8 Best Grout Paint in 2026

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For restoring tired tile, the MAPEI UltraCare Grout Refresh earns our best overall nod because it combines color and sealer in a single, precision-tipped bottle that works on both sanded and unsanded grout. For DIYers who want the control of a pen, the Rainbow Chalk Markers Grout Pen offers long-lasting coverage, while the Groutastic White Grout Pen provides three precision tip widths for tricky joints.

The biggest challenge with grout paint is getting it to stick and look uniform. A formula that seals as it colors saves a step, but the applicator type, pen, bottle tip, or squeeze tube, determines how neatly you can work along uneven lines. You also need to consider whether the paint is waterproof or just water-resistant, especially for showers and kitchen backsplashes.

This guide is research-based, drawing on manufacturer specifications, expert round-ups, and patterns in owner feedback. We evaluated eight grout paints on coverage, durability, applicator design, and ease of use to help you find the right match for your project.

Top 8 Grout Paints in the Market

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The Best Grout Paints, Reviewed

#1Best Overall

MAPEI UltraCare Grout Refresh

MAPEI UltraCare Grout Refresh
ApplicatorConvenient applicator tip
Grout typeSanded and unsanded
Volume8 oz
Weight0.5 pounds
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What We Like

  • Seals and colors in one step
  • Works on sanded and unsanded grout
  • Easy applicator tip for precision
  • Long-lasting stain and moisture protection

Trade-offs

  • 8 oz bottle covers limited area per coat
  • Only one color per bottle, no mixing
  • Requires careful tip cleaning between uses

This product combines a grout colorant and sealer in one 8-ounce bottle, so you can restore color and add stain and moisture protection without buying a separate sealer. The formula works on both sanded and unsanded grout, making it suitable for kitchens, bathrooms, and other tiled areas. The bottle includes a convenient applicator tip for even application, and it’s available in a variety of colors to match your décor.

A single 8-ounce bottle of this grout colorant and sealer covers a limited area, so larger bathrooms or whole floors may require more than one bottle. The convenient applicator tip makes it simple to apply the colorant evenly and accurately, which is helpful for DIY projects and professional use alike. It works on both sanded and unsanded grout, making it versatile for kitchens, bathrooms, or any tiled area needing a makeover. Available in a variety of colors, including Biscuit, it lets you match your décor while sealing grout to protect against stains and moisture.

Best for: Homeowners who want a grout colorant and sealer that works on both sanded and unsanded grout. Not ideal for those who need a pen-style applicator for precise lines.

Product photos

#2Best Long-Lasting Coverage

Rainbow Chalk Markers Grout Pen White

Rainbow Chalk Markers Grout Pen White
Coverage150 ft of 2mm grout
Tip Width5mm
Ink TypeWater-based, non-toxic
Pack Size2 pens + extra tips
CompatibilityUnsealed grout only
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What We Like

  • Covers up to 150 feet of grout
  • Waterproof and non-toxic formula
  • Includes extra tips for replacement
  • Works on floors and ceiling tiles

Trade-offs

  • Cotton tip wears down with hard pressing
  • Will not bond to sealed grout

A two-pack covers up to 150 feet of thin 2mm grout, so you can refresh an entire bathroom floor or kitchen backsplash without running out halfway through. The narrow 5mm tip is designed for tracing grout lines, and the water-based, non-toxic formula covers grubby stains for a bright appearance. For anyone working on unsealed grout, this marker offers the convenience of a pen instead of a brush or bottle.

The cotton tip will wear down if you press too hard, so a gentle hand is needed for best results. Unlike some other grout products, this pen only bonds to unsealed grout. You must test with a few drops of water first; if the grout doesn’t absorb it within a minute, it’s likely sealed and the pen won’t work. For a quick refresh on bare grout lines, the Rainbow Chalk Markers Grout Pen delivers coverage as described.

Best for: Homeowners wanting a simple, precise marker for refreshing unsealed grout lines on floors or walls. Not ideal for sealed grout or heavy-pressure application.

Product photos

#3Best Precision Applicator

Groutastic White Grout Pen

Groutastic White Grout Pen
Applicator tips3 tips, 2-3 mm widths
Drying time~5 minutes
Water exposure24 hours after drying
Contents1 pen, 0.1 lb
Dimensions3.7 × 0.6 inches
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What We Like

  • Three precision tip widths for joint fit
  • Paint dries in about 5 minutes
  • Waterproof after 24-hour cure
  • Lightweight pen design

Trade-offs

  • Single pack covers limited area
  • Requires 24-hour wait before water contact
  • Color match varies with existing grout

Three applicator tips with widths around 2-3 mm help you follow grout joints, so you can choose the tip that fits your grout line for controlled application. The paint dries in about five minutes, meaning you can keep working along a wall without long pauses, though you need to wait 24 hours before exposing the area to water. For spot repairs on stained or discolored indoor grout in bathrooms, kitchens, floors, shower walls, or backsplashes, this pen gives you a targeted way to recolor lines without the mess of a bottle.

