NA 420 LP Leveler is a low-preparation, self-leveling, calcium-aluminate- based underlayment and repair mix for interior concrete and engineer-approved floors. Its unique formulation allows for direct application on substrates that are clean, securely bonded and properly primed.
NA 420 has high strength and is abrasion-resistant, and is able to accept tile and stone 16 hours after installation and moisture-sensitive floor coverings after 36 hours. NA 420 has a compressive strength of greater than 3,500 psi (24,1 MPa) after 28 days. NA 420 is quite fluid and, once mixed, can be easily installed from featheredge to 1″ (2,5 cm) in a single lift.
