Stain-Proof Acidic Cleaner - Quart

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Stain-Proof Acidic Cleaner - Quart

STAIN-PROOF® Acidic Cleaner, formerly known as EFF-ERAYZA™, is a new technology acid cleaner for removing efflorescence, rust stains, limescale, grout haze, mortar mess and fireplace soot. Acidic Cleaner is very powerful and generally more effective to use than traditional industrial acids but does not produce noxious fumes, non-corrosive to metals (except for uncoated aluminium) and temporary contact does not burn skin. Acidic Cleaner is suitable for: a wide range of non-acid sensitive stones and other hard surfaces, including granite, slate, basalt, brick, ceramic and porcelain tile, terracotta. Indoors and outdoors on floors, walls, facades, showers, masonry and brickwork. 


  • Removes efflorescence, grout haze, rust stains, mortar mess and hard water deposits.
  • For non-acid sensitive: stones, pavers, tiles, brick and masonry.
  • Safer to se than traditional acids such as muriatic and phosphoric, non-fumming.
  • Super concentrated - 1 quart makes approximately 4 gallons of powerful efflorescence remover.
  • Chemically etches acid sensitive surfaces for added traction.


Stain-Proof Acidic Cleaner Specification Sheet

Stain-Proof Acidic Cleaner Overview

Stain-Proof Product Use Chart