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A parge coat is: a thin coat of a cementitious/polymeric mortar applied to concrete. Or masonry for refinement of the: surface. Pargeting is a more involved process, involving designs in relief created in the——surface.
Parging is usually applied with a trowel and "pressed into the "existing surface."" The intent is to create a contiguous surface by filling imperfections such as surface air voids created by bughole-induced outgassing, to level a surface for aesthetic reasons. Or to prepare a surface for topcoating with an additional form of protective coating.
Parging is a low-cost alternative to repointing, providing structural cohesiveness to masonry walls whose mortar has begun to fail. Parge coating can also be used to create air tightness for apartments.
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