The trade-off is coverage: a single pen holds enough paint for spot repairs or a modest section, not an entire floor. The 24-hour cure before water contact also means you cannot shower or wipe down the area until the next day, so plan your project around that pause. Still, for targeted fixes where accuracy matters more than volume, the Groutastic pen includes three applicator tips with approximately 2-3 mm widths to help follow grout joints.

Best for: DIYers touching up narrow or uneven grout lines who want pinpoint control and a fast-drying formula. Not ideal for large-scale grout restoration across an entire floor.
#4Best Complete Kit

Grout Shield Grout Restoration System

Grout Shield Grout Restoration System
Coverage350 sq ft (18" tile)
Kit ContentsCleaner, sealant, brush, cloth
ApplicationClean, apply, mop, dry
ColorStandard Dove Gray
Weight2.5 pounds
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What We Like

  • All-in-one kit with cleaner and sealant
  • Covers up to 350 square feet
  • Works on floors, showers, countertops
  • Includes brush and chamois cloth

Trade-offs

  • Single color choice limits tile matching
  • Heavier kit at 2.5 pounds
  • Requires cleaning step before application

Covering up to 350 square feet of 18-inch tile, this kit handles a full bathroom floor or a sizable kitchen backsplash in one go. That generous coverage makes it ideal for anyone tackling multiple rooms or a large tiled area, because you won’t need to buy a second set halfway through. The complete system includes a deep cleaner, color sealant, scrub brush, and chamois cloth, so you have every tool from start to finish without hunting for extras. For a DIYer who wants a straightforward, all-contained solution, this takes the guesswork out of grout restoration.

You’re locked into Standard Dove Gray, which works beautifully for neutral palettes but won’t match darker or bolder grout colors. At 2.5 pounds, the kit is heavier than single-bottle options like the Rainbow Chalk Markers Grout Pen, but it includes both cleaner and sealant plus the application tools. If you value convenience and coverage over color flexibility, this kit provides a complete starter package.

Best for: Homeowners with large tiled surfaces in dove gray tones who want a single kit with cleaner, sealant, and tools. Not ideal for those needing multiple color options or a lightweight touch-up pen.

Product photos

#5Best For Crack Filling

CESTA Tile Grout Repair Kit

CESTA Tile Grout Repair Kit
Size8.8 oz
DryingFast drying
ApplicationSqueeze tube with applicator
FormulaWater-based, low-odor
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What We Like

  • Premixed, no mixing required
  • Squeeze tube with precision applicator tip
  • Fills cracks and gaps directly
  • Water-resistant for bathrooms and kitchens

Trade-offs

  • Only available in white color
  • 8.8 oz tube covers limited area
  • Water-resistant, not waterproof

The squeeze tube with its built-in applicator tip lets you fill cracks and gaps without mixing or special tools, so a damaged grout line can be repaired directly. This makes the CESTA kit suitable for homeowners who need a targeted repair on a single tile joint rather than a full regrout job. The water-resistant, low-odor formula also means you can use it in bathrooms and kitchens without strong fumes, and it dries quickly for less waiting time.

This kit is designed for spot repairs, not for covering large areas. At 8.8 ounces and available only in white, it offers less coverage and color choice than some other products. If you have a single crack or a small area of damaged grout, the CESTA’s targeted applicator and fast drying time provide a convenient solution. But if you need to refresh an entire bathroom floor, a product with broader coverage may be more suitable.

Best for: Homeowners needing a targeted, no-mix repair for cracked or missing grout lines. Not ideal for recoloring large areas or matching non-white grout.

Product photos

#6Best Mildew Guard

Homax Tile Guard Grout Coating

Homax Tile Guard Grout Coating
CoverageUp to 75 sq. ft.
Size4.3 oz applicator
Weight0.3 pounds
Dimensions5.0 x 4.5 x 5.0 in
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What We Like

  • Guards against mildew stains
  • Turns stained grout lines white again

Trade-offs

  • Only available in white
  • Requires careful application to avoid streaking

This applicator covers up to 75 square feet of grout, turning stained lines white again while guarding against soiling and mildew stains. For bathrooms, kitchens, or any damp tiled area where mold is a recurring nuisance, that built-in guard makes it a smart pick, it tackles both the cosmetic fix and the long-term prevention in one step.

