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940 Iron & Manganese Stain Remover (For Ferrous Stains)


940 Iron & Manganese Stain Remover (For Ferrous Stains) DOCUMENTS & DOWNLOADS


940 is a specially formulated product for the effective removal of iron, manganese, acid burn, straw stains and other metallic stain/discoloration from brick, stone and concrete surfaces. Solves the problem effectively.

NOTE: Metallic staining control is dependent on a variety of surface and job site controls. Moisture control is the most prevalent factor to be addressed. Corrective measures must be taken to prevent additional moisture entrance. The wall must then be allowed to thoroughly dry before attempts at stain removal with DIEDRICH 940 IRON AND MANGANESE STAIN REMOVER commence.


SIZES: 1, 5 & 55 Gallons

Iron & Manganese Stain Remover Application

  • Apply concentrated product directly to masonry surface with a dense, soft masonry brush or low pressure (40-50 psi) airless sprayer
  • Allow 3 to 5 minute dwell time and reapply.
  • Rinse thoroughly with fresh water.
  • Suggested Dilution Rates
    for 940 Iron & Manganese Stain Remover
  • Product should not be diluted.
  • For detailed instructions, download the Technical Data Sheet for this product
  • Typical Coverage Rates: 150 sq. ft. per gal.

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