55+ Easy Step-by-Step Guide How to Make Slime Activator

Slime activator is a key ingredient used to turn basic slime ingredients like glue into stretchy, gooey slime. It’s usually a solution containing borax or other compounds, which reacts with the glue to form the slime’s signature texture. When added to glue, it thickens and solidifies the mixture, making it less sticky and more malleable. Slime activators are essential for the DIY slime-making process and come in various forms, such as liquid activator or saline solution.

How to Make Slime Activator Using Borax Solution

Borax solution is one of the most common and effective activators for slime, resulting in a smooth and stretchy consistency.

Materials Used:

• Borax powder
• Warm water
• A mixing bowl
• A spoon or stir stick

Steps:

1. In a bowl, mix 1 teaspoon of Borax powder with 1 cup of warm water.
2. Stir the solution until the Borax is completely dissolved.
3. Your Borax activator is ready to use! Add it slowly to your slime mixture until it reaches your desired consistency.

How to Make Slime Activator Using Baking Soda and Contact Solution

Baking soda and contact solution combine to make a gentle activator for slime, perfect for sensitive hands.

Materials Used:

• Baking soda
• Contact lens solution (containing boric acid)
• Water
• A bowl

Steps:

1. Mix 1 teaspoon of baking soda with 1 tablespoon of water in a bowl.
2. Add 1 tablespoon of contact lens solution.
3. Stir well until the solution becomes thick and gooey, forming a gel-like consistency.
4. Add this activator to your slime mixture gradually until it thickens and reaches the desired texture.

How to Make Slime Activator Using Cornstarch

Cornstarch is another household ingredient that can help activate slime, especially when you need a thicker, dough-like texture.

Materials Used:

• Cornstarch
• Water
• A bowl

Steps:

1. Add 1 tablespoon of cornstarch into a bowl.
2. Gradually pour in small amounts of water while stirring.
3. Continue until the mixture turns into a smooth, non-sticky texture that’s perfect for activating your slime.

How to Make Slime Activator with Laundry Detergent

Some laundry detergents contain ingredients that work well as a slime activator, especially when paired with glue.

Materials Used:

• Liquid laundry detergent
• A mixing bowl
• Water

Steps:

1. Pour 1 tablespoon of liquid laundry detergent into a mixing bowl.
2. Add a small amount of water and mix thoroughly.
3. Gradually add the mixture to your slime until it thickens.

How to Make Slime Activator Using Gelatin

Gelatin can help create a unique texture for slime and works as a fun and creative activator.

Materials Used:

• Gelatin powder
• Warm water
• A bowl

Steps:

1. Add 1 tablespoon of gelatin powder to 1/2 cup of warm water.
2. Stir until the gelatin dissolves completely.
3. Let it sit for a few minutes to thicken.
4. Use this mixture as an activator by adding it to your slime gradually.

How to Make Slime Activator Using Shaving Cream and Baking Soda

This activator produces a fluffy, airy slime that is light and soft to the touch.

Materials Used:

• Shaving cream
• Baking soda
• Contact solution

Steps:

1. Mix 1/2 cup of shaving cream with 1/2 tablespoon of baking soda in a bowl.
2. Stir the mixture well until fluffy.
3. Add contact solution one tablespoon at a time, stirring until your slime forms.

How to Make Slime Activator Using White Vinegar

Vinegar is a natural and safe activator that can create slime with a slightly stretchy, smooth texture.

Materials Used:

• White vinegar
• Baking soda
• Water
• A bowl

Steps:

1. Mix 2 tablespoons of vinegar with 1 tablespoon of baking soda in a bowl.
2. Add 1/4 cup of water and stir until the mixture begins to fizz.
3. Pour the fizzing solution into your slime mixture and stir to activate it.

How to Make Slime Activator Using Cream of Tartar

Cream of tartar is a surprising but effective ingredient that can work as an activator for making slime.

Materials Used:

• Cream of tartar
• Baking soda
• Water
• A bowl

Steps:

1. Mix 1 teaspoon of cream of tartar with 1/2 teaspoon of baking soda in a bowl.
2. Slowly add water while stirring to form a paste-like consistency.
3. Gradually add it to your slime mixture and mix until the slime activates.

