06-01-2014, 07:55 AM
I use an airbrush for painting and weathering buildings and rolling stock.
I apply a coat of Dull-Kote first and allow it to dry at least 8 hrs. This gives the paint something to "grab" onto other than a slick plastic surface. I then apply whatever color the brick is going to be, usually a dark reddish coat and allow that to dry thoroughly and then seal it with DK. Next I apply a coat of mortar color (light gray) with a brush, and immediately wipe off the brick faces with a slightly damp rag (I use water-soluble paint for the mortar) using diagonal strokes which minimizes the possibility of removing the paint in the mortar joints. I allow at least 12 hrs. for the mortar lines to dry, and then apply a final coat of DK to seal everything in.
It's time consuming, but gives excellent results.
Hope this helps...
I apply a coat of Dull-Kote first and allow it to dry at least 8 hrs. This gives the paint something to "grab" onto other than a slick plastic surface. I then apply whatever color the brick is going to be, usually a dark reddish coat and allow that to dry thoroughly and then seal it with DK. Next I apply a coat of mortar color (light gray) with a brush, and immediately wipe off the brick faces with a slightly damp rag (I use water-soluble paint for the mortar) using diagonal strokes which minimizes the possibility of removing the paint in the mortar joints. I allow at least 12 hrs. for the mortar lines to dry, and then apply a final coat of DK to seal everything in.
It's time consuming, but gives excellent results.
Hope this helps...
Gus (LC&P).