This article was reviewed by Summer Ames and by wikiHow staff writer, Aly Rusciano. Summer Ames is a slime expert and the founder of Slime Community based in Charleston County, South Carolina. Summer patented the Slime Baking Kit, which is a nonedible sensory kit made with slime-making ingredients that look exactly like real baking components. Her slime kits are made with premium non-toxic ingredients, including skin-safe fragrance oils, food-grade dye, and non-toxic glue and clay. With a combined 345K followers across her social media channels, Summer has been able to share the joy of slime and build an online community.
There are 10 references cited in this article, which can be found at the bottom of the page.
This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources.
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Who doesn’t love slime? It’s squishy, stretchy, and oh-so-slimy! It’s also super cheap, easy to make and, incredibly versatile and customizable. In this article, we’ll teach you 5 simple ways to make slime at home. All you need is a sticky slime base (usually glue) and a slime activator (typically borax or contact solution). Keep reading to learn how you can make your own slime with ingredients you likely already have lying around!
Steps
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Mix two 4 oz (118 mL) bottles of washable glue and 1 tsp (5 g) of baking soda. The color of the glue is completely up to you. Use colored glue, glitter glue, or plain school glue (as long as it’s washable, it’s perfect for slime).[1] Mix the glue and baking soda in a large bowl with a spoon or popsicle stick until they’re smooth.[2]
- Elmer’s School Glue is a popular brand for making slime.
- Only have white glue on hand? No worries! Try spicing it up by dying it with food coloring or adding chunky or fine glitter.
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Add 2 US tbsp (30 mL) of contact solution into the mixture. Saline or contact solution activates the slime, giving it that stretchy and stringy texture. Mix everything slowly until the contact solution is well incorporated and the mixture starts to solidify and form a ball.[3]
- Double check that your contact solution contains boric acid (most brands do). Otherwise, the slime may not form the correct "slimy" consistency.
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Knead the slime until it’s your preferred texture. Pick up the slime ball and squeeze it between your hands until it becomes smooth. For a slimier texture, add another 1⁄2 US tbsp (7.4 mL) of contact solution. If your slime is too slimy, sprinkle more baking soda over it.[4]
- Store your finished slime in an airtight container at room temperature until it dries out or hardens.
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Add texture to your slime (optional). For even more of a sensory experience, try adding small figurines, foam balls, or pom poms to the slime. This can shorten the life of the slime but make it even more fun to play with![5]
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Mix 4 US tbsp (59 mL) of borax powder and 1 cup (240 mL) of warm water. Put these ingredients in a large mixing bowl and stir until the borax is completely dissolved.[6] This will be your slime’s activator.[7]
Slime is harmful if consumed. Therefore, parents are encouraged to supervise children playing and making slime at all times.
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Mix 1⁄2 cup (120 mL) of water and 1 cup (240 mL) of liquid craft glue separately. In another bowl, mix these ingredients until well combined. This will be the base of your slime.
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Add food coloring to the glue mixture (optional). Choose any color of food coloring you like! Start with a few drops of food coloring, then stir. If you want the color to be brighter, add a few more drops. Just keep in mind that the more color you add, the greater the chance the slime will dye your hands.[8]
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Combine the borax mixture and glue mixture. Dump the borax mixture into the glue mixture slowly, stirring occasionally.[9] If you add too much too fast, the slime could harden and lose its elasticity. Keep mixing until the slime starts pulling away from the side of the bowl.[10]
- Start kneading the slime with your hands at this point. It might be sticky, but keep mixing. Add more activator (borax) if the slime doesn’t thicken.[11]
- If you make smaller amounts of slime in separate containers, evenly divide the borax solution among the containers.
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Take the slime out of the bowl and have fun! Once the slime pulls away from the bowl and doesn’t stick to your hands, it’s ready to be played with. If the slime doesn’t stretch but rips while you play with it, you may need to begin the process over. If the slime is too sticky and doesn’t form a ball, try adding more borax and water.[12]
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Mix 3⁄4 cup (180 mL) of cornstarch with 2 cups (470 mL) of vegetable oil. Also known as oobleck, this slime moves all on its own! To start, add your cornstarch and vegetable oil to a large bowl and stir them together.[13]
When making this type of slime, it's possible to substitute the cornstarch with arrowroot or tapioca powder.
