Caulk won't dry in the shower -- too wet!
June 27, 2008 8:40 AM Subscribe
The caulk along the floor of our shower had started to get moldy after a couple years in a new house, so we removed it and recaulked (with a "kitchen-and-bath" adhesive caulk). Worked great along three of the four edges -- but the fourth edge, along the metal frame under the shower door where the 1" metal frame meets the lip of the shower floor -- wouldn't seal (wouldn't even cure -- was still mushy) after 72 hours. Pulled it up, and discovered that although the area had been dry to the touch, enough water had still been under/inside the frame to soak a paper towel slid through the joint between frame and the floor.
posted by SeanCier to home & garden (7 answers total) 2 users marked this as a favorite
There are tiny holes along the frame at this location, a few millimeters from the floor, presumably meant to prevent too much water buildup -- but we're guessing they also let some water in. There's also apparently a seam along the bottom of the frame which allows water inside the frame to seep into the join, and vice-versa. We soaked up all the water we could by leaving one paper towel after another in the join over the course of a week or so and a dozen paper towels, until they finally came out dry. Caulked again, and it seemed to cure a bit better (though the translucent caulk never turned entirely opaque -- just white in spots -- even after 48 hours), but the seal still didn't last more than a day's use. We can do the whole process again, but it's probably going to have the same problem. Tried a blow drier to dry out the area, but we don't have terribly high confidence of the effectiveness of that. Short of pulling the whole shower frame out -- which is likely installed with construction adhesive along with everything else -- any ideas as to how to get the area dry or how to get the caulk to cure?