A quick and simple method to get rid of the plastic new freight car look is to spray a light coat of Dullcoat.  This will take away the 'toy' train look of your layout.  If you don't have any Testor's Dullcoat you can use any Matte Finish spray to get the same results.  Just a simple spray to each side and let dry.  This can be done to any plastic kits also.

Hopper Weathering Clinic
By Bill Mock
December 2009

Here is the first stages of weathering of my new BN [ ... ]

Under $15 Turntable

By Jim O’Connell

May 2008

Most important is the 64oz Big Gulp cup. Next is the little plastic 'stay fresh' can top. I recommend [ ... ]

Hopper Weathering Clinic II
By Bill Mock
December 2009

So here's how those BN Hoppers turned out after the surface rust dried. Not bad. I'll [ ... ]