Kids love tomake homemade flubber slime! Our flubber slime is similar to our liquid starch slime recipebut it’s thicker, stretchier, and tougher. We love both slime and flubber for a fun science lesson or experiment. Make homemade flubber without borax powder in minutes! There are tons of tons of cool ways to play withscience and STEM.
PinMake Flubber Without Borax Powder
What is flubber? Flubber is a super thick, super stretchy, super strong slime!
NOTE: This flubber recipe does not contain Borax powder. However, liquid starch does contain sodium borate which is part of the boron family. Please try one of our alternative recipes if you are allergic/sensitive to these ingredients. We have never experienced a skin reaction.
PinBasic Slime Recipes
Our easy, “how to make” slime recipes show you how to master slime in 5 minutes or less! We have spent years tinkering with our favorite basic slime recipes to make sure you can make the BEST slime every time!
We believe slime shouldn’t be disappointing or frustrating! That’s why we want to take the guesswork out of making slime!
- Discover the best slime ingredients and get the right slime supplies the first time!
- Make easy slime recipes that really work!
- Achieve awesome slimy consistency the kids’ love!
Which Slime Recipe To Use?
We have several basic slime recipes that can all be used for this flubber slime recipe. You decide which one works best for you depending on what slime activator you want to use. This allows for some flexibility depending on where you live in the world! Not everyone has access to the same ingredients!
Each of the basic slime recipes below have the full step by step photos, directions, and even videos to help you along the way!
- Saline Solution Slime Recipe
- Borax Slime Recipe
- Liquid Starch Slime Recipe
- Fluffy Slime Recipe
In the recipe below, we use our liquid starch slime recipe but with different quantities to create the thicker flubber slime.
PinHelpful Slime Making Resources To Get Your Started
These are the best resources to look through before, during, and after making your awesome flubber slime! We talk more about slime science below too.
- Slime Activator List
- What is slime?
- What You Need To Make Slime
- Amazing Benefits Of Playing With Slime
- Best Slime Ideas
- How To Make Slime Less Sticky
- How To Get Slime Out Of Clothes And Hair
A Bit Of Slime Science
We always like to include a bit of homemade slime science around here! Slime is an excellent chemistry demonstration and kids love it too! Mixtures, substances, polymers, cross-linking, states of matter, elasticity, and viscosity are just a few of the science concepts that can be explored with homemade slime!
What’s slime science all about? The borate ions in the slime activators(sodium borate, borax powder, or boric acid) mix with the PVA (polyvinyl acetate) glue and forms this cool stretchy substance. This is called cross-linking!
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. Until…
You add the borate ions to the mixture, and it then 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 thicker and rubbery like slime! Slime is a polymer.
Picture the difference between wet spaghetti and leftover spaghetti the next day. As the slime forms, the tangled molecule strands are much like the clump of spaghetti!
Is slime a liquid or solid?
We call it a non-Newtonian fluid because it’s a little bit of both! Experiment with making the slime more or less viscous with varying amounts of foam beads. Can you change the density?
Did you know that slime aligns with the Next Generation Science Standards (NGSS)?
It does and you can use slime making to explore states of matter and its interactions. Find out more below…
- NGSS Kindergarten
- NGSS First Grade
- NGSS Second Grade
Flubber Recipe
Try our traditionalliquid starch slime recipe and compare the results. It uses similar ingredients in different amounts. Make sure to check out sand slime too!
SUPPLIES:
- 1 cup PVA Washable Glue White
- 1/2 Cup Water {room temperature}
- 1/2 Cup Liquid Starch
- Glitter or food coloring optional
PinHow To Make Flubber:
STEP 1: Mix glue and water together in a container. Stir until it is well combined and a smooth consistency. Now is the perfect time to mix in color or glitter.
PinSTEP 2: Next, add the liquid starch to the glue/water mixture. Start mixing with a spoon.
PinSTEP 3: Switch to usingyour hands to combine the ingredients well. Keep mixing the flubber for a few minutes and kneading it well.
You can play with your flubber immediately or let it set up for about 15 mins or so.
PinHow To Store Flubber
Store your flubber in a container with a lid, and it should keep for several weeks unless you have many hands playing with it. When it’s done, throw it away and make a new one with one of our many slime recipe ideas perfect for seasons and holiday!
This flubber recipe makes a huge pile! Squeeze it, squish it, pull it, test it’s super strength.
PinFun Things To Do With Flubber
Homemade flubber, as well as other types of slime are great for building hand strength. You could add in some LEGO piecesfor a treasure hunt slime or mini scrabble tilesfor a letter hunt slime. They both make for interesting fine motor and literacy activities!
Or how about using our flubber or slime recipe to explore emotions!You can also make slime to go along with a favorite book!
Did you know that you can even blow flubber bubbles with this recipe?
PinMore Fun Slime Recipes To Try
If your kids love playing with slime, why not try more favorite slime ideas…
- Fluffy Slime
- Cloud Slime
- Clear Slime
- Glitter Slime
- Galaxy Slime
- Butter Slime
- 2 Ingredient Slime
Grab the Ultimate Slime Recipe Bundle
All the best homemade slime recipes in one place with plenty of fantastic extras!
- The Ultimate Slime Guidecontains all the specialty recipes you or your kids want to make! You’ll find all the best tips, tricks, hints, and slime-y info in almost 100 pages!
- The Ultimate Slime Holiday Guidecovers all the best holidays and seasons with special themes and slime-y projects!
- The Ultimate Borax-FREE and Taste-Safe Slime Guideshows you how to make all the best borax-free, taste-safe, and non-toxic slimes kids love, such as marshmallow slime. These recipes do not use chemical activators such as saline solution, liquid starch, or borax powder, making them truly borax-free.
- The Ultimate Slime Coloring Bookis an easy-to-print coloring book kids will love! Color and design your favorite slimes!
- The Slime Starter Guideis a fact-filled information guide with everything you need to know to make the best slime ever!
