I need a black material that is waterproof that attaches to your garage foundations
And it creates a waterproof seal. I've been hunting for days on this any help would be excellent.

Don't know your location, but you need "Foundation Coating". Big Box stores has it as well as hardware stores and masonry supply stores

This is normally applied over masonry parging/smooth stucco Look at the roofing supplies in the big box stores and that's usually where its kept in 5 gallon buckets and 1 gallon.

Ace - Hardware: Garage, Driveway, Roofing & Siding: Roof / Foundation Coatings: Ace Non-Fibered Foundation Coating

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Hi, askmedoug!

Since your question has more to do with something having to do with exterior home improvement, I've moved it from Small Business to this, more appropriate forum topic area.

Thanks!