Kinetic sand sludge – textured recipe for mud

Kinetic sand sludge – textured recipe for mud

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Great sensation for sensory play! Kinetic sandy mucus is elastic with a unique texture like no other mucus!

Kinetic sand sludge

Kinetic sand has always been a favorite booster of boredom in our house! The girls will play with it for hours – and I must admit that it is very relaxing to play even as an adult!

I just love how the kinetic sand flows through your fingers, but you can also shape it into shapes!

If you've been following our blog at all, you may have noticed that we do a lot slime recipes… Like… A LOT !!

So what would happen if we made a combination of kinetic sand and mud? YOU KNOW we had to find out !! And so this kinetic recipe for sand porridge was born!

stick pile purple kinetic sand mucus

What is kinetic sand?

Kinetic sand is an amazing feeling to feel like playing! At first glance it looks like sand, but it probably doesn't work that way!

Kinetic sand is sand that has been treated with silicone polymers so that the individual sand particles adhere to each other, but not surfaces such as your hands or your table.

I would compare the kinetic sand with oobleck in the sense that they both feel firm when you press on them, but will also flow or stretch when left alone.

Our kinetic sand slime doesn't actually use kinetic sand in the recipe, but it gets its name because the resulting slime feels like a combination of kinetic sand and silt!

a little girl playing with blue Chinese sand slime

Composition of sand sludge

To make it easier for you to create this recipe, we have included advertising links that can be purchased for some of the products used; disclosure policy available here,,

  • White school glue I'm usually saving money, but when it comes to slime, Elmer works best!
  • water
  • Food colors – Use a color that matches your play sand for a particularly vibrant mud! We love food coloring gel because the results are so bright and it only takes a few drops!
  • Liquid starch – Our mucus activator for this recipe
  • Play sand We used Crayola Play Sand for our slime and it turned out fantastic! If you use another brand, look for craft sand or art sand.

Crayola bags play sand, laying in the grass

How to make a kinetic sand sludge

First you will combine the glue and the water in a large mixing bowl. I always use a fairly large bowl, so when I kill my mucus, it stays in the bowl and doesn't spray everywhere.

When the adhesive mixture is nice and flowing, then you can add a few drops of food coloring. Seriously, just a few drops will do it! Otherwise, your mucus is more likely to stain your hands. You don't need to use food coloring at all, but it makes the mucus extra bright!

pouring liquid starch into a bowl with pink glue

We will now add our activator, which for this recipe is liquid starch. Add the liquid starch 1/4 cup at a time, stirring until your mucus is assembled into a cohesive ball.

pouring hot pink sand into the mucusmixing sandy slime in a bowl

Once mucus forms, it's time to mix in the play sand. I did this little by little – maybe 1/3 cup at a time – until the sand began to fall from the mud. Finish kneading by hand.

stretching of hot pink sand mucus

Why is my mucus sticky?

All the mucus will be a little sticky! However, if your mucus is so sticky that it's hard to play with because it just sticks to your hands and won't stay together, it's probably insufficiently activated mucus.

Simply repairing insufficiently activated mucus is to add a little activator (liquid starch) little by little until your mucus is no longer too sticky to play with.

Why does my mucus feel hard?

If your mucus feels hard or won't stretch, there are several possible reasons:

  1. Your mucus is too active (too much liquid starch).
  2. The sand you have used may contain additives that affect the texture of the mud.
  3. There is a lot of sand in your mud.

The best fix we've found to make the sand slurry elastic again is to put the mucus in a bowl of warm (not boiling!) Water and let it soak for a few minutes. Then you will massage the water in the mud until it becomes soft.

More troubleshooting tips: Watch this video to see how to fix over-activated mucus!

hot pink sandy slime spilling from a jar

Safety tips

  • Always observe children when making or playing with mucus.
  • This recipe for mucus is NOT edible.
  • We recommend that you play with your slime on a tray or silicone pad for easier cleaning. Avoid playing in an area with carpets or other porous materials where mucus can stick.

Read this below: How to Make Slime safe (Includes safety tips for preparing ALL types of mucus)

More of our favorite recipes for mucus

This sandy slime is a variant of our recipe for slime with liquid starch, which is one of our 3 main slots! Once you master these recipes for beginners, you can do almost anything!

Click here to learn how to make mucus using our three beginner recipes!

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Kinetic recipe for sand sludge (print copy)

stick pile purple kinetic sand mucus

Kinetic recipe for sand sludge

Great sensation for sensory play! Kinetic sandy mucus is elastic with a unique texture like no other mucus!

Keyword: sensor, sensory game, mucus, mucus recipe, STEM

author: Stacy aka Soccer Mom


  • 1/2 cup white glue
  • 1/2 cup water
  • 2 drops food colors optionally
  • 1/4 cup liquid starch
  • 1 cup play sand


  1. Combine 1/2 cup white glue and 1/2 cup water in a mixing bowl. Stir until combined and the glue becomes quieter.

  2. Add 2 drops of food coloring to match the color of your play sand and stir until well blended.

  3. Add 1/4 cup of liquid starch and stir until the glue starts to thicken. Add another 1/4 cup of liquid starch and stir until the mucus is assembled into a cohesive ball (but it will still be sticky).

  4. Add 2/3 of play sand and stir until all the sand is turned on. If your mucus is still sticky, you can add another 1/3 cup of play sand. It is good if a little sand falls out of the mud until you get the perfect texture.

Recipe video

Attach our recipe for sand slime on Pinterest:

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This is the BEST fluffy recipe for mucus !! 4 ingredients, super fluffy and silky smooth!

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Stacy aka Soccer Mom
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