Hi

I wish to deposit metal coatings on SU-8 structures to serve as tools
for hot-embossing.
I know nickel is commonly electroplated for this purpose but the
facility I have access to currently only has an evaporator with silver
and aluminium sources (we have no electroplating facility).
Does anyone know if evaporated layers of silver or aluminium stand any
chance of working? I only need to replicate a few structures but I need
to make them quickly so I don't have too much time to get a nickel
source or set-up an electroplating facility.
N.B. I will be embossing into COC and PMMA.
Many thanks

Gareth