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Put the mixture in the refrigerator for 1 hour, then stir. Place the bowl in the refrigerator and leave it there until the mixture is fully chilled (about 1 hour). The cold temperature will help the slime solidify and reach the ideal consistency. Once the hour is up, remove the mixture and stir it well to recombine all the ingredients (some separation is normal).[14]
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Rub a block of styrofoam on a rug to create a static charge. Any size of styrofoam works as long as you can hold it in your hand. Run the styrofoam on your hair or a carpet several times. This builds static electricity.[15]
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Pour the slime slowly into another container next to the styrofoam. Place the piece of styrofoam just in front of the slime before you start pouring (roughly about 1 in (2.5 cm) away). The static electricity will cause the slime to stop flowing and appear to take on a life of its own.[16]
- Try moving or wiggling the styrofoam around the slime—the slime will follow it!
- Rub the styrofoam back on your hair or carpet to give it more charge as you play.
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Mix 1 cup (240 mL) of soap flakes with 4 cups (950 mL) of hot water. Carefully add the hot water to a large bowl. Measure the soap flakes and place them into the bowl with the water. Stir thoroughly until the flakes fully dissolve.[17]
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Add a few drops of food coloring (if desired). Food coloring is optional, but it may make the slime more fun! The more food coloring you add, the brighter your slime will be.
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Let the mixture stand for up to an hour, then stir vigorously. Letting the mixture rest allows it to reach the desired gelatinous consistency.[18] Once the hour is up, mix the mixture as quickly as you can. Continue mixing until the mixture is slimy to the touch and easy to pour. Then, play with it as much as you’d like!
- Don’t be alarmed if the mixture starts to froth up as you stir—this is normal.
- Store your slime in an airtight container away from direct sunlight and heat, and make a new batch when it hardens.
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Mix a can of sweetened condensed milk and 1 tbsp (10 g) of cornstarch. Place a pan on your stovetop. Add 1 tbsp (10 g) of cornstarch to the milk and stir until the ingredients are well-combined.[19]
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Heat the mixture over low heat and remove once it thickens. Set your burner to low and constantly stir the mixture as it heats up. If you don’t stir continuously, the mixture may stick to your pan and burn. Remove the mixture from the heat once it becomes gelatinous and hard to stir.[20]
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Add 10 to 15 drops of food coloring to the mixture. Choose any color you want! Green is always a classic, but experiment or allow your kids to pick a color. The more food coloring you add, the brighter your slime will be.[21]
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Allow the mixture to cool completely before playing or eating it. Before you start playing with your slime, let it cool down so it’s safer to touch (about an hour or so). Once cool, remove the slime from the pan and squeeze it between your hands, taking an occasional taste.[22]
- This slime may stain surfaces, so lay down a placemat or paper towel before playing.
Expert Q&A
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QuestionWhat are the best slime add-ins?
Summer AmesSummer Ames is a slime expert and the founder of Slime Community based in Charleston County, South Carolina. Summer patented the Slime Baking Kit, which is a nonedible sensory kit made with slime-making ingredients that look exactly like real baking components. Her slime kits are made with premium non-toxic ingredients, including skin-safe fragrance oils, food-grade dye, and non-toxic glue and clay. With a combined 345K followers across her social media channels, Summer has been able to share the joy of slime and build an online community.
Slime Expert
It’s a mix of trial and error and experimentation. For example, adding vegetable glycerin makes slime stretchier, while instant snow can create unique textures. Watching videos and experimenting with random objects, like beads or straws, can lead to cool results. Adding scents or colors also transforms the slime experience. -
QuestionWhat's the best way to store slime?
Amy ShereeAmy Sheree is a Slime Expert based in Destin, Florida. She is the founder of Amma Slimes, an online slime retailer selling her handcrafted slime products. She started Amma Slimes in 2022, after spending months developing her recipes and products. Prior to running her business, she had a career as a food stylist and recipe developer, which informed her approach to perfecting her products and creating content. She sells a variety of slime types and textures, including thick and glossy, snow fizz, silica sand, her proprietary sizzly butter slime, and more. Many of her slime recipes are modeled after popular desserts and treats, like orange sherbet, apple crisp, and more.
Slime Expert
Slimes tend to expand after play, so you can store any leftover portions in an airtight container, like Tupperware or a Ziploc bag. That prevents air exposure, which dries it out. Once the slime settles back to its original size after a few days, you can return the leftovers to the original jar it came it. Always keep it sealed to avoid drying out. If it does harden, a bit of vinegar can help revive it. -
QuestionHow can you make your slime last long?
