11/14/2007

Recipe For Slime

We've used this recipe several times to make slime and it's GREAT! If you haven't made some yet, try it today. :-)

Need:
Borax (found in the laundry aisle)
White glue
Food coloring
Ziploc bags

1. Take a cup of water and add to it 1 Tbs. of borax. Stir until completely dissolved.
2. Make a 50% water 50% white glue solution. Take 1/4 cup of each and mix thoroughly.
3. In a ziploc bag, add equal parts of the borax solution to equal parts of the glue solution. 1/2 cup of each will make a cup of slime.
4. Add a couple drops of food coloring.
5. Seal bag and knead the mixture.
6. Dig in and have fun. Remember to wash your hands after playing.
7. Keep your slime in the sealed bag in the refrigerator when not playing with it to keep it longer. Unfortunately it may eventually dry out or grow mold. Just throw it out and start again!

Explanation:
The borax is acting as the crosslinking agent or "connector" for the glue (polyvinyl acetate) molecules. Once the glue molecules join together to form even larger molecules called polymers, you get a thickened gel very similar to slime. If you've tried this recipe (formula) before using blue starch (instead of the borax) with mixed results, you won't be disappointed with this one. Works everytime! If you have access to a chemical supply house, try a 4% solution of polyvinyl alcohol instead of the glue for a less rubbery polymer and one that is transparent showing off the color better.

Part of Works For Me Wednesday

5 comments:

Mommy Cracked said...

I can't wait until my little guy is old enough to help make this!

I Ate The Sandbox said...

Howdy! My kids would LOVE to make slime. But have mercy on my poor ignorant self...where would I find Borax? I am thinking the laundry aisle? What exactly is Borax, anyway?:D

Joanne said...

Sorry about that. I just edited my post to include where you would find it. Yes, it would be in the laundry aisle. :-)

Summer said...

Oh how fun! Thanks fo sharing the recipe!

m~ said...

We've made it before with the blue starch, Ill have to try this formula!