used citrus degreaser to finish cleanning. worked pretty well with scrubbing sponge. put 845 on 2 out of 3 walls, gona see effects and how long 845 lasts. gona go take shower and see beading lol
I'd seal the walls after you are done with something durable, like 845 or DG 601/105 combo. Remember, you want durability, so no carnauba here...