Community AnswerStore it in an airtight container or a zip lock bag. If it's already hardened then add baby oil to the slime.
Video
Reader Videos
Tips
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Don’t have food coloring to color your slime? Use watercolor paints or washable markers.Thanks
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Add a drop or 2 of essential oils to your slime to make it smell nice.Thanks
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Get slime out of fabric using a stain remover or white vinegar and water solution.Thanks
Tips from our Readers
- When playing with slime, try not to wear any fake nails—they may stick to the slime, which will be difficult to remove. Your nails will be ruined.
- Make sure your hands are moisturized when you play with your slime—this prevents it from sticking to your dry hands.
Warnings
- Borax can cause skin irritation, so try using a different slime method if you have sensitive skin.Thanks
- Avoid putting slime on fabric or carpet as it can stain.Thanks
- Don’t consume slime unless it’s made out of edible ingredients.Thanks
Things You'll Need
3-Ingredient Slime
- 2 4 oz (110 g) containers of washable liquid glue
- 1 tsp (4.9 mL) of baking soda
- 2 US tbsp (30 mL) of contact solution
Borax Slime
- 1⁄2 cup (120 mL) of craft glue
- 1 cup (240 mL) of warm water
- Food coloring (optional)
- 1 tablespoon (15 mL) of borax powder
“Living” Slime
- 3⁄4 cup (180 mL) of cornstarch
- 2 cups (470 mL) of vegetable oil
- A piece of styrofoam
Soap Flake Slime
- 1 cup (240 mL) of soap flakes
- 4 cups (950 mL) of hot water
- Food coloring (optional)
Edible Slime
- 1 can (14 oz.) of sweetened condensed milk
- 1 tablespoon (15 mL) of cornstarch
- Food coloring (optional)
References
- ↑ Summer Ames. Slime Expert. Expert Interview
- ↑ https://www.thekitchn.com/how-to-make-3-ingredient-slime-without-borax-245904
- ↑ https://www.thekitchn.com/how-to-make-3-ingredient-slime-without-borax-245904
- ↑ https://www.thekitchn.com/how-to-make-3-ingredient-slime-without-borax-245904
- ↑ https://www.thekitchn.com/how-to-make-3-ingredient-slime-without-borax-245904
- ↑ Summer Ames. Slime Expert. Expert Interview
- ↑ https://www.pbs.org/parents/crafts-and-experiments/homemade-gak
- ↑ https://www.pbs.org/parents/crafts-and-experiments/homemade-gak
- ↑ Summer Ames. Slime Expert. Expert Interview
- ↑ https://www.pbs.org/parents/crafts-and-experiments/homemade-gak
- ↑ Summer Ames. Slime Expert. Expert Interview
- ↑ https://www.acs.org/education/whatischemistry/adventures-in-chemistry/experiments/slime.html
- ↑ https://www.sciencefun.org/kidszone/experiments/electrical-goo-electricity-science-experiment/
- ↑ https://sciencenotes.org/cool-electrostatic-slime-reacts-styrofoam/
- ↑ https://www.sciencefun.org/kidszone/experiments/electrical-goo-electricity-science-experiment/
- ↑ https://sciencenotes.org/cool-electrostatic-slime-reacts-styrofoam/
- ↑ https://youtu.be/x-Q0ilS0-mI?t=5
- ↑ https://www.playcentre.org.nz/wp-content/uploads/2020/03/Playcentre-recipes-5-Slime.pdf
- ↑ https://lemonlimeadventures.com/stretchy-edible-slime/
- ↑ https://www.momswhothink.com/how-to-make-edible-slime/
- ↑ https://www.momswhothink.com/how-to-make-edible-slime/
- ↑ https://www.momswhothink.com/how-to-make-edible-slime/
About This Article
To make basic slime, first mix 3/4 cups of water (180 milliliters) with 1/2 a cup (125 milliliters) of glue. Add a few drops of food coloring if you want colored slime. Then, in a separate bowl, mix 1 cup of water (240 milliliters) with 1 teaspoon of borax until it’s fully dissolved. This mixture is the slime activator. Slowly add 1 teaspoon of the slime activator at a time, stirring after each addition, until the slime starts to thicken. Finally, knead the slime until the ingredients are fully combined. If your slime still feels a bit too slimy, add a little more of the slime activator until it feels right. For more tips, including how to make edible slime, read on!
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