Can you bond a mortar joint to wood?

Bonding a mortar joint to wood is generally not advisable because mortar, which is a cement-based material, is not flexible and can crack when subjected to movement or temperature changes. Additionally, wood can expand and contract, creating tension between the two materials. If you need to attach mortar to wood, consider using a bonding agent designed for such applications or apply a suitable backing material that can accommodate movement. Always ensure proper surface preparation for better adhesion.