Welcome to the Slime Lab! Here we’ll show you how you can make your own safe, non-toxic, non-psychoreactive slime at home with some basic household items. Here’s what you will need:



1. Elmer’s Glue (20 mL) (white or clear is fine, using clear glue will result in a more transparent slime, but will lack the stretchability and viscosity of white Elmer’s Glue.)
2. Borax Detergent Booster (1/8 TSP)
3. Two (2) Three (3) Ounce Spice Shaker Bottles with Lids (Glass or Plastic)
4. One (1) Zipper Sandwich Bag
5. Food Coloring
6. Water (35 mL)
7. Black Sharpie
8. Stirring rod





1. Using one of the two 3 oz Spice Shaker Bottles, add 20 mL of water and then use a black Sharpie to mark on the water level. Once you have made this mark, add an additional 20 mL of water and then make a second line to mark the water level. If properly measured, there will be 40 mL of water in the bottle and two (2) black lines each representing 20 mL.

2. In the second 3 oz Spice Shaker Bottle add 15 mL of water and use a Sharpie to draw a line to mark the water level.

Note: Upon completion dump the water out of both 3 oz bottles. You should now have 2 empty Shaker Bottles, one with 2 lines, one with one line.




1. Add 20 mL of water to the 3 oz bottle with the two (2) pre-marked black lines.

2. Using the same bottle, add enough Elmer’s Glue (20 mL) so that the water level rises to the second marked black water line.



3. Add the desired food coloring (2 – 3 drops recommended).

4. Using Stirrer, mix the Water/Elmer’s Glue/Food Coloring until color and consistency is solid.



5. Using the second 3 oz bottle add 15 mL of water.

6. Measure and add 1/8 TSP of Borax Detergent Booster to the bottle with 15mL of water. Then add the lid and shake for fifteen (15) seconds.



7. Pour the contents of both 3 oz bottles into a Zipper Sandwich Bag and seal. (Note: Remove as much air from the baggie as possible when sealing.)

8. Once Zipper Sandwich Bag is sealed, knead the contents by squeezing and rubbing the bag gently with your hands (this motion will combine the materials in the bag making a solid and slimy mixture).

Note: Once the contents begins to come clean from the bag, open the bag and allow air to enter, then reseal the bag and continue to knead.

9. Once the contents have fused, remove the contents and enjoy your very own “ECTO-PLAZM”.



Enjoy responsibly!

Safety Precautions:
Although the materials used to create this polymer based slime are considered nonhazardous, the contents may be harmful if ingested and may leave stains on wood, carpeting or upholstery. When adding the food coloring to the mix, use caution becuase it will stain hands, clothing, and upholstery.

This slime mixture has a shelf life of approximately one (1) year, and when not using your slime, it should be stored in a sealable container or in a sealable plastic bag. 

The Science of Slime

Glue is a solution of a polymer in water. By adding sodium borate to glue we produce a new type of polymer, which we at the NYC Ghostbusters call “ECTO-PLAZM”. As you can see, this polymer based slime is relatively easy to prepare and has some very unique properties. It is a gel-like substance with properties that are intermediate between those of a liquid and a solid. Thus, the polymer gel may flow and take the shape of its container, but it can also be molded into shapes and may be elastic, similar to rubber.

This experiment was based on the teacher resources available at Flinnsci.com.

Safety Precautions

  • Borax contains sodium tetraborate, and for this reason safety glasses/goggles should be worn in order to avoid contact with eyes. If in the instance of contact with eyes, rinse with water for 15 minutes and if irritations should persist, contact a physician.
  • Do not take Borax internally and in the case of ingestion, rinse mouth with a large full glass of milk or water. Do not induce vomiting and a physician should be notified immediately.
  • Gloves should be worn during the course of this experiment. However, should one come in direct contact with the Borax, it is recommended not only to avoid eye contact, but to also wash ones hands at the end of the experiment.
  • Children should always be supervised by an adult.