Roughness on PDMS surface in Form3 mold (imaging)

We produced a PDMS mold using Form3 gray resin and aimed to use PDMS for cell imaging. However, the part of the PDMS to be bond to the slide with oxygen plasma turned out to be rough in every attempt although we used many different methods. PDMS did not stick to the slide. Any ideas on how we can fix the rough surface? You can see the surface image of the PDMS in the attached file.`

1 Like