How to Make a Firework Fuse for Smoke Bombs

Last Updated: October 21, 2021

There are two simple ways. One using rubbing alcohol, and another with potassium nitrate (sold at pharmacies and grocery stores as 'saltpeter') Both ways are effective.

Steps

1
For the rubbing alcohol, simply take a shoelace, and soak about 6 inches (15.2 cm) in the alcohol, for several seconds, and then use sooner than later, as the alcohol will evaporate. Simply use as a fuse and light. This will make a flame towards the explosive on the string, opposed to a series of sparks, as the average fuse.
2
For the potassium nitrate, mix the potassium with sugar in a container, at the ratio of 1:1.

Advertisement
3
Then take a 6 inch (15.2 cm) piece of shoelace, and soak it in water for several seconds, and then place in the container of potassium and sugar, so that the string is fully coated.
4
Take the string and then let it sit flat out, so it can dry for 24 hours.
5
And there you have your homemade fuse for smoke bombs, along with any other bomb that needs a fuse.

Community Q&A

Question

Where do you find the potassium?

Community Answer

Stump remover works best. Go to your local hardware store and look for some.
Question

Where can I get potassium?

Community Answer

Stump remover works best. Look for it at your local hardware store.