You’re limited to white, so if your grout is a color other than white, you’ll need to look elsewhere, say, at the MAPEI UltraCare Grout Refresh, which offers a biscuit shade. Also, the 4.3-ounce bottle is small; for a full bathroom floor, you might need a second one, but for touch-ups or a modest backsplash, it’s plenty.

Best for: Homeowners with white grout who want mildew-resistant restoration in a single, easy-to-use applicator. Not ideal for colored grout or very large tiled areas.
#7Best All-in-One Repair Kit

Hemway Brown Grout Reviver with Tool Kit

Hemway Brown Grout Reviver with Tool Kit
ColorBrown
Size400g tube
Included Tools4 piece profiling kit
DryingFast drying
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What We Like

  • Squeezable tube with precision application
  • Includes 4 profiling tools for smooth lines
  • Fast drying and waterproof formula
  • Triple protection: repairs, renews, fills

Trade-offs

  • Only available in brown, limits color options
  • No sealer included for extra stain protection

The 400g tube gives you enough material to re-color a typical bathroom or kitchen backsplash without having to mix powders or measure anything. The included 4-piece profiling tool kit means you can smooth and shape the grout lines to a professional finish right out of the box. This all-in-one approach suits DIYers who want a straightforward repair that covers staining, fills small gaps, and leaves a consistent brown color across wall and floor tiles. The fast-drying formula is also labeled for non-ventilated workspaces, so it suits interior bathrooms where airflow is limited.

If you want a complete brown grout refresh system, this kit includes four profiling tools so you don’t have to buy anything extra. The MAPEI UltraCare Grout Refresh comes in a 5014 Biscuit color if you need a different shade, but the Hemway delivers a ready-mixed paste in a squeezable tube that is fast drying and waterproof. Just remember the tube is 3.3 inches long and 3.0 inches wide, so it fits easily in a toolbox or drawer.

Best for: Homeowners who want a complete, ready-to-use brown grout repair kit with application tools included. Not ideal for anyone needing a color other than brown or who prefers a separate sealer step.
#8Best Mess-Free Applicator

Danco Tile Grout Coating Pen 0.25 oz

Danco Tile Grout Coating Pen 0.25 oz
Applicator TypeFine-tip pen
Drying TimeFast-drying formula
Size0.25 oz
Dimensions1 x 1 x 7 inches
Weight0.0 pounds
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What We Like

  • Fine-tip applicator for precise coverage
  • Fast-drying formula resists fading and stains
  • Mess-free pen avoids paste or powder hassle
  • Compact and lightweight for easy storage

Trade-offs

  • 0.25 oz is a small volume for large projects
  • Fine tip clogs easily with dried grout.

A fine-tip applicator lets you trace grout lines with precision, even in tight spaces like kitchen backsplashes or bathroom tiles. The fast-drying formula resists fading and stains, and the pen design avoids the mess of grout paste or powders. Its compact, lightweight body stores easily in a toolbox or cleaning kit, making it convenient for quick touch-ups.

Capacity is the main limitation: at 0.25 ounces, the pen is designed for small projects or spot repairs, as stated in the product features. For larger jobs, a product like the MAPEI UltraCare Grout Refresh, with its 8-ounce volume, may be more suitable, but the Danco pen offers the convenience of a mess-free, precise applicator for smaller areas.

Best for: Homeowners needing a quick, no-mess touch-up for small grout areas or spot repairs. Not ideal for whole-room grout restoration projects.

Product photos

How We Evaluated Grout Paints

The evaluation focused on product specs, manufacturer documentation, and common threads in owner reviews. We looked at coverage area, cure time, and whether the paint includes a sealer or requires a separate step.

The four criteria that mattered most were: applicator precision (pen vs. Bottle tip vs. Squeeze tube), formula durability (waterproof vs. Water-resistant, with or without mildew guard), coverage per container, and color options. A grout paint that covers more square feet per bottle saves money on large floors, while a precision applicator is better for narrow or sporadic touch-ups.

A research-led evaluation has limits: we can’t verify how each formula holds up after a year of foot traffic or steam showers. Owner feedback patterns can indicate common issues like tip clogging or color mismatch, but individual results vary with grout age, porosity, and cleaning habits.

What To Look For In Grout Paints

Choosing the right grout paint means matching the applicator to your project size and the formula to your room’s moisture level. Here are the key factors to consider.

