mount small pcb parts

  1. U

    Use thermal paste/grease to mount buck/boost converter and arduino nano, etc.

    All, I am having difficulty mounting some of the small pcb pieces such as buck/boost converters (see attached figure), arduino nano, etc. My question is can I use thermal paste/grease to use as glue to mount them on the casing since they are supposed to be electrically non-conductive. Any...