Doing drywall. Was planning to set or first-coat vinyl corner bead with Durabond for strength like I’ve done before without issues. This time I’m doing weird attic off-angle corners so looked into trim-tex magic corner and no-coat ultraflex and I see they both say not to use setting compound. Looked into it more and found a Myron Ferguson article here that says to use bonding additive to make the compound stick to the vinyl.
Does all this apply to Durabond or is it a special case? I though the whole point of this stuff was that it was rock solid and adhered well.