Concrete color

PolyScale has a concrete color and I believe a weather concrete.

I would use the concrete color.

Woodland Scenics also has a concrete top coat which I have used as regular paint.

There is nothing like a light dusting of good ol' Rustoleum Desert Bisque over gray craft paint. I make the gray by mixing black and white.  That way you can control the "age" of the concrete. Whiter for "new" concrete, darker for "old". 

Andy

Poly scale is easy to brush apply.

You can check the both concrete and aged concrete color

 here --->  http://www.testors.com/categor...67/Railroad_Acrylics

Like Pete said, concrete really isn't a single color. IMO it looks best with some variation in shades of gray and tan colors. Dipping a brush alternately in white, tan, and a little black, and mixing right on the surface gives a good varied effect that's easy to control and adjust as you go along.

You can also sprinkle a little very fine white sand on the wet paint for a little texture.

Jim

Since you are not using a rattle can, ignore this...but I use an almond color and

a cheap primer gray, sprays, from Walmart now, as Home Depot and Lowe's seem

to have gone to more expensive spray paints and a brand I don't like..to get

different effects, I may put the gray on first, or the almond, and, like some of the

excellent photos on here, pass over it in areas with of "rusty primer", sprayed.  I

would not hesitate to vary that with a different "cream", "tan", or darker gray, if used

lightly.

Some concrete out here takes on a yellowish color from the smog and dust. I use a medium gray sandable primer as a base (also hides the wood grain), then a grey/beige concrete textured paint, then cover that with a color called "strawflower." I follow that with a long-distance dusting of dark gray primer to weather/dull the color a bit.

This ground piece was coated with sheet rock and then painted with Badger Concrete Gray.  I brushed it on then applied a black wash.