How To Stucco Concrete Block Walls

The magic trick most don t know about is a bonding layer of cement paint.

How to stucco concrete block walls.

After the bonding agent has been allowed to dry the stucco can be applied directly to the wall. The first coat application is important to be done carefully as it forms the base of this finish. To apply stucco to your existing brick block or concrete wall first brush a concrete bonding agent onto the wall then allow it to dry completely. You make cement paint by just mixing portland cement powder with clean cold water.

Allow the scratch coat to harden slightly. Stucco is basically a custom mixed or a factory prepared cement plaster. Apply the first coat of stucco to the concrete surface. I wouldn t go as far as a 2 to 1 ratio just a little more to make it adhere better.

While the stucco is drying mist the surface periodically to keep it moist during the hardening period. First coat is my filler or skim coat and the second coat is my finished coat. Use the flat finishing trowel to spread the stucco evenly across the surface. Work your stucco over the big cracks and gaps first filling them in before you start applying the stucco to the whole wall.

The basic stucco recipe is 3 parts sand to 1 part portland cement but for block walls a little bit richer mix will help the mud to stick better. To stucco a cinder block wall apply a concrete bonding agent apply scratch layer of stucco and then add a finishing coat of stucco allowing 36 to 48 hours for curing between each layer. Cement paint was used by masons of old to help new stucco material bond to old stucco concrete or concrete block. With the coats you get a durable and lasting finish which is also an attractive and cost effective solution.

Stucco a masonry or concrete wall. This first coat is known as the scratch coat this coat helps the final coat bond properly to the wall. If you have a concrete sprayer use it to cover large areas quickly. The scratch coat should be between 1 4 and 1 2 inch thick.

Otherwise try picking up the stucco mix with a flat tool like a hawk and then transferring it to the wall with a trowel. Make your mix a little rich. Mix it to the consistency of regular paint.