I recommend 20 drops per 100ml of plastisol then add more if needed. This pigment is very expensive so use wisely. In clear plastic 20 drops will give oil effect and when you move the lure it will change colour as light penetrates through the plastic body or give high colour strength and shine by adding over 20 drops to create a more coloured chrome look. When used with a small amount of colour the chameleon effect shows even more. Try to keep the colour you add to a minimum, just one drop of colour in 100ml of plastisol might be enough depending on the strength of colour you use.
Great for open pour or injection type molds. Changes colour from gold to red to brown and colours In between. Has to be seen to be believed. Awsome colour.