3 Ways to Make Glow in the Dark Slime - wikiHow (2024)

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methods

Ingredients

1Making Borax or Liquid Starch Slime

2Making Cornstarch Slime

3Making Epsom Salt Slime

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Video

Tips and Warnings

Things You'll Need

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Article Summary

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Last Updated: January 6, 2023

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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

Borax or Liquid Starch Slime

  • 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

Cornstarch Slime

  • 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

Epsom Salt Slime

  • 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. 1

    Pour the hot water into a medium-sized bowl. The water doesn’t need to be boiling hot, but it should be warm to the touch.

  2. 3 Ways to Make Glow in the Dark Slime - wikiHow (5)

    2

    Add the clear glue. 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. 3 Ways to Make Glow in the Dark Slime - wikiHow (6)

    3

    Add the glow-in-the-dark paint and stir to combine. 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. 3 Ways to Make Glow in the Dark Slime - wikiHow (7)

    4

    Add the borax (available in most laundry aisles) to the separate bowl of hot water. Stir to combine.

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    • 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. 3 Ways to Make Glow in the Dark Slime - wikiHow (8)

    5

    Mix in the borax solution. Gradually add the borax solution into the paint solution, 2 tablespoons at a time, stirring continuously, until desired consistency is achieved.

  6. 3 Ways to Make Glow in the Dark Slime - wikiHow (9)

    6

    Store in a zipper bag or an airtight container. 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. 7

    Finished! 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. 3 Ways to Make Glow in the Dark Slime - wikiHow (12)

    1

    Pour the cornstarch into a medium-sized bowl. 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. 3 Ways to Make Glow in the Dark Slime - wikiHow (13)

    2

    Add the water to the bowl of cornstarch. Stir with a spoon or with hands to combine.

  3. 3 Ways to Make Glow in the Dark Slime - wikiHow (14)

    3

    Add the craft paint. 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. 4

    Finished! 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. 3 Ways to Make Glow in the Dark Slime - wikiHow (17)

    1

    Combine the water and Epsom salt in a medium bowl. Stir until most of the Epsom salt has dissolved into the water.

  2. 3 Ways to Make Glow in the Dark Slime - wikiHow (18)

    2

    Add the liquid glue and stir to combine. 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. 3 Ways to Make Glow in the Dark Slime - wikiHow (19)

    3

    Add the craft paint. 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. 4

    Finished! Enjoy your glow-in-the-dark slime!

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Community Q&A

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  • Question

    Is there a certain type of glow in the dark paint that I need to use?

    3 Ways to Make Glow in the Dark Slime - wikiHow (21)

    Community Answer

    No, you can use any kind of glow in the dark paint.

    Thanks! We're glad this was helpful.
    Thank you for your feedback.
    If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission.Support wikiHow

    YesNo

    Not Helpful 11Helpful 47

  • Question

    Can I just break a glow in the dark stick?

    3 Ways to Make Glow in the Dark Slime - wikiHow (22)

    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.

    Thanks! We're glad this was helpful.
    Thank you for your feedback.
    If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission.Support wikiHow

    YesNo

    Not Helpful 36Helpful 163

  • Question

    Can I make the slime a different color?

    3 Ways to Make Glow in the Dark Slime - wikiHow (23)

    Community Answer

    Yes, just use a different highlighter color, glow stick color, or glow in the dark color.

    Thanks! We're glad this was helpful.
    Thank you for your feedback.
    If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission.Support wikiHow

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      Video

      Tips

      • Slime will typically stay fresh for about two weeks. After that, it may begin to smell or lose consistency.[6]

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      • Slime can also make great party favors for a child’s party or serve as a fun Halloween gift.

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      • 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

      • Keep slime away from furniture or rugs.

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      • Borax is a soap product and can be toxic, so use with care if creating slime with small children.[7]

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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)

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      About This Article

      wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 45 people, some anonymous, worked to edit and improve it over time. This article has been viewed 201,466 times.

      170 votes - 71%

      Co-authors: 45

      Updated: January 6, 2023

      Views:201,466

      Categories: Putty Dough and Slime

      Article SummaryX

      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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      3 Ways to Make Glow in the Dark Slime - wikiHow (2024)
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