How to Make Slime Activator Using Salt

Salt can also be used as a slime activator, helping the mixture bond and solidify.

Materials Used:

• Table salt
• Warm water
• A bowl

Steps:

1. Add 1 tablespoon of salt to 1/2 cup of warm water in a bowl.
2. Stir until the salt dissolves.
3. Pour the salt solution into your slime mixture and stir until it thickens.

How to Make Slime Activator with Epsom Salt

Epsom salt can be used to thicken slime, making it stretchier and more pliable.

Materials Used:

• Epsom salt
• Warm water
• A bowl

Steps:

1. Mix 2 tablespoons of Epsom salt with 1/2 cup of warm water.
2. Stir until the salt dissolves completely.
3. Add this mixture to your slime slowly, stirring as you go.

How to Make Slime Activator with Gelatin and Cornstarch

Combining gelatin and cornstarch creates a unique activator that helps produce a stretchy, smooth texture for slime.

Materials Used:

• Gelatin powder
• Cornstarch
• Water
• A bowl

Steps:

1. Mix 1 teaspoon of gelatin with 2 tablespoons of cornstarch in a bowl.
2. Add a little water and stir until you have a thick, smooth consistency.
3. Gradually pour this into your slime until it activates.

How to Make Slime Activator Using Hand Soap and Baking Soda

Hand soap combined with baking soda helps form a thick, non-sticky slime activator.

Materials Used:

• Liquid hand soap
• Baking soda
• Water
• A bowl

Steps:

1. Pour 1 tablespoon of hand soap into a bowl.
2. Add 1 teaspoon of baking soda and stir until it forms a paste.
3. Gradually add water while stirring until the activator is smooth and ready to use.

How to Make Slime Activator Using Baby Lotion

Baby lotion is a softer activator that produces a stretchy and smooth slime with a pleasant scent.

Materials Used:

• Baby lotion
• Baking soda
• Contact lens solution

Steps:

1. Mix 2 tablespoons of baby lotion with 1 teaspoon of baking soda in a bowl.
2. Stir until the lotion and baking soda combine well.
3. Slowly add contact lens solution to the mixture, stirring until slime forms.

How to Make Slime Activator with Yogurt

Yogurt can create an extra-smooth, creamy slime when used as an activator.

Materials Used:

• Plain yogurt
• Baking soda
• Contact lens solution

Steps:

1. In a bowl, mix 2 tablespoons of plain yogurt with 1 teaspoon of baking soda.
2. Add contact lens solution gradually and stir until the slime thickens.

How to Make Slime Activator Using Toothpaste and Baking Soda

Toothpaste can be used as an activator when combined with baking soda to form a stretchy and smooth slime.

Materials Used:

• Toothpaste
• Baking soda
• Water
• A bowl

Steps:

1. Add 1 tablespoon of toothpaste to a bowl.
2. Mix in 1 teaspoon of baking soda.
3. Add water slowly and stir until the mixture thickens and becomes slime-like.

How to Make Slime Activator Using Sodium Tetraborate Solution

Sodium tetraborate is a powerful activator commonly used in slime recipes for a quick reaction.

Materials Used:

• Sodium tetraborate
• Water
• A bowl

Steps:

1. Mix 1 teaspoon of sodium tetraborate with 1 cup of water.
2. Stir until it dissolves completely.
3. Slowly add this solution to your slime to achieve the perfect consistency.

How to Make Slime Activator Using Cornstarch and Water

Cornstarch and water can be used to form a thick paste that activates slime for a dough-like texture.

Materials Used:

• Cornstarch
• Water
• A bowl

Steps:

1. Mix 1/4 cup of cornstarch with 2 tablespoons of water.
2. Stir until a thick paste forms.
3. Slowly incorporate this paste into your slime mixture until it activates and thickens.

How to Make Slime Activator Using Salt and Baking Soda

A combination of salt and baking soda works well to activate slime, resulting in a firmer texture.

Materials Used:

• Salt
• Baking soda
• Water
• A bowl

Steps:

1. Mix 1 tablespoon of salt with 1/2 teaspoon of baking soda in a bowl.
2. Add 1/4 cup of water and stir until the salt dissolves.
3. Gradually add this mixture to your slime and stir until it forms.

