Considering the information covered about bath salts and oils combining and possibly making a glue. http://www.candletech.com/forums/showthread.php?t=18995&highlight=salt+glue I was wondering if this is strickly a problem with using salt. If you sub. pumice or sugar in a recipe with oils and the ingredients needed for making a scrub would the same thing possibly happen or is this strickly a problem with salts, oils and minerals in the water?