How to Make Slime with Borax

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This article was co-written by Lois Wade. Lois Wade has 45 years of experience in the craft industry, including sewing, crocheting, needlepoint embroidery, cross stitch, drawing and paper crafts. She has contributed to craft articles on wikiHow since 2007.

This article has been viewed 6,459 times.

Borax is commonly used in many slime recipes, as the solution of borax and water helps the slime to take its shape. Almost any type of slime can be made with solder, but there are some simple slimes that will be fun for anyone who makes them!

If you’re looking for a recipe for making slime without solder, check out how to make slime without baking soda.

Table of Contents

Ingredient

Regular Slime

1 teaspoon (5ml) of solder powder
1 cup (240ml) hot water
110 g glue
Food coloring (optional)

Styrofoam slime

1 teaspoon (5ml) of solder powder
1 cup (240ml) hot water
110 g glue
1/2 cup (120 ml) shaving cream
Food coloring (optional)

Transparent Slime

1 teaspoon (5ml) of solder powder
1 cup (240ml) hot water
110 g clear glue

Make regular slime

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Dilute the solder solution. Add 1 teaspoon of borax powder to 1 cup (240 ml) of hot water and stir until the solution becomes clear. Set the solution aside for later use. ^{[1] X Research Source}

Pour 110 g of glue into a bowl.

Add food coloring, if desired. If you want the slime to have color, you can choose a food coloring to add to the glue, then mix it thoroughly. Start with 1-2 drops of color – too much color mixing in the slime can stain the items.

Start adding the solder solution to the glue. Don’t pour it all at once – if you do, the slime will harden! Slowly add a few spoons at a time to the glue and mix well. The mixture will start to stick. ^{[2] X Research Source}

You probably won’t use all of the solder, so don’t be surprised if there’s still plenty left over.

Drain off excess water. After mixing the borax with the glue, you can see that there is some water left in the bowl. At that time, you just need to tilt the bowl to drain all the water. If you don’t, the texture of the slime may not be as expected.

Don’t try to mix water into slime – slime is still glue after mixing with borax.

Knead the slime with your hands. Once the slime is sticky and starts to come off the bowl, take it out and knead it with your hands. This step will make the slime less sticky. ^{[3] X Research Sources}

If the slime is still too sticky, add a teaspoon of the borax solution and continue stirring or kneading. Try not to stick to your hands too much.

Play with slimes! Once the slime has reached the desired consistency, you are free to play and stretch it. When you’re done playing, store it in an airtight container.

Make puffy slime

Dilute the solder solution. Add 1 teaspoon of borax powder to 1 cup (240 ml) of hot water and stir until the water is completely transparent. Set aside for later use.

Pour 110 g of glue into a bowl.

Mix in ½ cup (120 ml) of shaving cream. Mix glue and shaving cream together. The texture of the mixture after mixing will be spongy, dense and soft. ^{[4] X Research Sources}

Add a few drops of food, if you like. If you want to make colored puffy slime, you can choose a favorite food coloring and add a few drops to the glue and shaving cream mixture. Mix until no white streaks remain. Start with 1-2 drops of food coloring – if too much is mixed, the slime can stain the items.

If you’re using vegetable coloring to dye your slime, be sure to wear gloves when mixing – or your hands will get dirty!

Start mixing the solder solution into the mixture. Be careful, don’t pour it in all at once, as this will make the slime hard. Instead, add a few teaspoons at a time and stir. The slime will begin to stick and peel off the sides of the bowl. ^{[5] X Research Sources}

Usually you won’t use all the solder, so don’t be surprised if you still have a lot left over.

Knead the slime by hand Once the slime has solidified into a solid form, you can remove it from the bowl and start kneading it in your hands to prevent the slime from sticking.

If the slime is still too sticky when kneading, add a little molasses solution to the mixture and continue kneading. Be careful not to get too much on your hands.

Play with sllme! Once the slime has reached the right texture, you will have a fluffy and soft slime that you can freely mold, twist, and stretch as you like. Store in an airtight container when finished playing.

Make transparent slime

Dilute the solder solution. Add 1 teaspoon of borax powder to 1 cup (240 ml) of hot water and stir until the water is completely clear. Save this solution for later use.

Pour 110 g of clear glue into a bowl.

Start adding the solder solution. Avoid pouring it all in at once – the slime will harden if you do! Instead, carefully add the borax solution one teaspoon at a time and stir slowly so that the mixture does not foam. You should see the glue begin to set and peel off the sides of the bowl.

You probably won’t use all of the borax solution, so don’t fret if there’s too much left over.

Knead the slime by hand. Once the slime is sticky, remove it from the bowl and knead it with your hands. This step will help the slime not stick.

If the slime is still too sticky, add more solder and continue kneading, being careful not to get it on your hands.

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Leave the slime alone for a while. There is a chance the slime will turn white and not transparent when kneading. Leave the slime in an airtight container for a few days for the slime to clear again.

Play with slimes! Once the slime is clear, you are free to press on the slime, stretch, and play with it. Store the slime in an airtight container when you’re done playing.

Advice

You can make a variety of slimes with borax – try finding some other slime recipes for ideas.
Try mixing other materials into the slime before pouring the solder in. For example, if you add glitter or beads, you will have glitter slime or aquarium slime!
Watercolors can be used as a substitute for food coloring, but they can stain even more!
If you rub lotion into the slime, it will loosen up more.
Do you like scented slimes? Mix in scented soaps or balms before mixing in the solder solution.

Warning

Do not mix too much borax into the water. You will make the slime hard and can be harmful to the skin. ^{[6] X Research Sources}

Things you need

Bowl
Spoon or stirrer
Measuring tools