Grab your Saran Wrap and rip off a decent size piece. Large enough to completely wrap the back shell and lay it flat on your work surface.

Open the bottle of Salon Care 40 Volume Creme and pour some out onto the shell. Do your best to cover the entire surface evenly. This is easier said than done due to the shells odd shape. Just do the best you can.

Smooth out the extra creme that poured off your controller, onto the Saran Wrap, in a big enough surface to cover the controller.

Quickly flip the shell over and cover the entire shell with the Saran Wrap. Try not to leave open airways as you don't want the solution to dry. If you need an extra piece of Saran Wrap to completely cover the shell now is the time. When shell is completely wrapped flip it back over and place it into the container that will be holding the shell.

I recommend an aluminum pan or glass dish of some kind as they will help reflect the UV light projected from your black light bulb.

If you are cleaning a white controller the process is the same for the front shell.