PRIMING COMPOSITION #4
SOURCE: PML; post by J. Humby
COMMENTS: This prime is safe to use with chlorate stars and gives a much better color than a black powder prime. The difference is most noticeable on red stars which tend to a dark salmon color when primed with black powder.
Dissolve the potassium nitrate in hot water and mix with the charcoal.
PREPARATION (parts by weight):
| CHEMICAL | PERCENT/PARTS | AMOUNT |
| Potassium chlorate | 0.520 | |
| Potassium nitrate | 0.080 | |
| Charcoal | 0.300 | |
| Lampblack | 0.100 | |
| Binder | +5% | +5% |
Total | ||
