Prosoco Safety Klean Low Corrosion Masonry Cleaner

Prosoco Safety Klean – Low Corrosion Masonry Cleaner for New Construction

Prosoco Enviro Klean Safety Klean is a professional-grade, low-corrosion masonry cleaner engineered as a direct replacement for traditional acidic compounds on new construction job sites. Formulated for cleaning brick, tile, and concrete, it effectively removes excess mortar, dirt, efflorescence, and common construction soiling without the hazards associated with hydrochloric or other inorganic acids. Sold in a 5-gallon container, it is well-suited for contractors and trades professionals managing large-scale masonry cleandown operations where efficiency and site safety are both priorities. It is equally effective for interior and exterior applications.

Unlike traditional mineral or organic acid cleaners, Safety Klean contains no hydrochloric or other inorganic acids, making it non-fuming and safe for use on and around most metal surfaces. It delivers up to 70 percent greater cleaning effectiveness than citric and glycolic acids, and 50 percent more than phosphoric acid, giving contractors a measurably superior result without the regulatory and safety trade-offs of conventional products. It is the go-to solution for projects where traditional acidic cleaners are prohibited by specification or site conditions.

Key Features & Benefits

No Inorganic Acids – Metal-Safe Formula

Safety Klean contains no hydrochloric or other traditional inorganic acids, making it safe for use on and around most metal surfaces. This is a critical advantage on job sites where metal fixtures, hardware, or framing may be exposed during the cleaning process. Contractors can proceed with confidence without scheduling work around protecting every metal surface.

Superior Cleaning Performance vs. Competing Acids

The formula is up to 70 percent more effective than citric and glycolic acids and 50 percent more effective than phosphoric acid. This means fewer passes, less product used per square foot, and faster project completion. Contractors get a proven clean without resorting to more hazardous chemistry.

Removes Efflorescence Including Secondary Efflorescence on Concrete Block

Safety Klean is specifically formulated to remove both standard efflorescence on brick, concrete, tile, and stone, as well as secondary efflorescence on concrete block — a common and difficult problem in new masonry construction. This dual capability reduces the need for multiple specialty cleaners on a single project.

Low Odor, Non-Fuming, and Water-Rinsable

The non-fuming, low-odor formulation allows use in occupied or semi-enclosed environments without the ventilation demands of traditional acid-based cleaners. Water-rinsability simplifies cleanup and helps crews maintain productivity without additional solvents or neutralizers.

Concentrated Formula for On-Site Dilution

Supplied as a concentrate, Safety Klean can be diluted on-site, reducing shipping weight and storage space relative to pre-diluted alternatives. This also gives crews the flexibility to adjust concentration based on the severity of soiling and the substrate being cleaned.

Environmentally Responsible and VOC Compliant

Safety Klean is compliant with all national, state, and district VOC regulations, making it appropriate for use across a wide range of jurisdictions without special permitting concerns. Its environmentally responsible chemistry supports green building specifications and contractor compliance with increasingly strict site regulations.

Common Applications

New Brick Masonry Cleandown

Removes mortar smears, excess grout, and construction soiling from newly laid brick facades. Best results are achieved when cleaning is completed within 14–28 days of installation.

Concrete and Concrete Block Cleaning

Effectively cleans mortar residue and removes secondary efflorescence from concrete block — a common challenge in new masonry construction that standard cleaners often fail to address adequately.

Tile Surface Cleaning

Cleans tile surfaces of mortar smears, dirt, and construction soiling without the corrosive risk that inorganic acid cleaners pose to tile glazing and surrounding materials.

Interior Masonry Cleaning

The non-fuming, low-odor formula makes Safety Klean suitable for interior cleaning applications where ventilation is limited and fume exposure must be minimized.

Projects Where Traditional Acidic Cleaners Are Prohibited

Ideal for job sites, municipalities, or building specifications that restrict or prohibit the use of traditional mineral or organic acid cleaners. Safety Klean satisfies these requirements without sacrificing cleaning performance.

Efflorescence Removal on Brick, Stone, and Tile

Removes efflorescence deposits from brick, concrete, tile, and stone surfaces as part of post-construction cleanup or remediation of staining that develops after installation.

Compatible Materials

• Brick
• Concrete
• Concrete block
• Tile
• Stone (excluding polished marble, limestone, and travertine)
• Most metal surfaces (test required — can cause discoloration or corrosion on certain metal types)

Product Documents

• Product Data Sheet
• Product Data Sheet (Canadian French)
• Product Data Sheet (Spanish)
• Safety Data Sheet
• Safety Data Sheet (Spanish)
• SDS Canadian French

Application Instructions

Pre-Cleaning Preparation

1. Clean masonry before installing non-masonry materials such as windows, doors, finished flooring, metal fixtures, hardware, light fixtures, roofing materials, or any other materials that could be harmed by the cleaner.
2. If cleaning must occur after non-masonry materials are installed, test all substrates not intended for treatment with Safety Klean before full-scale application. If testing is not feasible or indicates adverse effects, protect substrates from product splash, residue, wind drift, and fumes using Sure Klean Strippable Masking or polyethylene sheeting.
3. Ensure all caulking and sealant materials are in place and thoroughly cured before cleaning begins.
4. When applying to exteriors of occupied buildings, cover all windows and exterior intake and air conditioning vents, and shut down all air handling equipment during application.
5. Protect open wall cavities from rain during construction to minimize moisture-driven efflorescence.
6. Verify that air and masonry surface temperatures are 40°F (4°C) or above. Do not clean when temperatures are below freezing or expected to drop below freezing overnight. Allow adequate time for frozen masonry to thaw before application.
7. When working over active traffic areas, schedule cleaning when traffic is at a minimum and protect or divert traffic as necessary.

