I finally caught on that my stucco patch was cracking because I was wetting it too much

Been doing stucco repairs on my Tucson house for two years and every patch would crack within a month. Last week I watched a guy from the next town over do a patch and he barely misted it. Anyone else had a simple fix like this take way too long to figure out?

3 comments

3 Comments

thea6022h ago

Honestly isnt it wild how one tiny change can make all the difference? Ive been patching my own drywall for years and finally figured out last month that I was using too much water in my joint compound. It kept bubbling up and cracking and I couldnt figure out why. Ngl it drove me crazy until I saw some YouTube video where a guy said less is more and it clicked. Tbh stucco and mud are so picky about moisture levels and nobody really explains that part.

the_sean2h ago

Started driving me nuts too until I realized the same thing. You gotta mix that mud like you're making a thick milkshake, not soup. Less water means less shrinking and cracking when it dries. I also started doing THIN coats instead of trying to fill everything at once. Three thin coats with a good sand between each one will save you so much time fixing bubbles later. Once I got that right my patches started looking invisible.

wren23013m ago

Started paying attention to the temperature of the room too. Nobody talks about that but if the mud is cold when you mix it and the room is warm or vice versa, you get this weird skinning effect on top while the bottom stays wet. I had patches that looked perfect for like two hours then suddenly bubbled up out of nowhere. Turns out the temp difference was causing the moisture to push up through the drying layer. Now I let my mud sit out for an hour before mixing so it matches the room temp. That plus the thick milkshake consistency and thin coats pretty much solved everything for me.