White Scum Presoak

White Scum Presoak effectively penetrates and softens white scum deposits on block, brick, and concrete surfaces. Used before applying NMD 80®, it helps remove calcite from concrete masonry units (CMU), ensuring thorough cleaning. Simply apply the presoak undiluted and let it sit for five to ten minutes, then apply NMD 80® without rinsing off the presoak, allowing additional dwell time before finishing with a pressure wash. This two-step process ensures complete removal of white scum for a cleaner, restored surface.

Product Data Sheet

Safety Data Sheet