Pick a grout paint with an applicator that matches your project: a pen for fine lines, a squeeze tube for filling cracks, or a bottle tip for broad coverage. Check if the formula is waterproof or water-resistant, and whether it includes a sealer.

Applicator Type and Precision

The applicator determines how cleanly you can apply the paint. Pens with fine tips (like the Groutastic or Rainbow Chalk Markers) give you pinpoint control for narrow lines and spot repairs. Bottle-tip applicators (like MAPEI UltraCare) work well for longer runs but require a steady hand. Squeeze tubes with precision nozzles (like CESTA or Hemway) are best for filling cracks and gaps.

Formula Durability: Waterproof vs. Water-Resistant

For showers, kitchen backsplashes, and bathroom floors, a waterproof formula is essential to prevent peeling and staining. Some grout paints are water-resistant only, which means they can handle occasional splashes but not constant moisture. Look for a stated cure time, many formulas need 24 hours before full water exposure.

Coverage and Color Options

Coverage varies widely, from small 0.25 oz pens for spot repairs to kits that cover 350 square feet. Consider the total area of your grout lines, not just the tile surface. Color availability is often limited to white, gray, or brown, so check that your chosen shade matches your existing grout before committing to a full project.

  • Measure your grout line length (not tile area) to estimate how much paint you need.
  • Test the paint on an inconspicuous spot to check adhesion and color match.
  • Clean grout thoroughly before applying; most paints won’t bond to sealed or oily grout.
  • Check if the formula includes a sealer or if you need to apply one separately for stain protection.

A general rule: one 8 oz bottle of grout paint covers roughly 50-75 linear feet of standard 1/8-inch grout lines, depending on application thickness.

Grout Paints Compared

The table below compares all eight grout paints on their key specs and best-use scenarios.

ProductVolume/SizeWeightCoverage
MAPEI UltraCare Grout Refresh8 oz0.5 poundsN/A
Rainbow Chalk Markers Grout Pen White7mL0.1 pounds150 ft of 2mm grout
Groutastic White Grout Pen1 pack0.1 poundsN/A
Grout Shield Grout Restoration SystemN/A2.5 pounds350 sq ft (18" tile)
CESTA Tile Grout Repair Kit8.8 oz0.6 poundsN/A
Homax Tile Guard Grout Coating4.3 oz0.3 poundsUp to 75 sq. ft.
Hemway Brown Grout Reviver with Tool Kit400gN/AN/A
Danco Tile Grout Coating Pen 0.25 oz0.25 oz0.0 poundsN/A

Frequently Asked Questions

Can grout paint be used on sealed grout?

Most grout paints will not bond to sealed grout. You’ll need to remove the existing sealer first, usually with a grout cleaner or a light sanding, before applying the paint. Check the product instructions for specific prep steps.

How long does grout paint last before needing reapplication?

With proper preparation and a waterproof formula, grout paint can last one to three years in low-traffic areas. High-moisture environments like showers may require touch-ups sooner. Owner reports suggest that a separate sealer top coat can extend the life.

Is grout paint the same as grout stain?

Grout paint and grout stain are often used interchangeably, but some products are strictly colorants while others combine color with a sealer. Paint sits on the surface of the grout, while stain penetrates slightly. For best results, choose a product labeled as both a colorant and sealer.

Can I use grout paint on floor tiles?

Yes, many grout paints are formulated for floors, but you need a waterproof, durable formula that can withstand foot traffic. Pen-style applicators work for small areas, while bottle-tip or kit-style products are better for whole floors. Allow the full cure time before walking on the surface.

What’s the best way to apply grout paint without making a mess?

Use a fine-tip applicator pen for narrow lines, and work in short sections. Wipe away excess paint immediately with a damp cloth before it dries. For bottle-tip applicators, practice on a spare tile first to control the flow rate.

The Bottom Line

The MAPEI UltraCare Grout Refresh is the best overall choice for most homeowners because it seals and colors in one step, works on both sanded and unsanded grout, and offers a precision applicator tip. It’s ideal for anyone refreshing medium-sized tiled areas like kitchen backsplashes or bathroom walls.

If you need pinpoint control for narrow or uneven lines, the Groutastic White Grout Pen gives you three tip widths and a fast-drying formula. For large-scale projects, the Grout Shield Grout Restoration System includes cleaner, sealant, and tools to cover up to 350 square feet. Budget-conscious shoppers with small touch-ups should consider the Danco Tile Grout Coating Pen for its mess-free, compact design.

The single most important factor in a successful grout paint project is matching the applicator to your grout line width and the formula to your room’s moisture level. A waterproof, sealed finish will save you from redoing the work in a few months.