SURFACE-GYP™ PRO

SURFACE-GYP™ PRO is a premium, high-strength, concentrated gypsum-based underlayment designed for multifamily and light-commercial construction over approved wood, concrete, and steel deck substrates. Mixed on site with approved sand and potable water, it produces a pumpable, self-leveling mixture that creates a smooth, flat base for finished flooring, with compressive strengths ranging from 3,500 to 4,500 psi (24.1 – 31.0 MPa), depending on mix proportions, sand gradation, water content, and flow characteristics.