For weathering the helmet, I have heard of several techniques; liquid masking being the one that comes up the most. I was wondering if rubber cement would be a good substitute; has anyone tried this?
I've used rubber cement before but didn't like the results. The problem was that it was too sticky to get it to conform to where I wanted it to go so easily. Liquid mask works much better. It dries within a few minutes and can be brushed on to fit exactly where you want it to go.