I dipped the hands in latex the dried under the hand dryer to speed up the process. I did this 3 times. One of the hands will be curled into a fist so I'm not too fussed about the fingers, but for the other hand the finger sizes were a bit squiffy, so I added tips to the fingers using plasticine, then dipped them again, just the fingers this time, two more times (no photo yet though).
The next step is to add a layer of paint in a flesh tone then dip the hands again in latex, adding a thin layer to seal the paint in. I have chosen to colour the hands this way as adding dye to the latex can be tricky when trying to achieve a certain colour, and painting over the latex might mean the paint will crack when the latex bends and stretches. As the latex is shiny (and obvously human hands aren't) i'm going to try dusting them with face powder to take the shine off it. Using face powder rather than talc will mean I should be able to keep the flesh tone.