Timing

1. For best results, complete cleaning within 14–28 days of masonry installation. Mortar and grout smears left on the surface longer are more difficult to remove and may cause undesirable results.
2. For high-strength mortar or grout, cleaning within seven days of installation improves results.

Equipment

1. Apply using a roller, densely filled (tampico) masonry washing brush, or low-pressure spray (50 psi maximum).
2. Do not apply with high-pressure spray. Do not atomize the product.
3. For rinsing, use masonry-washing equipment generating 400–1000 psi with a water flow rate of 6–8 gpm. This water-pressure combination is optimal for flushing spent cleaner and dissolved soiling from masonry surface pores.
4. Rinse with sufficient water and pressure to completely flush spent cleaner and dissolved soiling from the masonry surface and surface pores without causing damage. Inadequate rinsing leaves residues that may stain the cleaned surface.

Technical Specifications

Safety Data Summary

Hazard Information

• Contains no hydrochloric or other traditional inorganic acids, but is an acidic product (pH 0.35 in concentrate) and should be handled accordingly.
• Not suitable for polished marble, limestone, or travertine surfaces.
• Can cause discoloration and corrosion on certain types of metals — always test before full application.
• May damage exposed low-E glass treatments; acrylic and polycarbonate sheet glazing; and glazing with surface-applied reflective, metallic, or other synthetic coatings and films. Always test for adverse effects prior to overall application. If testing is not feasible or indicates adverse effects, protect these substrates.
• Extended contact with the cleaning solution or its vapors may result in discoloration or damage to unintended substrates.
• Flash point greater than 200°F (>93°C); not classified as flammable under standard conditions.
• 24-Hour Emergency Information: INFOTRAC at 800-535-5053

Personal Protective Equipment

• Always read the full label and Safety Data Sheet (SDS) for complete precautionary instructions before use.
• Use appropriate safety equipment during application and handling as specified in the SDS.
• Use appropriate eye protection, chemical-resistant gloves, and protective clothing when mixing and applying.
• Ensure adequate ventilation during interior application even though the product is low-odor and non-fuming.

Safe Handling

• Store in a tightly sealed, unopened container in a controlled environment to maintain 3-year shelf life.
• When applying to occupied buildings, cover all exterior intake vents, air conditioning vents, and windows, and shut down air handling equipment during application.
• Protect open wall cavities from rain during construction to reduce moisture-driven efflorescence and staining.
• Do not apply when temperatures are below freezing or expected to drop below freezing overnight.
• Do not apply with high-pressure spray or atomize the product during application.
• Keep product away from non-masonry materials that could be harmed by acidic chemistry; use Sure Klean Strippable Masking or polyethylene sheeting for protection where needed.

Frequently Asked Questions

Q: Why should I use Safety Klean instead of muriatic (hydrochloric) acid for cleaning new brick?
A: Safety Klean contains no hydrochloric or other inorganic acids, making it non-fuming and safer to handle around metal surfaces, workers, and occupied environments. It is up to 70 percent more effective than citric and glycolic acids and 50 percent more effective than phosphoric acid, delivering a superior clean without the corrosive hazards and regulatory restrictions associated with muriatic acid.

Q: Can Safety Klean be used indoors?
A: Yes. The low-odor, non-fuming formula is suitable for interior cleaning applications. When working in occupied or semi-enclosed areas, ensure adequate ventilation and follow all SDS precautions.

Q: How soon after masonry installation should I apply Safety Klean?
A: For best results, clean within 14–28 days of masonry installation. For high-strength mortar or grout, cleaning within seven days improves outcomes. Mortar and grout residues left on surfaces longer become increasingly difficult to remove and may cause undesirable results.

Q: What surfaces should NOT be cleaned with Safety Klean?
A: Safety Klean is not suitable for polished marble, limestone, or travertine. It can cause discoloration or corrosion on certain metal types and may damage exposed low-E glass treatments, acrylic and polycarbonate sheet glazing, and glazing with surface-applied reflective, metallic, or synthetic coatings. Always test prior to full-scale application and protect vulnerable substrates accordingly.

Q: How do I dilute Safety Klean for use on site?
A: Safety Klean is supplied as a concentrate for on-site dilution. A typical dilution ratio is 1:3 (product to water), which yields a pH of approximately 0.74. Always refer to the current Product Data Sheet for specific dilution guidance based on substrate type and soiling severity.

Q: What equipment should I use to apply and rinse Safety Klean?
A: Apply using a roller, densely filled tampico masonry washing brush, or low-pressure spray not exceeding 50 psi. Do not atomize or use high-pressure spray for application. For rinsing, use masonry-washing equipment generating 400–1000 psi at a water flow rate of 6–8 gpm to effectively flush spent cleaner and dissolved soiling from surface pores. Inadequate rinsing can leave residues that stain the cleaned surface.