What is the Best Grout to Use for Kitchen Backsplash?

Choosing the right grout for your kitchen backsplash is one of the most important decisions you’ll make during your renovation or remodel. The grout lines act as the mortar between the tiles, helping to secure them in place while also adding visual interest and dimension to the overall design. With so many grout options on the market, it can be tricky to determine which type best suits your needs and style. This comprehensive guide will walk you through the pros and cons of the most popular grout varieties to help you select the best grout for your kitchen backsplash.

Epoxy Grout

Epoxy grout has gained immense popularity in recent years as a durable and stain-resistant option for kitchen backsplashes. This type of grout consists of an epoxy resin blended with a filler powder like silica sand or Portland cement. The epoxy cures into an incredibly hard, plastic-like finish that resists cracks, chips, and water penetration.


  • Extremely durable and long-lasting
  • Stain, chemical, and scratch resistant
  • Won’t shrink or crack over time
  • Available in a wide range of colors
  • Creates a hygienic, easy-to-clean finish


  • Difficult to work with and install
  • Requires careful prep work and precision
  • Can be expensive compared to other grouts
  • Color uniformity can be tricky to achieve
  • Nearly impossible to remove fully once cured

Epoxy grout is ideal for kitchens that demand maximum stain resistance and durability. The nonporous finish prevents absorption of oils, greases, and acids that can discolor traditional cementitious grouts. Just be sure you’re comfortable with the installation requirements before choosing epoxy. Precision is key, as uneven application can lead to an uneven appearance.

Polymer-Modified Grout

For another high-performance option, consider polymer-modified grout. This type combines Portland cement with latex acrylic polymers and color tints to create a durable, flexible grout. The polymers make the cured grout more resilient and flexible while also improving adhesion and resistance to cracks and shrinkage.


  • Excellent durability and stain resistance
  • Resists shrinking, cracking, and chipping
  • polymer additives improve flexural strength
  • Available in a wide array of colors
  • Easier to work with than epoxy grout


  • More expensive than standard cement grout
  • Requires proper sealing to achieve maximum stain resistance
  • Not as durable as epoxy grouts
  • polymers can break down with prolonged UV exposure

Polymer-modified grouts offer a nice compromise between the durability of epoxy and the ease of use of standard cement. The enhanced flexibility allows it to hold up well under daily use without cracking or crumbling prematurely. Just be sure to seal thoroughly after installation and perform routine sealing every 1-2 years.

Standard Cement Grout

For many homeowners, standard cement-based grout offers the best combination of affordability and function. This type consists primarily of Portland cement, hydrated lime, powders pigments, and mineral fillers. It’s the most common, widely available grout option.


  • Budget-friendly price point
  • Readily available in home improvement stores
  • Easy to mix, apply, and clean excess off tiles
  • Can achieve subtle style variations based on finish
  • Allows moisture vapor transmission for better curing


  • Requires extensive sealing to resist stains
  • Prone to shrinkage cracks over time
  • Not as durable or flexible as polymer or epoxy grouts
  • Pigment can fade with heavy cleaning or exposure to sunlight

Cement grout works well for most low-traffic backsplashes. It provides sufficient durability at an affordable cost. Just be diligent about sealing the grout lines every 6-12 months to protect the finish and color. Also, take extra precautions during installation to prevent shrinking or cracks.

Sanded vs. Unsanded Grout

Beyond the material composition, you’ll also need to decide between sanded and unsanded varieties. Sanded grout contains fine silica sand in the mixture, while unsanded does not.

Sanded Grout

Best for grout joints wider than 1/8 inch due to added structural strength. The sand helps prevent shrinking and cracking in wider grout lines. It provides a slightly textured finish.

Unsanded Grout

Ideal for narrow grout lines of 1/8 inch or less. The lack of sand allows it to fully reach into narrow joints. Finishes smoothly without textured feel of sanded grout.

Always check the manufacturer’s recommendations, but most tile professionals recommend sanded grout for floor installations and unsanded for walls. Sanded grout is too rough and textured for vertical applications. The smooth finish of unsanded grout provides an elegant appearance on backsplashes.

Grout Color Considerations

Grout color plays a big role in the aesthetic impact of your backsplash. You have several options:

  • Match the grout color to your tiles for a monochromatic, seamless look
  • Choose a contrasting grout color to accentuate the tile edges
  • Opt for bright white grout lines for a clean, minimalist style
  • Go bold with a dark-colored grout against light tile
  • Try shaded grout that ties into the tile color palette

Base your choice on the overall style you want to achieve. Keep in mind that lighter grouts like white show dirt easily. Darker pigmented grouts can discolor or fade over time. Sample boards with grout lines can help visualize the options.

