Can you use the water based product on a chimney that had been previously treated with a solvent based siloxane treatment?

Great question, as long as the previously sealed surface is capable of absorbing water it will soak in the SX5000WB(might not take as much sealer for a touch-up job).

Can I apply a second coat a week after the first coat?

I applied my second coat about 2 weeks after the first coat. The outcome was the same as expected as if the second coat was applied as directed. I did notice that in between the first and second coats, I observed areas not 100% sealed on my surface. However, this was completely rectified following the application of the second coat. After several downpours, my deck has remained completely sealed.

How effective for sealing existing exterior concrete walls showing signs of water damage.

Very effective. Used it on my brick chimney. Rain and snow seemed to slide right off with no absorbtion. Goes on clear so you can not see it.

It rained unexpectedly hours after applied and concrete lools discolored. Will it dry normal or stay discolored? How can we fix?

Give the surface several days to a week and re-evaluate to see if appearance improves. It's possible that the rain caused some of the active ingredients to migrate/build in certain areas. If the surface doesn't improve, please call Foundation Armor tech support M-F EST 9am to 5pm for assistance. There are sodium hydroxide cleaners capable of removing surface deposits(dark spots) if needed.

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🛡️ Seal smart, stay flawless — protect your surfaces like a pro!

ECO FRIENDLY SAFE - Water-based, zero VOC, and odor-free for hassle-free cleanup
LONG TERM RESILIENCE - Up to a decade of water, salt, and freeze-thaw damage resistance
EFFORTLESS APPLICATION - Ready-to-use formula covers 175-225 sq ft per gallon with simple spray-on use
MAINTENANCE MADE SIMPLE - No surface film to maintain—just reapply 1-2 coats when needed
INVISIBLE SHIELD MAXIMUM DEFENSE - Protects concrete & stone without altering appearance

Foundation Armor SX5000 WB is a professional-grade, water-based silane-siloxane sealer that reduces water absorption by up to 95%, providing invisible, long-lasting protection for concrete, brick, stone, and masonry surfaces. Its odorless, zero-VOC formula ensures easy application and maintenance, delivering up to 7-10 years of durable defense against water damage, cracking, and staining without altering the surface’s natural look.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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Material	Resin, Silicone
Brand	Foundation Armor
Style	Compact
Item Weight	9 Pounds
Item dimensions L x W x H	8 x 8 x 12 inches
Compatible Material	Concrete, Stone, Masonry, Brick, Pavers, Stucco
Water Resistance Level	Water Repellent
Item Form	Liquid
UPC	856994005138
Color	Clear
Surface Recommendation	Concrete
Manufacturer	Foundatio Armor
Part Number	SX5000WB1GAL
Item Weight	9 pounds
Product Dimensions	8 x 8 x 12 inches
Country of Origin	USA
Item model number	OE-Y5L3-OSV2F
Is Discontinued By Manufacturer	No
Size	1 Gallon
Pattern	Solid
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

Armor SX5000 WB Water-Based Silane-Siloxane Sealer for Concrete, Brick, Pavers, Stone - Matte Concrete Sealer - 1 Gallon

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