SLOW BURNING FUSE
(approx. 7cms per minute)
Materials needed:
- Cotton string or 3 shoelaces
- Potassium Nitrate or Potassium Chlorate
- Granulated sugar
Procedure:
1) Wash the cotton string or showlaces in HOT soapy water then rinse with fresh water
2) Mix the following together in a glass bowl:
1 part potassium
nitrate or potassium chlorate
1 part granulated
sugar
2 parts hot water
3) Soak strings or shoelaces in this solution
4) Twist/braid 3 strands together and allow them to dry
5) Check the burn rate to see how long it actually
takes!!
FAST BURNING FUSE
(1.5 metre's per minute)
Materials needed:
-Soft cotton string
-fine black powder (empty a few shotgun shellsor
see black powder file)
-shallow dish or pan
Procedure:
1) moisten powder to form a paste
2) twist/braid 3 strands of cotton together
3) rub paste into string and allow to dry
4) Check the burn rate!!!