Making homemade slime recipes is all about having the right slime activator and of course the right glue. I am going to share with you my favorite slime activator list to get you started, and I will share some tips for making the easiest slime ever with these different slime activators. We want you to have all the slime making info you need right at your finger tips.
BEST SLIME ACTIVATOR LIST FOR MAKING HOMEMADE SLIME WITH KIDS!
So what exactly is a slime activator? A slime activator is one of the supplies needed to be part of the chemical reaction that takes place that forms the slime. The other important piece is the PVA school glue. Read on below.
THE SCIENCE BEHIND THE HOMEMADE SLIME RECIPE
What’s the science behind the slime? The borate ions in the slime activator mix with the PVA (polyvinyl-acetate) glue and forms this cool stretchy substance. This is called cross linking! Also good to know is that boron is an element and borate is mined for in the US and other countries.
The glue is a polymer and is made up of long, repeating, and identical strands or molecules. These molecules with flow past one another keeping the glue in a liquid state.
When you add the borate ions to the mixture, it starts to connect these long strands together. They begin to tangle and mix until the substance is less like the liquid you started with and is thicker and rubberier like slime!
Picture the difference between wet spaghetti as it slides out of the pan and leftover spaghetti the next day. As the slime forms the tangled molecule strands are much like the clump of spaghetti!
Slime also likes the warmth of your hands!
THE BEST SLIME ACTIVATOR LIST
Here are our favorite basic slime making recipes for making really awesome homemade slime. Please note that the common ingredients in these slime activators are all derived from borates and are in the boron family. If you want to get really specific, you would not label any of these slime activators as borax free because of this.
At the bottom of this page find a FREE SLIME RECIPES CHEAT SHEET to download and print!
BORAX POWDER SLIME ACTIVATOR:
This is the most widely known of the slime activators and contains borax or sodium tetra borate and has the most controversy surrounding it. To make this slime activator you will be mixing a small quantity of powder with warm water to make a solution which you will then add to your slime recipe. Click on the box below to see the recipe and a VIDEO!
SALINE SOLUTION SLIME ACTIVATOR:
This is our number one favorite on the slime activator list because it makes an awesome stretchy slime. The most important thing to look for when picking out your saline solution is that it contains sodium borate and boric acid (borates). This is also commonly used as a contact solution.
This slime activator does not need to be made into a solution first but does require the addition of baking soda for thickening. Note: you can not make your own saline solution for slime recipes with salt and water.
Click on the black box below for VIDEO and recipe!
Saline solution is also the main slime activator for everybody’s favorite, FLUFFY SLIME!
LIQUID STARCH SLIME ACTIVATOR
Liquid starch was one of the first slime activators that we tried out and also makes an awesome and quick slime. This slime activator contains sodium borate common to laundry cleaning agents. This type of slime gets better over time. Often, we will let it sit about 5 minutes in a clean dry container before we knew d it. It can appear stringy at first.
You can not make your own homemade liquid starch or use spray starch. Corn starch is not the same thing. You will find some slime recipes use a laundry detergent like Tide. I tried this type of slime recipe and found it irritating to the skin, so we did not make anymore.
Click on the back box below for VIDEO and recipe!
EYE DROPS OR EYE WASH SLIME ACTIVATOR
Last on our slime activator list is eye drops or eye wash. The main ingredient you will find in this slime activator is boric acid. Boric acid is generally not found in a cleaning supply type of product and is more specific to drops you put in your eyes as opposed to rinsing lenses.
Because eye drops do not contain sodium borate, you may need to add up to double the amount as you would for our saline solution slime recipe. In fact we made a DOLLAR STORE SLIME KIT with eye drops and you can see the homemade recipe and kit here.
Click on the box below for recipe!
These are the cream of the crop activators on our slime activator list! We love to make homemade slime for the changing seasons or holidays too.
If you are looking for taste safe slime recipes using marshmallows, gelatin, fiber, and more, click here!
There are tons of fun ways to dress up homemade slime with color, glitter, and fun theme accessories. You can even make slime to give to friends, have slime parties, or put together a homemade slime kit for a great gift. Click on the pictures below to see some more slimy ideas!
THE BEST SLIME ACTIVATOR LIST TO GET YOU STARTED!
Make sure to grab your free printable slime cheat sheet below and find a printable shopping list here.