How to Sponge on Bricks?

To effectively sponge bricks after bricklaying, focus on dry sponging to remove mortar residue. Avoid wet sponging which can damage the mortar.

The Importance of Dry Sponging

Using a wet sponge on freshly laid bricks can soften the mortar, making it more difficult to remove, and potentially damage the joint. Instead, dry sponging allows for a much cleaner and effective outcome.

Steps for Dry Sponging Bricks

Here's a guide to properly dry sponging brickwork:

1. Wait for Mortar to Partially Dry: Allow the mortar to partially dry, but not fully hardened, so you can remove excess mortar. This is key to preventing smearing and ensuring successful cleaning.
2. Use a Dry Sponge: Use a clean, dry sponge. A grouting sponge works well for this task because of its firm texture.
3. Gently Rub the Brick Surface: Using the sponge, gently rub the affected areas. Use a circular motion and be careful not to dislodge any mortar from the joints.
4. Change Sponge Sides: As you wipe away the mortar residue, be sure to use a clean part of the sponge. You should either flip the sponge or replace it with another one frequently for best results.
5. Continue Until Clean: Continue this process until the majority of the excess mortar has been removed, leaving the brick surface relatively clean.
6. Inspection: Inspect for any remaining mortar and repeat the process as necessary.

Why Avoid Wet Sponging?

As noted in the reference:

Never wet sponge the brick face as it will soften the mortar again, making it more difficult to remove.

• Wet sponging causes the mortar to smear.
• It makes the mortar harder to clean up and can cause long-term staining or discoloration.
• It can compromise the integrity of the newly laid mortar joint.

Benefits of Dry Sponging

• Prevents damage to the new mortar.
• Removes mortar stains effectively.
• Prepares the wall for further cleaning.

By following these steps and using dry sponging techniques, you will achieve a much better finish for your brickwork.