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Aqua Mix Sealer’s Choice Gold is a premium water-based penetrating sealer for natural stone, tile and grout, sold in pint, 24 oz, quart and larger sizes. It leaves no sheen, keeps a natural look, and is one of the most recommended sealers for kitchen and bath stone and grout. Bottom line: excellent at its intended job, but the quart is a small-area product, and for big concrete slabs you will get far more value from a concrete-specific sealer.
| Type | Penetrating (impregnating) sealer, no film |
| Chemistry | Water-based, siloxane-based penetrating formula; current version is PFAS-free |
| Finish | No sheen; maintains the natural look of most stone |
| Coverage | Quart: about 50–200 sq ft (two coats); gallon: about 200–800 sq ft (current PFAS-free data sheet) |
| Coats | Two coats assumed; second coat at least 30 minutes after the first |
| Dry/recoat | Light foot traffic 30 minutes after the final buff; keep dry for 24 hours |
| Cure | Maximum stain protection after 24 hours |
| Best for | Natural stone, tile and porous grout, indoors and out; kitchen counters and food-prep areas |
| Not for | Preventing acid etching on marble/limestone; surfaces with existing waxes, sealers or finishes |
| New concrete | No concrete cure wait stated; allow new grout and adhesives at least 48 hours |
Watch: Sealer's Choice Gold in 60 seconds
What It Is / How It Works
Aqua Mix is a Custom Building Products brand, and Sealer's Choice Gold has long been its flagship "maximum protection" penetrating sealer. Instead of forming a coating on top, it soaks into the pores of stone, tile and grout and lines them with water- and oil-repellent material. The surface keeps its natural texture and look, and moisture vapor can still escape, which matters for stone and grout that see wet cleaning or steam from cooking.
One important update: in 2026 Custom Building Products began selling Sealer's Choice Gold PFAS-Free, which the company bills as "the next evolution of Gold." The new technical data sheet (TDS-528, August 2026) lists the quart as item 030882-4-PF. Some retailers still list the original formula and its older data, so check which version you are buying. The new formula claims up to 10 years of protection under natural exposure and routine wear, and stain resistance for up to one hour of exposure. It can also be used as a pre-grouting sealer and is recommended for food preparation and serving areas.
Because it is penetrating, it does not make stone harder, add shine or stop surface wear. Custom's data sheet is clear that it does not prevent etching from acids or caustic chemicals. On marble or limestone, lemon juice and vinegar can still dull the surface; the sealer buys you time to wipe up stains, not immunity.
Where It Works Best (and where it doesn't)
Sealer's Choice Gold is at home on granite and other natural stone counters, stone and tile floors, shower and backsplash grout, and exterior stone and pavers where you want stain resistance without any change in look. The quart size suits a kitchen counter, a bathroom floor or a tile backsplash.
It makes less sense on large concrete areas. The original formula's data sheet listed concrete, brick and masonry among its surfaces, and Home Depot's listing still names concrete, but the current PFAS-free sheet focuses on natural stone, tile and porous grout. At quart coverage of roughly 50–200 sq ft, sealing a driveway or patio with it would be expensive. Concrete-specific penetrating sealers cover far more area per dollar; see our best penetrating concrete sealers. It is also not a fix for acid etching, and it won't bond into surfaces that already carry a wax, sealer or finish.
Pros
- No-sheen, natural look on most stone, tile and grout
- Rated for stain resistance up to one hour of spill exposure
- Water-based and breathable; usable indoors and out
- Fast: second coat after 30 minutes, light foot traffic 30 minutes after the final buff
- New PFAS-free formula claims up to 10 years of protection
- Recommended for food-prep areas; doubles as a pre-grout sealer
Cons
- Premium price; the quart covers only about 50–200 sq ft
- Poor value for large concrete driveways or patios
- Leaves a white film if it is allowed to dry on the surface
- Doesn't prevent acid etching or surface wear
- Two formulas on shelves in 2026, with different data sheets
How to Apply It
- Test first. Stone varies in density and porosity, so try a small, hidden spot to check appearance and absorption.
- Prep. The surface must be clean, dry and free of waxes, sealers and finishes. Give new grout and tile adhesive at least 48 hours to dry.
- Check temperature. Apply at 50–90°F (current formula).
- Apply a liberal coat. Use a paint pad, sponge, brush or sprayer. On dense, honed or polished stone, work it in with a white nylon pad.
- Wipe it off. Let it penetrate up to 5 minutes or until it starts to dry, then wipe with a damp microfiber towel and buff dry. Don't let it dry on the surface.
- Second coat. Wait at least 30 minutes and repeat. Very porous surfaces may need more.
- Cure. Light foot traffic is fine 30 minutes after the final buff; keep it dry for 24 hours, when it reaches maximum stain protection. Clean with water or a pH-neutral cleaner, and avoid high-alkaline cleaners and steam cleaning.
How It Compares
Aqua Mix Penetrating Sealer is the brand's lower-cost option. It's a reasonable choice for grout and less stain-prone areas where you don't need Gold's top-tier stain resistance.
Other premium stone impregnators, such as Miracle Sealants 511 or StoneTech products, compete in the same space. All of them leave a natural look and none of them stop acid etching, so pick based on availability, coverage and price for your stone.
Concrete silane/siloxane sealers are the better buy for driveways, patios and garage floors. They are built for concrete's porosity and come in sizes priced for hundreds of square feet. Our best concrete sealers for 2026 roundup is a good place to start.
FAQ
How long does Sealer's Choice Gold last?
The PFAS-free formula claims up to 10 years under natural exposure and routine wear. Real life depends on traffic, cleaning products and how porous the surface is. A simple check is to drip water on the surface; if it darkens and soaks in quickly, it's time to reseal.
Is Sealer's Choice Gold food safe?
Custom Building Products recommends it for food preparation and serving areas such as countertops. Follow the label's ventilation and glove guidance during application, and let it cure before use.
Will it change the color of my stone?
It is designed to keep the natural look of most stone with no sheen. Custom notes that some light-colored and polished stones may show residue if the steps aren't followed, so test a hidden area first and buff off all excess.
Can I use Sealer's Choice Gold on concrete?
The original formula listed concrete among its surfaces, and it will penetrate porous concrete. But for anything larger than a small area, it is far more cost-effective to use a sealer made for concrete.
Verdict
For stone counters, tile and grout, Sealer's Choice Gold remains one of the safest picks: natural look, strong stain resistance, quick recoat and a long claimed service life in the new PFAS-free version. It's pricey per square foot, needs careful wipe-off to avoid haze, and isn't the right tool for big concrete jobs. Buy the quart for a kitchen or bath and you'll likely be happy. You can find the current formula on Custom Building Products' product page.
Our rating: 4.3/5
How we reviewed this product: this is a research-based review built from the manufacturer's technical data sheet and current retail listings. We have not run our own hands-on tests of this product. Details were checked in October 2026; always follow the current label.
Where to Buy
