F9 Efflo Efflorescence and Calcium Remover

F9 Calcium & Efflorescence Remover is a professional-strength masonry restoration cleaner engineered to tackle stubborn calcium deposits, efflorescence, calcium carbonate, hard water stains, excess mortar, and mineral buildup on concrete, brick, pavers, grout, and other masonry surfaces.

Designed as a powerful alternative to traditional muriatic acid, F9 delivers the performance restoration contractors need while offering a more user-friendly application experience. Its buffered acid formulation produces significantly less fumes than full-strength hydrochloric acid, while built-in foaming and soaping action helps the cleaner cling to surfaces and attack mineral deposits effectively—even at diluted concentrations.

Whether you’re restoring stained pavers, removing white efflorescence from brick, cleaning calcium deposits from concrete, or preparing concrete for a coating, F9 Calcium & Efflorescence Remover gives professional pressure washing, restoration, and hardscape contractors a versatile chemical for demanding jobs.

Why Professionals Choose F9 Calcium & Efflorescence Remover

• Professional-strength muriatic acid replacement
• Up to 95% less fumes than full-strength HCl/muriatic acid
• Quickly attacks calcium, efflorescence and calcium carbonate
• Removes stubborn hard water and mineral stains
• Excellent for concrete, brick, pavers, grout and masonry
• Can be used for concrete etching and coating preparation
• Buffered formulation helps reduce unwanted fuming and corrosion compared with conventional muriatic acid
• Built-in foaming/soaping action improves surface contact
• Highly concentrated formula allows dilution based on the severity of staining
• Suitable for professional pressure washing, paver restoration, masonry cleaning and surface preparation

Common Applications

F9 Calcium & Efflorescence Remover is ideal for professional cleaning and restoration of concrete driveways, sidewalks, pool decks, patios, brick, pavers, retaining walls, grout, masonry, stucco, exposed aggregate, limestone, sandstone and other compatible mineral surfaces.

Common applications include removing:

Efflorescence • Calcium Deposits • Calcium Carbonate • Hard Water Stains • Mineral Deposits • Excess Mortar • Construction Residue • Mud Stains

At stronger concentrations, F9 can also be used to etch and prepare concrete before painting, sealing, or applying coatings.

Recommended Dilution Ratios

For concrete, brick, pavers, grout and masonry:

Important: Always add the product to water — never add water to acid. Start with cold water, then carefully add the appropriate amount of F9.

How to Apply

Pre-clean heavily soiled surfaces when necessary to remove dirt, grease, oil and loose debris. Lightly mist the surface with water so it is damp without creating puddles.

Mix F9 at the appropriate dilution and apply using a compatible pump sprayer, handheld sprayer or professional chemical application system. The surface should begin to foam as the product reacts.

Allow approximately 20 seconds to 3 minutes of initial dwell time, keeping the surface wet. Agitate stubborn deposits with a hard-bristle brush or broom when necessary. Additional dwell time may be used depending on the surface and severity of staining.

Do not allow F9 to dry on the surface.

Neutralize and thoroughly rinse or pressure wash the treated area after application. Evaluate the results and repeat using an adjusted dilution when necessary. Multiple controlled applications are generally preferable to one excessively strong application.

Coverage

Approximate coverage will vary based on surface porosity, staining severity, dilution and application method.

Porous masonry: approximately 200–400 sq. ft. per gallon
Sealed/non-porous masonry: up to approximately 1,200 sq. ft. per gallon

Suitable Surfaces

F9 Calcium & Efflorescence Remover may be used on compatible concrete, brick, pavers, limestone, sandstone, riverstone, exposed aggregate, stucco, shingles, EIFS, glass, synthetic stone, anodized aluminum, unpolished marble and other surfaces.

Always test a small, inconspicuous area before full application. F9 can etch masonry and may not be appropriate for polished or glazed surfaces, metallic or synthetic coatings/films, acrylic, or polycarbonate sheet glazing.

Professional-Grade Calcium & Efflorescence Removal

For contractors who need more than an ordinary concrete cleaner, F9 Calcium & Efflorescence Remover delivers restoration-grade mineral deposit removal without relying on conventional full-strength muriatic acid. From white efflorescence on pavers to heavy calcium deposits and concrete coating preparation, F9 provides the concentration and versatility needed for professional results.

Available sizes: 1 Gallon, 5 Gallon, 55 Gallon and 275 Gallon containers.

 Contact us for a freight/shipping quote on larger quantities.