Kitchen backsplashes can really enhance the look and feel of your kitchen. They provide an extra layer of protection for the wall behind your countertop and add visual interest to your space. However, over time grout lines can become stained, making your backsplash look dirty and dingy. This leads many homeowners to wonder – does kitchen backsplash grout need to be sealed?
What is Grout Sealer?
Grout sealer is a liquid product that is applied to grout lines in order to protect them from stains and moisture. It works by forming an impervious barrier over the surface of the grout, preventing water, oils, and other contaminants from being absorbed into the grout. This keeps the grout looking clean and uniform in color.
There are two main types of grout sealer:
- Penetrating sealers – These are absorbed below the surface and into the pores of the grout. They provide protection without altering the natural look of the grout.
- Topical sealers – These coat the surface of the grout lines to create a protective barrier. They slightly alter the look of the grout, giving it a glossy, coated appearance.
Should You Seal Your Kitchen Backsplash Grout?
Sealing your kitchen backsplash grout is generally recommended for a few key reasons:
Prevent Staining
One of the biggest benefits of sealing grout is stain prevention. Unsealed grout is porous and can easily soak up foods, oils, and liquids that can leave behind stubborn stains. A grout sealer provides a protective barrier to keep these contaminants from being absorbed into the grout. This keeps your grout lines looking clean and uniform.
Easier Cleaning
Sealed grout is much easier to clean than unsealed grout. Spills and messes can often be wiped right off the surface without leaving a stain. You won’t have to scrub as aggressively either. The sealer allows you to simply wipe the surface clean occasionally to maintain the look.
Moisture Protection
Excess moisture can cause unattractive mildew and mold growth in grout lines. A grout sealer provides a waterproof coating that prevents moisture from being absorbed into the grout. This inhibition of moisture absorption helps prevent mold and mildew growth.
Enhanced Look
Over time, unsealed grout can start to look dirty and discolored, even after cleaning. Sealing the grout provides an enhanced, uniform look. It keeps the grout looking like new and prevents uneven discoloration.
What Areas Should Be Sealed?
For a kitchen backsplash, you’ll want to seal all exposed grout lines surrounding the tiles. This includes:
- Grout between backsplash tiles
- Grout between backsplash tiles and countertops
- Grout between backsplash tiles and walls
- Any other exposed grout lines in the backsplash area
Focus on any grout lines that may be exposed to moisture, grease splatter, or food drips and stains.
When Should You Seal the Grout?
It’s best to seal grout shortly after it has been installed and has had sufficient time to fully cure. Fresh grout should cure for a minimum of 72 hours before sealing. Sealing at this early stage will provide immediate protection for the grout.
For existing backsplash grout that has not been sealed, you can seal it at any time. Thoroughly clean the grout lines before applying the sealer according to the product instructions. Re-application is recommended every 1-5 years depending on traffic, exposure, and the sealer used.
How to Seal Grout
Sealing grout is a relatively easy DIY project. Here is a step-by-step guide:
- Clean the grout lines thoroughly to remove any dirt, debris, grease, or grime. Use a specially formulated grout cleaner or a mixture of vinegar and water.
- Allow grout lines to fully dry after cleaning.
- Apply grout sealer according to product instructions. Typically this involves using a sponge brush or applicator bottle to apply a thin, even coat over all grout lines.
- Allow sealer to soak in and dry completely, usually 30 minutes to 1 hour. Apply a second coat if desired for maximum protection.
- Wipe away any excess sealer with a dry cloth. Check for shiny areas and wipe again if needed.
- Avoid cleaning or getting the sealed grout wet for the amount of time specified on the product label, usually 24-48 hours.
- Re-apply grout sealer every 1-5 years for optimal results.
DIY vs Hiring a Professional
Applying grout sealer is a relatively easy DIY project for most homeowners. However, if you want to ensure it is done properly, hiring a professional may be worthwhile. Professionals have the right tools and expertise to efficiently apply an even coat of sealer on all grout lines. They can also advise on the best sealant for your particular application.
Frequently Asked Questions
How long does grout sealer last?
Most grout sealers will last 1-5 years before needing reapplication. Penetrating sealers tend to last longer than topical sealers. The longevity depends on the product used, traffic, and exposure levels.
Can you use grout sealer on all types of tile?
Grout sealer is safe for use on grout lines between all types of tile including ceramic, porcelain, glass, marble, granite, and stone. Always check the product instructions for any limitations.
Should you seal grout before or after cleaning?
It’s best to seal grout after a deep clean when the grout lines have been thoroughly cleaned. Sealing dirty or contaminated grout can seal in stains.
Is sealing grout necessary for backsplashes without exposure to liquids?
Sealing these grout lines is still beneficial to prevent stains from grease splatters and food drips. It also keeps the grout looking uniform and enhances the overall look.
Can you apply new grout sealer over existing sealer?
In most cases, you do not need to strip old sealer before re-application. Check the product instructions to be sure the new sealer is compatible with old layers.
The Bottom Line
Sealing your kitchen backsplash grout provides excellent protection against stains, moisture damage, and grime buildup. It also makes cleaning easier and keeps the grout looking new. For best results, seal grout shortly after installation and re-apply every 1-5 years. With proper sealing, your beautiful backsplash and crisp grout lines will stay looking great for many years.