How To Stucco Concrete Block Walls
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.
How to stucco concrete block walls. With the coats you get a durable and lasting finish which is also an attractive and cost effective solution. 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. Stucco a masonry or concrete wall.
Allow the scratch coat to harden slightly. This first coat is known as the scratch coat this coat helps the final coat bond properly to the wall. The magic trick most don t know about is a bonding layer of cement paint. Make your mix a little rich.
Otherwise try picking up the stucco mix with a flat tool like a hawk and then transferring it to the wall with a trowel. After the bonding agent has been allowed to dry the stucco can be applied directly to the wall. Stucco is basically a custom mixed or a factory prepared cement plaster. A rich mix is simply adding a little more portland cement in the recipe.
Use the flat finishing trowel to spread the stucco evenly across the surface. I wouldn t go as far as a 2 to 1 ratio just a little more to make it adhere better. Apply the first coat of stucco to the concrete surface. While the stucco is drying mist the surface periodically to keep it moist during the hardening period.
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. Cement paint was used by masons of old to help new stucco material bond to old stucco concrete or concrete block. Typically i like to apply 2 coats of stucco on the walls i am covering. First coat is my filler or skim coat and the second coat is my finished coat.
The first coat application is important to be done carefully as it forms the base of this finish. Add the stucco to the top of the wall then spread it from left to right repeating this as needed to finish the layer. Mix it to the consistency of regular paint.