Black Fingerprint Powder Formulas:
Ferric oxide powder
Black ferric oxide 50%
Rosin 25%
Lampblack 25%
Manganese dioxide powder
Manganese dioxide 45%
Black ferric oxide 25%
Lampblack 25%
Rosin 5%
Lampblack powder
Lampblack 60%
Rosin 25%
Fuller’s earth 15%