C-Cure MP Non-Sanded Grout 923 - Premium Latex-Portland Cement Grout Guide
C-Cure MP Non-Sanded Grout 923 is a premium latex-Portland cement grout formulated for narrow grout joints in ceramic tile, porcelain tile, glass tile, and many natural stone installations. Designed for both residential and commercial projects, it delivers smooth grout joints, excellent color consistency, and long-lasting durability with the convenience of a simple just-add-water formula.
Its factory-blended combination of Portland cement, fine mineral fillers, latex modifiers, and colorfast pigments creates dense, durable grout joints with excellent bond strength, reduced shrinkage, and improved resistance to bacteria, fungus, and everyday wear.
MP Non-Sanded Grout 923 is an excellent choice for bathrooms, showers, kitchen backsplashes, countertops, walls, and floors where narrow grout joints require a smooth, professional finish without the texture of sanded grout.
Why Choose C-Cure MP Non-Sanded Grout 923?
- Premium latex-Portland cement grout.
- Requires only clean water for mixing.
- Designed for grout joints up to 1/8 inch (3 mm).
- Smooth finish ideal for narrow grout joints.
- Excellent color consistency and uniform appearance.
- High bond strength and durability.
- Resists shrinkage, bacteria, fungus, and dusting.
- Minimal efflorescence when properly installed.
- Suitable for residential and commercial tile installations.
Recommended Applications
- Bathroom walls and floors.
- Shower walls.
- Kitchen backsplashes.
- Countertops.
- Ceramic tile installations.
- Porcelain tile installations.
- Glass tile applications.
- Polished natural stone.
- Interior and many exterior tile projects.
Ideal Grout Joint Width
MP Non-Sanded Grout 923 is specifically formulated for grout joints up to 1/8 inch (3 mm). Its smooth, non-abrasive formula is ideal for narrow grout joints and helps reduce the risk of scratching polished marble, glass tile, polished porcelain, and other delicate tile surfaces.
Choosing the Right Grout
MP Non-Sanded Grout 923 is recommended for grout joints up to 1/8 inch. For grout joints from 1/8 inch to 1/2 inch, or for installations requiring a sanded grout for added strength and durability, consider C-Cure MP Sanded Grout 924.
MP Non-Sanded Grout 923 is specifically formulated for grout joints up to 1/8 inch (3 mm). Because it does not contain coarse sand, it produces a smooth finish that is less likely to scratch polished stone, glass tile, or other delicate tile surfaces.
When Should You Choose Non-Sanded Grout?
Non-sanded grout is recommended whenever narrow grout joints or delicate tile surfaces require a smoother grout. It is commonly used for polished marble, glass tile, polished porcelain, and wall tile installations where a fine, uniform appearance is desired.
When Should You Choose Non-Sanded Grout?
Non-sanded grout is recommended whenever narrow grout joints or delicate tile surfaces require a smoother grout. It is commonly used for polished marble, glass tile, polished porcelain, and wall tile installations where a fine, uniform appearance is desired.
Grout Coverage Charts
Use the following grout coverage charts to estimate the amount of grout required based on tile size, grout joint width, and tile thickness. Actual coverage may vary depending on installation conditions and application techniques.
Performance Benefits
When installed according to industry best practices, MP Non-Sanded Grout 923 provides durable grout joints with excellent color stability, strong adhesion, and a smooth finished appearance. Its latex-modified formula improves flexibility and long-term performance while simplifying installation by requiring only clean water for mixing.
Proper surface preparation is one of the most important steps in achieving smooth, durable grout joints with consistent color. Before grouting, verify that the tile installation is firmly bonded and that the setting material has cured according to the mortar manufacturer's recommendations.
Remove tile spacers, excess mortar, dust, and debris from all grout joints. The joints should be uniform in width and depth, with at least two-thirds of the tile thickness available for grout. Any standing water should be removed before grouting begins.
When installing highly porous tile or using contrasting grout colors, test a small area first or apply a grout release if recommended by the tile manufacturer. This can simplify cleanup and help reduce staining.
Mixing Instructions
MP Non-Sanded Grout 923 is designed to be mixed with clean water for most standard installations. Measure the water carefully and use the same mixing ratio throughout the project to help achieve consistent color.
If mixing less than a full container, dry mix the powder first to evenly distribute pigments and fine materials before adding water. Mix to a smooth, creamy consistency using a low-speed drill with a mixing paddle or by hand.
Allow the grout to slake for approximately 15 minutes, then remix without adding additional water unless absolutely necessary. Once the grout begins to stiffen, do not retemper by adding more water. Instead, discard the material and prepare a fresh batch.
