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Almost everyone, whatever their age, can enjoy playing with slime, especially if it glows in the dark. And making your own slime takes the experience to a whole new level. There are several different ways to make slime, and you can experiment with using different ingredients and different ingredient amounts to produce varying textures, colors, and consistencies.

Ingredients

  • 1 cup (250 ml; 8.4 fl oz) of hot water (but not boiling)
  • 4 ounces (113 g; 3/8 cup) of clear liquid non-toxic glue
  • 3 tablespoons of glow-in-the-dark craft paint
  • 1/3 cup (80 ml; 2.7 fl oz) of hot water in a small separate bowl
  • 2 teaspoons of borax or liquid starch
  • 2 cups (250 g; 8.8 oz) of cornstarch
  • 1 cup (250 ml; 8.4 fl oz) of warm water
  • 2-3 tablespoons of glow-in-the-dark craft paint
  • 1 cup (300 g; 10.5 oz) of Epsom salt
  • 1 cup (250 ml; 8.4 fl oz) of warm water
  • 1 cup (250 ml; 8.4 fl oz) of liquid glue
  • 2-3 tablespoons of glow-in-the-dark craft paint

Fluffy Slime

  • 1 cup (250 ml; 8.4 fl oz) of hot water
  • 4 Oz (113 g; 3/8 cup) of clear liquid non-toxic glue
  • 3 tablespoons of glow-in-the-dark craft paint
  • 1 cup (100 g; oz) of shaving cream
  • 2 teaspoons of borax or liquid starch OR contact lens solution
Method 1
Method 1 of 3:

Making Borax or Liquid Starch Slime

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  1. The water doesn’t need to be boiling hot, but it should be warm to the touch.
  2. Watermark wikiHow to Make Glow in the Dark Slime
    You can also use white glue, but the color of the slime won’t be as vivid. [1]
    • Choose non-toxic glue, particularly if children will be handling the slime.
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  3. Watermark wikiHow to Make Glow in the Dark Slime
    You can find glow-in-the-dark paint in most craft stores or in the crafting section of major stores.
    • You can also use highlighter ink as an alternative to the paint. Just pry off the bottom of the highlighter and drop the ink filament into the bowl of hot water and borax. With a gloved hand, squeeze the filament to extract the ink. [2]
    • Note that if using highlighter ink, it may only glow under a blacklight.
  4. Watermark wikiHow to Make Glow in the Dark Slime
    Stir to combine.
    • As an alternative to the borax and water, you can simply add 1/2 cup (125 ml; 4.2 fl oz) liquid starch, also available in the laundry aisle. [3]
  5. Watermark wikiHow to Make Glow in the Dark Slime
    Gradually add the borax solution into the paint solution, 2 tablespoons at a time, stirring continuously, until desired consistency is achieved.
  6. Watermark wikiHow to Make Glow in the Dark Slime
    If you don’t store the slime properly, it will begin to dry out.
    • Leaving the slime in an open container just overnight, though, can help the consistency become more rubbery if so desired. [4]
  7. Enjoy your glow-in-the-dark slime!
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Method 2
Method 2 of 3:

Making Cornstarch Slime

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  1. Watermark wikiHow to Make Glow in the Dark Slime
    You can also use less cornstarch to produce a more watery slime .
    • Because you’re using cornstarch rather than borax or liquid starch, this slime is a safe alternative for small children.
  2. Watermark wikiHow to Make Glow in the Dark Slime
    Stir with a spoon or with hands to combine.
  3. Watermark wikiHow to Make Glow in the Dark Slime
    Continue stirring until the desired consistency is achieved. Glow-in-the-dark craft paint is available at most craft stores as well as in the crafting section of many major stores.
    • As an alternative to glow-in-the-dark paint, you can instead use the ink from a highlighter to color your slime. Pry off the bottom of a highlighter and drop the ink filament that’s inside the highlighter tube into the bowl of water and cornstarch. With a gloved hand, squeeze the filament to extract the ink. [5]
    • Note that if using highlighter ink, it may only glow under a blacklight.
    • You can also add drops of food coloring to change the hue of the slime, just remember that the food coloring may make the slime glow a little less.
  4. Enjoy your glow-in-the-dark slime!
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Method 3
Method 3 of 3:

Making Epsom Salt Slime

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  1. Watermark wikiHow to Make Glow in the Dark Slime
    Stir until most of the Epsom salt has dissolved into the water.
  2. Watermark wikiHow to Make Glow in the Dark Slime
    Clear glue will result in a brighter color of slime than will white glue.
    • Remember to choose non-toxic glue if small children will be involved.
  3. Watermark wikiHow to Make Glow in the Dark Slime
    Stir the mixture to combine and continue stirring until the desired consistency is achieved.
    • Highlighter ink can be an alternative to craft paint. Simply pull the bottom off a highlighter and drop the ink filament into the slime mixture. Using gloves, squeeze the ink filament to get the ink out.
    • Be aware, though, that highlighter ink may only glow under a blacklight.
  4. Enjoy your glow-in-the-dark slime!
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Community Q&A

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Add New Question
  • Question
    Is there a certain type of glow in the dark paint that I need to use?
    Community Answer
    No, you can use any kind of glow in the dark paint.
  • Question
    Can I just break a glow in the dark stick?
    Community Answer
    Yes, but if you are going to do that you will need to put it in a bowl, wear gloves, and mix the glow stick liquid with the slime.
  • Question
    Can I make the slime a different color?
    Community Answer
    Yes, just use a different highlighter color, glow stick color, or glow in the dark color.
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      Tips

      • Slime will typically stay fresh for about two weeks. After that, it may begin to smell or lose consistency. [6]
      • Slime can also make great party favors for a child’s party or serve as a fun Halloween gift.
      • For brighter slime, add several drops of food coloring. Note that using food coloring can make the slime lose some of its glow, though.
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      Warnings

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      Things You’ll Need

      • Medium bowl
      • Bottle of clear liquid non-toxic glue
      • Glow-in-the-dark paint or highlighter ink
      • Borax, liquid starch, cornstarch, or Epsom salt
      • Food coloring (optional)
      • Latex gloves (optional)

      About This Article

      Article Summary X

      To make glow in the dark slime with liquid starch, pour hot water into a medium-sized bowl. Stir in clear, non-toxic glue and glow-in-the-dark paint, then gradually add the liquid starch, stirring continuously, until your slime reaches the desired consistency. Store your slime in a resealable plastic bag or an airtight container, or leave it uncovered for 1 night if you want the slime to have a more rubbery consistency. If you prefer, you can substitute Borax and water for the liquid starch. If you want to learn how to use Epsom salt for your glow in the dark slime, keep reading the article!

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