ProCRYL MMA Primer

ProCryl MMA Primer is a low-viscosity, 100% reactive methyl methacrylate (MMA) resin designed as the foundational primer for all ProREZ MMA flooring systems. Engineered for fast cure and superior substrate penetration, it develops a strong, resin-rich bond layer with excellent wetting properties for concrete and other properly prepared surfaces. It cures to full strength in under one hour—even in sub-freezing temperatures when activated with ProCryl MMA Initiator or ProCryl LTC catalyst. VOC-compliant and LEED-contributing, this primer is ideal for time-sensitive installations requiring rapid recoat cycles and minimal downtime. For highly absorbent substrates or when the initial coat is insufficient, a second primer coat is recommended, ideally with a light quartz broadcast (30–40 mesh) to improve mechanical interlock. ProCryl MMA Primer must not be used as a binder for mortars or thick slurries and should only be applied after proper surface preparation per ICRI CSP 4–5 guidelines.