Application
Using a hard rubber grout float, force the grout diagonally across the tile surface to completely fill each grout joint while removing trapped air. Work small sections at a time to maintain consistent grout quality throughout the installation.
Remove as much excess grout as possible before it begins to firm. This helps reduce cleanup time and minimizes grout haze on the tile surface.
Once the grout reaches its initial set, clean the tile using a lightly damp microfiber cloth, grout sponge, or approved grout cleanup pad. Avoid excessive water during cleanup, as too much moisture can affect grout color and final strength.
Curing
Proper curing helps develop maximum strength and uniform color. During hot, dry, or windy weather, protect freshly grouted installations from drying too quickly. During cold weather, maintain recommended installation temperatures until the grout has cured.
Avoid heavy traffic, moisture exposure, and aggressive cleaning until the grout has cured according to the manufacturer's recommendations.
Installation Tips for Best Results
- Allow tile setting materials to cure completely before grouting.
- Keep grout joints clean and free of debris.
- Use consistent water measurements for every batch.
- Mix thoroughly to achieve uniform color.
- Avoid adding extra water after the grout begins to stiffen.
- Clean grout haze before it hardens.
- Protect fresh grout from freezing temperatures.
- Use flexible caulk instead of grout at changes of plane and movement joints.
Where MP Non-Sanded Grout 923 Performs Best
- Bathroom walls.
- Shower walls.
- Kitchen backsplashes.
- Countertops.
- Glass tile installations.
- Polished marble.
- Polished porcelain tile.
- Mosaic tile.
- Residential remodeling projects.
- Light commercial applications.
Professional Tip
Non-sanded grout is the preferred choice for narrow grout joints and delicate tile surfaces because its smooth texture helps reduce the risk of scratching polished stone, glass tile, and other sensitive finishes. Using the correct grout for the joint width improves both the appearance and long-term durability of the installation.
Cleanup and Final Cleaning
Begin cleaning only after the grout has started to firm within the joints. Cleaning too early or using excessive water may weaken the grout, create uneven color, and increase the possibility of efflorescence.
Use a lightly damp microfiber cloth, grout sponge, or approved grout cleanup pad to remove grout residue from the tile surface. Rinse cleaning materials frequently with clean water while avoiding excessive moisture during cleanup.
After the grout has cured, any remaining grout haze can typically be removed using an appropriate grout haze remover. Always test cleaning products in a small, inconspicuous area before treating the entire installation, especially when working with polished natural stone or glass tile.
Sealing the Grout
Although MP Non-Sanded Grout 923 provides excellent durability and color consistency, applying a quality penetrating grout sealer can help reduce staining and simplify routine maintenance in kitchens, bathrooms, showers, and other frequently used areas.
For best results, allow the grout to cure for approximately 28 to 30 days before applying a penetrating sealer unless the sealer manufacturer specifies otherwise. Applying sealer too soon may trap moisture within the grout and affect its final appearance.
Limitations
- Recommended for grout joints up to 1/8 inch (3 mm).
- Not intended for installations requiring high chemical or acid resistance.
- Cement-based grout is not a waterproof barrier.
- Protect freshly installed grout from freezing temperatures during curing.
- Variations in mixing, temperature, humidity, or cleanup methods may affect final grout color.
- Efflorescence is a naturally occurring condition in cement-based products and is not considered a manufacturing defect.
Technical Specifications
- Product Type: Latex-Portland cement non-sanded grout.
- Recommended Joint Width: Up to 1/8 inch (3 mm).
- Mixing: Just add clean water for most installations.
- Packaging: 5 lb, 10 lb, and 25 lb containers.
- Initial Set: Approximately 2 hours.
- Final Set: Approximately 8 hours.
- Working Time: Approximately 2 hours.
- Compressive Strength: Exceeds 3,200 psi after 28 days.
- Water Absorption: Less than 5%.
- Storage Life: One year when stored in a cool, dry location in unopened packaging.
- Available in a wide range of grout colors.
Safety Information
This product contains Portland cement and crystalline silica. Avoid breathing dust and prevent contact with eyes and skin. Wear appropriate eye protection, gloves, and a NIOSH-approved respirator when mixing or handling dry grout. Keep out of reach of children and always follow the safety instructions provided on the product packaging.
Warranty Information
C-Cure publishes installation recommendations and technical specifications based on laboratory testing and field experience. Product performance depends on proper surface preparation, installation methods, environmental conditions, and ongoing maintenance. Always follow the latest manufacturer instructions and current tile industry standards for the best results.
Helpful Resources
Explore more guides on grout, caulk, tile installation, and tile care.
- How to Remove Silicone Caulking
- How to Clean Porcelain Tile Floors
- C-Cure Frequently Asked Questions
- C-Cure MP Sanded Grout 924 Guide
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