Primers serve as a bonding agent that bridges the gap between the concrete surface and the subsequent floor assembly. By sealing the concrete, the primer prevents the rapid suction of moisture from leveling compounds, which ensures that these materials cure correctly without cracking. Furthermore, in commercial projects, a primer acts as a dust-proofer, ensuring that loose surface particles do not interfere with the bond strength of high-performance adhesives, ultimately ensuring a stable and long-lasting flooring installation.
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What is the purpose of a primer in concrete subfloor preparation?
The primary purpose of a primer in concrete subfloor preparation is to promote strong adhesion between the substrate and the floor covering or adhesive. It also seals the concrete's porous surface, preventing the premature drying of floor leveling compounds or thin-set mortar.