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SOS-50

Masonry Detergent

SOS-50 is a buffered detergent-based solution designed for the cleaning of new masonry structures. SOS-50 can be used on virtually any type of brick, block, stone, cast stone, and precast. No scrubbing is necessary.

Advantages

  • Not regulated by the D.O.T.
  • Low Odor
  • Similar performance to NMD 80, without HCL
  • Non-fuming
  • Improves productivity
  • No VOC’s
  • Can be used with a low-pressure rinse
SOS-50 Product Spec Sheet
SOS-50 Safety Data Sheet
Architectural Spec Sheets

Dilutions:

Standard dilution of SOS-50 is 4 parts water to 1 part SOS-50. An EC Jet is recommended to ensure both proper dilution and application of SOS-50.
Ideal size of pressure washer for exterior clean: gas powered 3 to 5 gallon or 4 to 6 gallon per minute pressure washer not to exceed 3,000 P.S.I.

Coverage Rates:

Coverage rates will vary from 100-200 sq. ft. per gallon depending on the surface porosity, texture, ambient temperature, craftsmanship, severity of mortar smears, and severity of other post construction staining.

Application Instructions:

Low-Pressure Application

1. Lightly pre-wet or flash-cool the surface (do not soak).
2. Apply SOS-50 through an EC Jet or low-pressure sprayer to the entire section to be cleaned. Start from the top and work down. Allow SOS-50 to dwell for 5-7 minutes. White foam signals product activation.
3. After the initial application of chemical, scrape the large chunks of mortar with a long-handled scraper.
4. Check mortar smears and tags to see if it crumbles easily.
5. Reapply SOS-50 without rinsing between applications to melt the remaining mortar residue and extend dwell time. Once there is no foaming, the surface is ready to be rinsed.

Rinsing:

Proper rinsing techniques determine the final look and quality of the job. Generalized rules of rinsing would include:

1. Low-pressure rinse. The EC jet can be used as long as the ball valve to NMD 80 has been turned to the off position.
2. If using a pressure washer to rinse use a 40-degree nozzle is reduce the potential for surface damage. Stay at least 8”-12” from the wall to avoid potential damage to the mortar joints.
Do not use a zero-degree nozzle.
3. Craftsmanship determines the appropriate pressure for rinsing. A thorough rinse job is recommended; however, our chemistry never requires flooding a wall. Pressures that mark or damage the surface should be avoided. When in doubt, follow the manufacturer’s recommended P.S.I. for the substrate you are working on.
4. Always use overlapping horizontal passes to achieve a uniform appearance.

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EaCo Chem, Inc. | 765 Commerce Avenue | New Castle, PA | (724) 656-1055 | info@eacochem.com

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