chrome powder Optimus Pro Mirror Chrome Powder Transform your nails with Chrome Powder How to do chrome nails step by step? 1. Apply a base coat and cure by UV/LED lamp for 60-120 second, depend on the power of light. 2. Apply a color gel nail polish cure by UV/LED lamp for 60-120 second, depend on the power of light. 3. Apply no wipe top coat, cure by UV/LED lamp for 10-30 second, depend on the power of light. 4. Pick the chrome powder apply onto the nail by finger or eyeshadow stick. 5. Clean the nail with brush. 6. Apply no wipe top coat and cure for 60-120 second, depend on the power of light.