Name: Scratch Ignition Prime
Source: Alan Yates
| percent | parts | component |
|---|---|---|
| 63.64% | 7 | Potassium Chlorate |
| 27.27% | 3 | Charcoal (airfloat) |
| 9.09% | 1 | Antimony Trisulfide |
Screen together the Potassium Chlorate and Charcoal, then place mixture in a tightly sealable jar suitable for Acetone. Add sufficient syrupy Nitrocellulose lacquer to make a paste, thinning with Acetone as required. Add Antimony Trisulfide to slurry and mix in well.
A scratch ignition prime compatible with match-box striking surface.
Antimony Trisulfide is optional, but makes it a bit more sensitive. It can be left out, perhaps giving a somewhat safer and cheaper mixture at the expense of having to strike harder or a few times to get reliable ignition.
Ensure you cap the primed surface with a safety covering to prevent accidents, say rubbing against sulfur containing blackmatch during transport. A piece of Aluminium foil works well and is easily removed just before device ignition.