Grout Performance Tips

To achieve the best results from your grout choice, keep these tips in mind:

  • Always follow manufacturer mixing and application instructions precisely
  • Plan for sufficient curing time before cleaning or sealing grout
  • Use spacers between tiles to ensure uniform grout line widths
  • Work in small sections for easier grout application and clean up
  • Clean tiles thoroughly before grouting to prevent haze and film
  • Avoid wiping or disturbing freshly grouted joints until cured
  • Seal cementitious grout every 6-12 months for maximum stain resistance
  • Routinely clean epoxy and polymer grouts with pH-neutral cleaners

Proper installation and maintenance practices go a long way in maximizing the lifespan and performance of your grout.

Grout Maintenance Tips

Day-to-day maintenance is essential for your grout. Here are some handy tips:

  • Sweep or vacuum regularly to remove loose dirt and debris
  • Mix mild dish soap and warm water for routine grout cleaning
  • Look for pH-balanced cleaners formulated for grout and tile
  • Re-apply penetrating sealers every 1-2 years for cement grouts
  • Avoid oil-based cleaners, dyes, and bleaches that can stain
  • Minimize moisture contact by sealing any cracked or missing grout
  • Re-grout any areas that show significant wear, shrinkage, or damage

Well-cared-for grout should last years without needing full replacement. Stay vigilant with cleaning and re-sealing, and your kitchen backsplash will maintain its beauty and function.

Signs It’s Time to Re-Grout

While grout can last indefinitely with proper care, there are some telltale signs that re-grouting is in order:

  • Expanding hairline cracks in multiple areas
  • Large cracks wider than 1/16 inch
  • Low spots or crumbling where grout has worn away
  • Discoloration that can’t be cleaned with routine maintenance
  • Grout that appears gunky or retains moisture
  • Loose, sagging grout joints indicating failure
  • Significant staining despite attempts to clean and seal

Isolated issues can often be addressed with spot re-grouting. But once damage becomes more widespread, a full re-grouting of the backsplash may be required. Be sure to address any underlying movement or moisture issues first.

Grout Removal Tips

If re-grouting is needed, you’ll first have to remove the old grout. This can be challenging, especially with epoxy or polymer grouts. Here are some removal tips:

For cement grout:

  • Use an oscillating multi-tool to lightly scrape out old grout
  • Apply a chemical grout remover product if needed
  • Allow remover to sit for the recommended time
  • Gently scrub with a stiff-bristle grout brush
  • Rinse thoroughly with clean water

For epoxy/polymer grout:

  • Carefully cut out old grout with a utility knife
  • Use a rotary tool or oscillating multi-tool to assist removal
  • Avoid harsh scraping or grinding to prevent tile damage
  • Use chemical strippers/removers compatible with epoxy or polymers
  • Protect surfaces and exercise caution when using chemical strippers

Removing all old grout is vital for proper adhesion and performance of new grout. Take your time with this step. Once the joints are clean, you can re-grout with fresh, quality grout.


What is the easiest grout to apply?

Unsanded grout is generally the easiest type to mix, apply, and clean off tile surfaces. The smooth texture allows it to easily fill narrow joints.

Does all tile need to be sealed before grouting?

Sealing prior to grouting is not mandatory but is highly recommended. It provides an added layer of protection against stains and facilitates cleaner grout removal.

How long does grout take to dry?

Cement grout takes 24-72 hours to cure initially but should not be exposed to moisture for a full 7 days. Epoxy grouts cure within 24 hours. Always follow manufacturer cure times.

Can I grout over existing grout?

In most cases, it is not recommended to grout over old grout. The new grout will not adhere properly. Old grout should be fully removed before applying fresh grout.

What’s the most stain resistant grout?

Epoxy grout provides the highest stain and water resistance. Polymer-modified grouts also offer enhanced resistance compared to standard cement grouts.

How do I get a smooth grout finish?

Using unsanded grout, sealing the tiles, and applying grout correctly can all help achieve a smooth finish. Avoid excess water and overworking the grout when cleaning.


The grout used for your kitchen backsplash plays a subtle but important role in the overall look, performance, and longevity of the design. Consider all the options—epoxy, polymer-modified, standard cement—and weigh the pros, cons, and costs before deciding. Be sure to pair your grout selection with proper installation and care for impeccable results. With this guidance, you can choose the ideal grout to complement your backsplash style for years to enjoy.