Type O: Historical restoration and tuck pointing applications. High lime content mortar.
350 psi minimum compressive strength (@ 28 days)
Type N: Non-Structural applications. 750 psi minimum compressive strength. Primarily
used for veneer applications of brick and manufactured stone.
Type S: Structural Mortar applications. 1800 psi minimum compressive strength (@ 28
days) For use with masonry block, structural brick and stone.
Type M: Structural Mortar applications. 2500 psi minimum compressive strength (@ 28
days) For use on masonry block was typically used on institutional projects and