Fix bricks in no time –
with brick caulk

Brick caulks are designed to create heavy-duty bonds with construction materials like brick and concrete. They’re also designed to create long-lasting seals that are waterproof and weatherproof for outdoor repairs. Whether you need to fill in cracks in your masonry or seal windows, you can’t go wrong with brick mortar caulk.

1. Gather everything you need: a utility knife, a caulking gun, and something you can use to pierce the cartridge seal. Put on some gloves.
2. Prepare the joints. The depth of the brick mortar caulk should be half the width of the joint, if the joint is wider than 10 millimetres. Make sure to read the manufacturer’s instructions before you apply the brick caulk to ensure you can use it on the joints that need fixing and whether you need backer rods.
3. Prepare the surfaces. Clean and dry the surfaces thoroughly and make sure they are intact. If the repair job involves resealing joints that have been sealed before, remove all of the old brick caulk before you apply the fresh sealant. You can do this with the utility knife – wipe down the surface afterwards. Some brick caulks will require you to prime the surface, so read the instructions before proceeding.
4. Apply the brick caulk. Put your chosen brick mortar caulk into the caulk gun. Cut the nozzle at a 45-degree angle to the required bead size and then pierce the seal. You can now apply the brick caulk. Apply steady pressure to the caulk gun and force the caulk into the joint from the bottom up.
5. Finish. If there’s any excess brick caulk on your tools, then you’ll need to clean them with white spirit. If you got excess caulk on to the repaired surface you can remove it when it’s dry by scraping it off with a knife. Wash your hands once you’ve finished.