In many flooring installations, especially those involving adhesive-down luxury vinyl, the subfloor condition is critical. A primer creates a consistent surface texture that improves the performance of the leveling compound or adhesive. It effectively seals dust and porous materials, which prevents the bonding agent from drying too quickly or unevenly. In cases of concrete subfloors, certain primers can also provide a light moisture barrier, ensuring the longevity of the floor system and preventing adhesive failure caused by substrate impurities.
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What is the role of a primer on subfloors?
Primers are used on subfloors to improve adhesion for glue-down installations and to stabilize porous surfaces. By sealing the subfloor, the primer ensures an even bond for adhesives, prevents the subfloor from wicking moisture from the adhesive, and promotes a level surface.