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The slow match is a method of lighting safety fuses to increase the delay.
It is insensitive to small arms fire and will not burn when damp.
The slow match has a wick core impregnated with saltpeter and a casing of net weave.
It is in 1.0 cm (0.4 in) in diameter and burns at a rate of 1.0 cm (0.4 in) per minute.