>The header says it all- any help would be appreciated.
Fantastic stuff for masking soft-edge camouflages in 1/72! Possibly too in 1/48, little experience.
Knead it until is slightly warm, it then is easier to process and slightly more tacky. Roll thin strings from it (use a flat object like a CD box), lay it down on the model in the desired camo pattern, fill in the areas to be masked with Maskol or another latex masking agent, let it dry, and spray away! I always remove it immediately, because I am curious. It also allows minor repairs, because the paint is still soft.
See some examples on my website.
Rob