The vial of picric acid (75 ml) at 2.5%
Dilute full bottle with 1.5 litres of water to use.
Picric acid is used to tint feathers and hair yellow.
Warning: the feathers and hairs to be tinted with picric acid MUST BE DEGREASED beforehand, otherwise the dye will not stick!!
Usage: We use plastic bowls for dilution and use plastic tools to agitate the picric acid. We leave the materials in until they have visibly changed. Some materials like thick wings, grouse for example may take a couple of days for full penetration of the picric acid whereas pheasant tails can dye in 15 minutes to 1 hour. We use latex gloves as picric, although not dangerous does make your hand look like you have smoked 60 cigarettes per day for years we have found from accidental spillage when we first started working with the laboratory to manufacture the product. For safety with ALL dying, from picric dying to dying we use safety glasses and latex gloves.
Once the materials have achieved the olive color that you require simply wash off excess picric under running water. We then dry the feathers and furs with a drying cabinet (a hairdryer is an alternative!)
Use protective gloves & protect your eyes