so i am confused on the sealer for the grout everyone says mod podge and i looked on google and there were SOO MANY diferent kinds and i dont know which one i need to get...how much... how to apply it i built 2 cages 4x2x2 each. the floor the back wall and a couple structures are grouted i just need to seal it. can anyone help??? maybe a link to the one i need or a picture of the one i need....thank you