This Red Devil sealant is loaded with sand-sized grains that make the product (once set) greatly resemble mortar, although it still has the yielding, rubbery texture of caulking. At cleanup time, the loose material on my gloves made it look like I had wiped out a tray of mortar. I used one tube to fill and reinforce an area of missing mortar between two pieces of brick veneer without having to deal with real mortar, and the remainder to close a narrow gap between a concrete step and concrete foundation.

As others have noted, this caulking keeps flowing during use (even if I release the pressure on the caulk gun, even with a half-empty tube). The graininess makes it feel messier, but it handles like normal caulking products (including being a pain to clean off brick). I'll update if the product weathers unexpectedly.

For my purposes, it worked very well. Recommended.

Works great used to seal my storage building

Nice color. seems to be holding well..

The Red Devil Concrete and Masonry Caulk is the Best Masonry Caulk I have found on the market.
I have used others, from other name brand concrete products, that are also Acrylic, and found them to be awful after it rains!!!
Yes, after it rains, the other brands get wet and run, the rain water seems to re hydrate the other manufacturers brands and never seem to ever cure.
And, yes all of the other Acrylic caulking from the Home Improvement stores.
I have found that this Red Devil product Does a Fantastic job curing, doesn't come loose, and doesn't shrink.
You can also paint on top of this product.

Worked well to fill in some morter separations in my brick wall in my house