LiquiTek is an advanced, gypsum based, self-smoothing or self-leveling underlayment used to resurface dry, interior, distressed substrates when shot-blasting or diamond grinding is not possible. It can be applied over gypsum underlayment, lightweight concrete, mud beds, structurally sound wood, asphalt, certain well bonded floor coverings, cutback and other non-water soluble adhesives with minimal surface preparation. LiquiTek's unique fiber formulation combines a super smooth surface with extremely fast hydration, allowing non-moisture sensitive installations to begin as soon as 4 hours, resilient and wood flooring in as little as 16 hours. LiquiTek is 3500 psi in only 4 hours & 7500 psi @ 28 days.