Hi,

I have done a PDMS mold without baking. I left it one day at RT and it works
well. Pdms channel height was around 30 microns.

Check your expiration dates on both agents and be careful about mixing.

Ratios

On Apr 4, 2011 12:14pm, righeira carnegie  wrote:

> Hi, we are been trying to make PDMS mold from sylgard 184. instead of the
> curing temperature with the same mixture of ODMS and curing agent, Is it
> possible to make PDMS mold in room temperature, just skipping the heating
> process after pouring the mixture into the mold. We tried once, there is so
> much of difference when followed heating process. The structures where not
> defined properly. Is this due to effect of temperature, but the dowcorning
> people claim it should not change. they say the heating process is only for
> making the procedure faster, so if the heating procedure is not followed
> then it might take ,ore than one day to cure. But in our case we cured ot
> for three days but the structure has changed when compared. The change in
> structure is the height profile of the photonic crystal. has anyone tried
> these things.