How to Make Slime Activator with Liquid Starch

Liquid starch works as an activator, helping form smooth and stretchable slime.

Materials Used:

• Liquid starch
• A bowl

Steps:

1. Pour 1/4 cup of liquid starch into a bowl.
2. Slowly add it to your slime mixture while stirring.
3. Continue mixing until the slime reaches your desired consistency.

How to Make Slime Activator Using Aloe Vera Gel

Aloe vera gel creates a smoother, more moisturizing slime when used as an activator.

Materials Used:

• Aloe vera gel
• Baking soda
• Contact lens solution

Steps:

1. Mix 2 tablespoons of aloe vera gel with 1 teaspoon of baking soda in a bowl.
2. Slowly add contact lens solution, stirring until the slime becomes firm.

How to Make Slime Activator Using Gelatin and Water

Gelatin and water combined create a firm slime activator for dense, sturdy slime.

Materials Used:

• Gelatin
• Water
• A bowl

Steps:

1. Add 1 tablespoon of gelatin to 1/4 cup of water in a bowl.
2. Stir until the gelatin dissolves and forms a thick consistency.
3. Gradually add it to your slime mixture.

How to Make Slime Activator Using Sodium Borate Solution

Sodium borate, also known as borax, creates the ideal stretchy texture when used as a slime activator.

Materials Used:

• Sodium borate powder
• Water
• A bowl

Steps:

1. Dissolve 1 teaspoon of sodium borate in 1 cup of warm water.
2. Stir until completely dissolved.
3. Slowly add this solution to your slime mixture, stirring until the slime forms.

How to Make Slime Activator Using Powdered Laundry Starch

Powdered laundry starch can be used as a safe and effective activator for slime with a firmer texture.

Materials Used:

• Powdered laundry starch
• Water
• A bowl

Steps:

1. Mix 2 tablespoons of powdered laundry starch with 1/4 cup of water in a bowl.
2. Stir until the solution thickens.
3. Slowly add it to your slime mixture to activate.

How to Make Slime Activator with PVA Glue

PVA glue can help activate slime when combined with other ingredients for more control over texture.

Materials Used:

• PVA glue
• Borax solution
• A bowl

Steps:

1. Add 1/4 cup of PVA glue to a bowl.
2. Slowly pour in Borax solution while stirring until the slime thickens.

How to Make Slime Activator Using Essential Oils

Essential oils can create slime activators with pleasant fragrances, perfect for sensory play.

Materials Used:

• Essential oils
• Baking soda
• Water

Steps:

1. Add a few drops of your favorite essential oil to a bowl.
2. Mix with 1 teaspoon of baking soda.
3. Slowly add water, stirring until it activates the slime.

How to Make Slime Activator Using Honey

Honey is a natural activator that creates a glossy and sticky slime texture.

Materials Used:

• Honey
• Cornstarch
• Water

Steps:

1. Mix 1 tablespoon of honey with 1 tablespoon of cornstarch in a bowl.
2. Add water gradually, stirring until you have a thick consistency.

How to Make Slime Activator Using Liquid Gelatin

Liquid gelatin can be a gooey but effective activator for slime.

Materials Used:

• Liquid gelatin
• Water

Steps:

1. Mix 1/2 tablespoon of liquid gelatin with 1/4 cup of water.
2. Stir until it thickens.
3. Add this mixture slowly to your slime.

How to Make Slime Activator with Dish Soap

Dish soap combined with baking soda works well as a slime activator.

Materials Used:

• Dish soap
• Baking soda
• Water

Steps:

1. Add 1 tablespoon of dish soap to a bowl.
2. Stir in 1 teaspoon of baking soda.
3. Slowly add water and mix until your slime reaches the right consistency.

How to Make Slime Activator Using Powdered Sugar

Powdered sugar can help thicken your slime when used correctly.

Materials Used:

• Powdered sugar
• Water

Steps:

1. Mix 2 tablespoons of powdered sugar with 1/4 cup of water.
2. Stir until the mixture becomes smooth.
3. Gradually add this activator to your slime mixture.

How to Make Slime Activator Using Coconut Oil

Coconut oil creates a smooth, silky texture for slime when combined with other activators.

