Will this change the color of the concrete or stone?

I used the product on bluestone and it did not change the color at all

Can I use this on a outdoor partially painted stepping stone ?

Yes, this can be used. Just be sure to properly apply the product in 2 flood coats. You will know a "flood coat" has been reached when you see pooling that turns milky white.

Is this for indoor stone, such as flagstone?

Yes, you can use Stone Sealer indoors. As long as the flagstone is porous (absorbs water), then you can apply Stone Sealer.

will this work on porcelain shower tiles ?

An easy way to tell is by doing a quick splash test. Simply splash some water on to your tile. If it darkens when wet, it is porous and will accept our Stone Sealer. If the water beads on the surface, it is non-porous and would be a better suited to our Gloss Sealer.

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Rainguard Water Sealers Stone Sealer Spray, Penetrating Protection Against Moisture Damage and Stains, for All Stone Surfaces, Silane/Siloxane Waterproofer, Ready to Use, 16 oz

Rainguard Water Sealers Stone Sealer Spray, Penetrating Protection Against Moisture Damage and Stains, for All Stone Surfaces, Silane/Siloxane Waterproofer, Ready to Use, 16 oz

Product ID: 188477872

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Details

Material
Silicone
Brand
Rain Guard
Style
Protection
Item Weight
16 Ounces
Water Resistance Level
Water

🌿Safe, VOC-free & pet-friendly

💧Hydrophobic barrier repels water

🕒Dries in 1 hour for fast use

Description

💎 Seal the deal with invisible, lasting stone protection!

ECO SMART SAFE - Water-based, odorless, and free from VOCs—safe for your family, pets, and plants while delivering powerful protection.
LONG LASTING DEFENSE - Up to 5 years of protection with a single application, reducing maintenance and preserving your investment.
VERSATILE STONE SAVIOR - Perfect for indoor/outdoor use on floors, chimneys, walkways, fences, and more with a natural, no-gloss finish.
FAST DRY FORMULA FOR BUSY PROS - Dries within 1 hour at 75°F, letting you protect surfaces quickly without downtime.
INVISIBLE SHIELD VISIBLE CONFIDENCE - Creates a filmless, hydrophobic barrier that defends stone from water, oil, stains, and weather damage.

Rainguard Water Sealers Stone Sealer Spray offers a fast-drying, water-based silane/siloxane formula that penetrates porous stone surfaces to create an invisible, hydrophobic barrier. It protects against moisture, stains, freeze-thaw damage, and harsh weather for up to 5 years. Suitable for indoor and outdoor use, it covers up to 125 sq.ft./gallon and dries to a natural, no-gloss finish. Made in the USA, it is free from strong odors and VOCs, ensuring safety for people, pets, and plants.

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$U2157

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TrustScore 4.5 | 7,300+ reviews