Silver Holographic powder pigment creates a hologram / rainbow effect.
Strongest results over black base, can be used over gray or silver bases.
First image shows pearl over black base, 2nd image is over a dark gray base, 3rd image is over a light base.

How to use:

Mixing Ratio:
Black base will produce the strongest effect. 10g-15g per sprayable gallon at 2-3 coats.
Dark gray base effect is stronger than a silver base but smoother than a black base. 10g-15g per sprayable gallon at 2-3 coats
Black/Dark Gray bases can take on the color of the pearl (silver) at higher ratios/too many coats, and lose vibrancy of the holographic effect.

Silver/Light gray base will produce a smooth silver holographic effect. 20g per sprayable gallon at 2-3 coats.
Can use up to 25g per gallon, however applying too much pearl will result in a subtler effect.
Apply black base first. 
Mix pearl into intercoat clear / clear base / or another clear carrier and apply 3 coats over the base. 
Finish with UV protected top coat clear. 

Use for bikes, cars, trucks, epoxy, hobbies and crafts.