container of PVA glue
  • ⁄2 cup (120 mL) of liquid starch
  • 2 tablespoons (28.3 grams) of iron oxide powder

Tips

Warnings

  • Food coloring and iron oxide can stain your hands, so make sure you're ready to get messy!

Things You'll Need

Making Colorful Slime

  • Bowl
  • Measuring cups
  • Food coloring, confetti, and glitter (optional)

Creating Magnetic Slime

  • Measuring cups
  • Bowl
  • Plastic cup
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