Hi Danny ! Yes you can use that , most of us will use grout ( the kind for sealing in tiles on the floor and what not), start with a thin mix, and progressively make it thicker. When you have it completely covered ( usually around 7 coats,the last you basically have to plop on with a spatula or your hands ... fun fun !) allow to dry completely, then use polyurethane ( i used mix wax brand, the not fast drying) sprayed or painted on 5 layers thick. Once this is sealed in with the last coat of urethane, you are good to go to use this in the warm or cool side.
Hope this helps out !
Janie.