Materials Used:

• Coconut oil
• Baking soda
• Water

Steps:

1. Mix 1 tablespoon of coconut oil with 1 teaspoon of baking soda.
2. Add a little water and stir until the consistency becomes thick enough to form slime.

Variations of Slime Activators

Slime activators play a crucial role in turning simple ingredients like glue into the stretchy, squishy slime that kids and adults alike enjoy. While the most common activator used in slime-making is borax, there are a variety of alternatives that can also work effectively. Here are some popular variations to consider:

1. Borax Solution as an Alternative

• What it is: Borax, a common household cleaner, can be dissolved in water to create a solution that acts as an activator for slime.
• How it works: When added to glue, the borax solution links the molecules of the glue, creating the stretchy and firm texture of slime.
• Pros: Borax is widely available and inexpensive.
• Cons: Some people may be sensitive to borax, especially if it comes in direct contact with skin, so caution is needed during use.
• Alternative Usage: Borax solution can be mixed with other ingredients like shaving cream or food coloring to create different textures or colors.

2. Other Liquid Activators (Laundry Starch or Liquid Starch)

• What it is: Liquid starch is a laundry product that can be used as a slime activator.
• How it works: The starch contains a blend of chemicals that, when mixed with glue, causes the molecules to bond and form slime.
• Pros: It’s easy to use and readily available in most grocery or home goods stores.
• Cons: It may not create as firm of a slime as borax or other activators, resulting in a stretchier or more runny texture.
• Alternative Usage: Liquid starch can be combined with other ingredients like baking soda or cornstarch to fine-tune the consistency of the slime.

Tips and Troubleshooting for Making Slime

Creating slime can be a fun and creative process, but it can also come with a few challenges. Whether you’re new to slime-making or just looking for ways to perfect your technique, here are some helpful tips and common troubleshooting solutions to ensure your slime turns out just right.

1. Avoid Over-Activating the Slime
Over-activating your slime is a common mistake that can make it too stiff or rubbery. To avoid this:

• Add activator slowly, stirring as you go.
• Start with a small amount, and keep adding until the slime reaches your desired consistency.
• If the slime becomes too stiff, try kneading it with a little warm water to soften it.

2. Troubleshooting Common Mistakes

• Slime Not Coming Together: If your slime is too runny and doesn’t form, you may not have added enough activator. Add more in small increments until it begins to clump together.
• Slime Too Runny: If your slime is too sticky or liquidy, add a little more activator. Be sure to add it gradually and mix thoroughly to avoid over-activating.
• Slime Too Firm or Stiff: This happens if you’ve added too much activator. Try kneading the slime with some lotion or baby oil to restore flexibility.

3. Slime Activator Suggestions for Different Types of Slime
Different types of slimes require specific activators for the perfect texture. Here’s what works best for each:

• Fluffy Slime: Combine shaving cream with glue to get that light and airy texture. Use a saline solution or contact lens solution as your activator for the perfect fluffy consistency.
• Crunchy Slime: For a satisfying crunch, add foam beads or crunchy elements into your slime mixture. You can use the standard borax solution as an activator, or liquid starch works well for a firmer, more textured slime.
• Clear Slime: Make sure to use a clear glue for a transparent effect. Use less activator than usual, as clear slime tends to firm up faster than other types.
• Butter Slime: To get that smooth, buttery texture, mix in some clay (like model magic). Use saline solution as an activator and be careful not to overwork it so it remains soft.

FAQ

What is slime activator?

Slime activator is a solution that helps transform slime ingredients like glue into stretchy and smooth slime. It is typically made from ingredients like baking soda and contact lens solution.

How do you make slime activator?

To make slime activator, mix 1/2 teaspoon of baking soda with 1 tablespoon of contact lens solution. Stir well until it’s fully combined. This will create the activator you need to turn your slime mixture into the perfect consistency.

Can you use other ingredients for slime activator?

Yes, you can also use saline solution or a mixture of borax and water as activators. Just make sure you’re using the right amounts of each ingredient to avoid making the slime too runny or too stiff.

How much slime activator should I add to the slime mixture?

Start with small amounts of activator, around 1 tablespoon at a time, and knead it into the slime. Add more as needed until the slime reaches your desired texture and doesn’t stick to your hands.