Marshalltown Brick Jointers are recommended for exterior applications to help compact the mortar, ensuring that moisture is unable to penetrate joints for durable construction. Marshalltown Brick Jointers are made from high carbon steel. Tooled joints are recommended for exterior applications because the jointer compacts the mortar to keep moisture from penetrating the joint.
Concave joint helps conceal small irregularities in laying and emphasizes the pattern
Creates concave mortar joints
Brick jointers have a convex face for striking concave joints