The high bond strength of properly mixed and applied Type VIII epoxy mortar makes it a good option for use in thin applications where inclusion of dowels is not practical and excavation behind partially exposed steel would unnecessarily necessitate removal of sound material.

Do not use Type VIII epoxy mortar for structural

repairs

or in other areas where significant movement from loading or temperature variations are anticipated. Stress caused by differential movement at the bond line can develop because the coefficient of thermal expansion of Type VIII epoxy mortar varies significantly from the concrete substrate. This

problem can occur

even in thin applications if the damage covers a large area.