Zimmerit putties

Hey all, I’ve been modeling for some 20 years and have never tried making Zimmerit. I mostly do aircraft, but my brother wanted a Tiger for his birthday, so I told him I’d make him one. Having never done Zimmerit I’m simply looking for the easiset way to do it with the tools I currently have. I have two putties, Squadron white and green. Will either of these two work? Or is there some better alternative I should look up?

i would use epoxy putty and work it before it was fully cured,i believe that if you use the white or green putty you mentioned that it will craze the plastic and possibly ruin the model as it would have to be too thick