Honeycomb tabletops from Holmarc provide rigid and stable optical working surfaces with the convenience of tapped holes at 25mm grid for mounting components and modules. Honeycomb core made of 0.25mm thick aluminium sheet. Though compressed particle boards are used as side walls in most cases due to its vibration damping properties, Holmarc can also provide tabletops with steel and aluminium side walls. Semi-solid epoxy is used to construct the honeycomb core as well as to bind top and bottom skins to the core. This special epoxy binding absorbs low frequency vibrations to a certain extent and provide considerable damping even without the use of isolated supports.