Seattle Concrete Sealants and Joint Filling Services
Many property owners and managers have wisely shifted more budget dollars to preventative maintenance to protect the value of their investments. This has made the various concrete sealants and joint fillers an attractive service to fill cracks and exposed joints and to provide a moisture barrier to prevent penetration of water. These sealants are also aesthetically pleasing to repair old expansion joint material that has weathered and decayed. For very large cracks, we will use backer rod to minimize to amount of material used and, thus, the cost of the project.
Concrete sealants and joint filling FAQs
What is the difference between a “sealant” and a “sealer”?
This difference is very commonly misunderstood. Sealants are meant for cracks and to penetrate downward. Sealers are meant to cover an entire surface area. An analogy might be helpful: sealants are like caulk; sealers are like paint or stain. For more information about sealers and coatings, visit our “Coatings” page.
What products do you use to fill concrete cracks and joints?
The most common product we use to fill concrete cracks is Sikaflex self-leveling sealant. It is a cold-apply polyurethane product. A demonstration of this product can be seen on the above video on this page.
What can be done about deep cracks?
To conserve materials and time (and thus cost), we first install so-called “backer rod” into vary wide or deep cracks before application for the sealant. An appropriately sized backer rod material is chosen to correspond with the width of the crack at the surface.