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Miracle Sealants Grout Sealer Plus, 16 oz Spray
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At a Glance
Quick Decision Guide
Container Size
16 oz Trigger Spray
Coverage
Up to 500 Sq Ft
Formula
Water-Based Penetrating Sealer
Finish
Invisible
Dry Time
Fast Drying
Antimicrobial
Helps Inhibit Mold & Mildew
Grout Compatibility
Sanded & Unsanded Cementitious Grout
Applications
Interior Residential & Commercial
Why Choose This Product
Key Benefits
Breathable Penetrating Protection
Resists water and stains below the surface while allowing moisture vapor to escape
Oil and Water Stain Resistance
Helps keep common food, drink and water-based stains from penetrating grout
Antimicrobial Protection
Inhibits mold and mildew growth on the surface of the cured sealer film
Easier Routine Cleaning
Helps keep dirt and grime on the surface so they are easier to remove
Invisible Appearance
Dries invisibly to help preserve the grout's natural appearance
Certified Indoor Air Quality
Indoor Advantage Gold certification confirms compliance with stringent long-term VOC emission standards
Product Information
Product Details
Specifications
Brand
Miracle Sealants®
Part Number
392627
UPC
020066248079
Product Type
Penetrating Grout Sealer
Product Name
Grout Sealer Plus
Container Size
16 oz Trigger Spray
Coverage
Up to 500 Sq Ft
Formula
Water-Based
Sealer Type
Penetrating
Finish
Invisible
Dry Time
Fast Drying
Antimicrobial Protection
Helps Inhibit Mold & Mildew Growth
Water Resistance
Yes
Stain Resistance
Yes
Breathable
Allows Moisture Vapor Transmission
Compatible Grout
Sanded & Unsanded Cementitious Grout
Recommended Applications
Countertops, Backsplashes, Vanities, Bathrooms, Showers, Kitchens & Floors
Application Type
Interior Residential & Commercial
About This Product
Water-Based Grout Sealer for Cementitious Joints
Miracle Sealants® Grout Sealer Plus is a professional-grade, water-based penetrating grout sealer for sanded and unsanded cementitious grout. The formula absorbs beneath the surface to help resist water and common stains without creating a visible topical finish. Because moisture vapor can still escape, treated grout remains breathable while gaining practical protection for showers, kitchens, floors, and other frequently used tile installations.
Protection Against Spills, Dirt and Surface Growth
This penetrating sealer helps defend grout against oil- and water-based stains from drinks, food spills, and everyday use. It also helps keep dirt and grime near the surface for easier cleaning. An antimicrobial additive actively inhibits mold and mildew growth on the surface of the cured sealer film, adding useful protection for grout in moisture-prone spaces.
Invisible Protection for Busy Spaces
The convenient spray-on, wipe-off format helps professionals and property owners protect grout in bathrooms, showers, kitchens, countertops, backsplashes, vanities, and floors. It dries invisibly to help preserve the grout's intended appearance and is suitable for heavy-use residential and commercial areas. SCS Indoor Air Quality Indoor Advantage Gold certification confirms the formula meets stringent standards for long-term VOC emissions.
Product Resources
Documentation & Downloads
Common Questions
Frequently Asked Questions
What types of grout can Miracle Sealants Grout Sealer Plus protect?
Miracle Sealants identifies sanded and unsanded cementitious grout as the ideal substrates for Grout Sealer Plus. The technical data does not specifically list epoxy, urethane, or premixed grout, so confirm compatibility with the grout manufacturer or Rust-Oleum before using the product on those materials.
Is Grout Sealer Plus a water-based penetrating sealer or a topical coating?
It is a water-based penetrating sealer that absorbs into cementitious grout rather than leaving a topical coating. It permits vapor to escape and carries SCS Indoor Air Quality Indoor Advantage Gold certification for long-term VOC emissions, but the manufacturer still requires adequate ventilation during application and drying.
How does the antimicrobial protection work?
The formula contains an antimicrobial additive that actively inhibits mold and mildew growth on the surface of the cured sealer film. The manufacturer's claim is limited to that treated film surface; it does not state that the product removes existing growth or replaces routine grout cleaning and maintenance.
Will Grout Sealer Plus change the grout's appearance?
Grout Sealer Plus is designed to dry invisibly and preserve the grout's natural appearance. The manufacturer notes that minimal shading may occur on some grouts, and all excess sealer should be removed from the tile before it dries to help prevent visible residue.
Where can Miracle Sealants Grout Sealer Plus be used?
The manufacturer recommends it for heavy-use residential and commercial grout in countertops, backsplashes, vanities, bathrooms, showers, kitchens, and floors. These uses apply to grout joints within tile installations, so the product should not be treated as a general-purpose tile sealer or stone sealer for the entire surrounding surface.
How is Grout Sealer Plus applied?
Start with clean, dry grout; new grout should cure according to its manufacturer's directions. Spray the product directly onto the grout, allow three to five minutes for penetration, and wipe away all excess before it dries. Protect nearby wood, carpet, metal, landscaping, and other non-masonry surfaces during application.
How long does Grout Sealer Plus take to dry and cure?
For best performance, the manufacturer recommends a second application after two to three hours. The treated area may receive light water exposure or use after four hours. The directions advise allowing 24 to 72 hours for full cure, while the technical table lists 24 hours under standard laboratory conditions.
How much area does one 16 oz bottle cover?
The 16 oz spray bottle can cover up to approximately 500 square feet based on the manufacturer's maximum listed rate of 4,000 square feet per gallon. Actual coverage can vary considerably by the installation, so the 500-square-foot figure should be treated as a maximum estimate rather than a guaranteed project yield.