Fill Voids and Wet Sand

oh yes at this point you probably notice not all voids were filled but don't worry don't freak out there's a way to fix this pick up a bag of Portland cement from the hardware store it's like five or ten bucks mix it up into the consistency of pudding and start applying like you would wood grain filler a slim thin amount on top pushing it into all the little holes all the little voids do that a few layers I found that just doing the entire slab just helps you speed up the process once it's dry then scrape it off then apply another amount and spray it off then take like a six inch finer finishing drywall knife and scrape all the dry stuff off the top this will really help ensure that you don't pull any of the stuff out of its pores you know first I'm not a fan of wet polishing countertops simply because I feel like it opens up far more pores and creates these voids you got to go back and patch instead the simple solution that for me was to get a sanding block with some wet sanding sandpaper 1500 grit and then a spray bottle and do my own manual version of the wet sanding on the countertop keep in mind it's now gonna create it to be that glass slippery smooth granite feel but this is concrete it's supposed to have some of the rough textures and the voids and with the sealer it comes out really well