Fans of EasySand20 and other drywall mud...
Brickeyee (and maybe others) have advocated using drywall joint compound in "off-label" ways, i.e. as plaster for filling gaps and holes of various spans and depths, when the packaging suggests it is only for very thin "schmears", as in taping drywall joints.
Someone, local, live, and on-site, recently recommended the same "mud" for repairing some ancient plaster/drywall around a window frame, ruined by water-intrusion. We're talking a trench 1" deep and 1.5" wide, bounded by sound plaster above, concrete behind, and new wood window frame below.
Anyway, was just wondering what the dimensional limitations are of drywall "mud", when/if you reinforce with MESH, shrinkage/cracking issues when "used thick", etc.
Thanks in advance.