Hi,
    I'm working with microfluidic channels in PDMS and the high pressure I'm
using causes the material to rupture. Instead of going to glass or silicon
it would be convenient to have a material similar to PDMS that cures over a
relief structure and has comparable characterisitics: highly nonreactive,
low or no optical background, transparent in the visible, capable of bonding
pieces together. Does anyone know of any such magic alternative?

Thanks,

Ziggy Majumdar