How to create a concave mortar joint?
Repair tool

How to create a concave mortar joint?

Step 1 - Choose a Jointer

Choose a concave jointer.

How to create a concave mortar joint?Use the end of the jointer that you have identified as the correct radius for the mortar gap.
How to create a concave mortar joint?

Step 2 - Hold the middle part

Hold the middle part of the jointer between your thumb and forefinger.

How to create a concave mortar joint?

Step 3 - Align the Jointer

Align the jointer so that it is ready to compact the mortar between the bricks.

How to create a concave mortar joint?

Step 4 - Docking

Perform smooth butt movements, working in the same direction.

Instrumental vertical seams followed by horizontal seams.

How to create a concave mortar joint?

Step 5 - Swipe off the excess

Gently shake off excess mortar from the brickwork, being careful not to smear it on the brick. Leave the solution to set.

How to create a concave mortar joint?The finished concave mortar joints will look like this.

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