I'm having trouble finding an answer to this because I keep finding topics on "fix cracked drywall with joint compound", but I want to fix cracked joint compound. Thanks for any help.
I took out my bath tub and replaced with a tile shower about 6 months ago. I put up hardibacker and it didn't quite line-up with the rest of the existing drywall. It wasn't too bad, I thought, only off by about 1/8". I applied tape and drywall compound to make up the difference. Pretty much as soon as it dried, it was cracked all over. The cracks look like a spider web pattern (pretty much random). I secured the heck out of the hardibacker so I don't think I have movement, I think maybe I just applied the drywall compound too thick, or otherwise incorrectly. It was pre-mixed, so it wasn't that I mixed it incorrectly.
Anyway, I'm wondering if I can apply another thin layer over the top, or if it will just continue to crack? Do I need to apply a mesh, or something? Or do I need to rip out the drywall and start over. No way I'm ripping out the hardibacker, since that would mean redoing the tile... I'd do wood paneling, or tile the whole bathroom before I do that.
O-ya, and if anyone can point me to a web-site (with pictures would be great) with info on this topic, that would be awsome!