Primed for Grime! Athearn’s Line of Semi-Weathered Freight Cars

You may have noticed a new logo appearing on the packaging for certain HO scale Athearn and Roundhouse products over the last couple of years. In this post, we’re taking a look into exactly what this brand-transcending “Primed for Grime” title means, and how it’s revolutionizing the custom weathering aspect of the hobby.  The Prototype …