Best Grout for Bathroom Tile (2026) — Stain-Resistant Sanded vs Epoxy Picks
Standard cement grout works fine but stains and needs annual sealing. Epoxy grout costs 3x more, never stains, never needs sealing. For high-end bathrooms: epoxy.
Grout choice impacts how the bathroom looks 3 years after installation. Cement grout discolors from soap scum, hard water, and mildew. Epoxy grout looks the same in year 10 as in year 1. The premium pays itself back.
Quick Comparison
| Pick | Best For | Approx Price |
|---|---|---|
| Best Epoxy Grout | LATICRETE SpectraLock Pro Premium Grout | $50-$80/unit |
| Best Cement Grout | Custom Building Products Polyblend Sanded Grout | $15-$25/bag |
| Best Sealer | Aqua Mix Sealer's Choice Gold Penetrating Sealer | $40-$60 |
Our Picks
Cement (Sanded vs Unsanded) vs Epoxy
Sanded cement grout: joints over 1/8". Standard for floors and most walls. Stains easily, needs annual sealing.
Unsanded cement grout: joints under 1/8". For glass tile and polished-stone walls.
Epoxy grout (Spectralock Pro): 3x cost of cement, 100% stain-resistant, antimicrobial, never needs sealing. Premium standard for showers and bathroom floors.
Color Choice Tips
Match grout to tile color for seamless look. Contrast grout (white tile + black grout) makes a graphic statement but every joint becomes visible. Most homeowners regret high-contrast grout within 2 years.
For shower floors and grout that gets cleaned often: choose mid-tone gray. White stains; dark shows soap residue; mid-gray hides both.
Sealing Cement Grout
Cement grout requires sealing 30 days after install (full cure time) and annually after. Penetrating sealer (Aqua Mix Sealer's Choice) is the standard — soaks into the grout, doesn't leave a film.
Skip sealing and the grout absorbs water, soap residue, and mold spores. Within 2-3 years it discolors permanently.
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Get a Tile/Flooring Quote →Frequently Asked Questions
Epoxy grout worth 3x the cost?
For bathrooms: yes. Permanent stain resistance pays back over 10-15 years vs constant cement-grout sealing/restoration.
How often does cement grout need sealing?
30 days after install (full cure), then annually.
Can I tile over old grout?
No — must remove tile and start fresh. Grout surface won't bond to new mortar reliably.
What grout color?
Match tile for seamless look. Avoid high-contrast unless you're prepared to clean every visible joint.
How much grout do I need?
About 5-10 lb per 50 sq ft of tile. Joint width and tile size affect calculation.
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