This was a fun project. After seeing a similar model built by my friend Anthony Hardy, I knew I wanted to build one for myself. This started as a Bowser pre-weathered model of an L&N 3 bay 100 ton hopper. While I'm not a fan of pre-weathered models, this one was cheap so I made it work. Since I was going to patch this for CSX, I started by weathering the model with Pan Pastels to a well worn look. Observing photos in the early CSX era, many of these orange hoppers were mostly black from coal dust, grime, etc. The inside was painted with Rust-oleum Camouflage, the couplers were touched up with Vallejo flat earth. To paint the trucks, I used Vallejo gray, the wheels were painted with a combination of gray and earth. Once dry, I dusted on dark brown Pan Pastels to blend everything.
To make the patch I masked off the panels to be painted black. In hindsight, this was not the best way to do this as it took quite a while to mask everything off. After speaking with Anthony, he told me he used Microscale Black Trim Film. Well Duh...I wished I had thought of that.
Once the patch was painted, I sprayed on a gloss coat of Pledge Floor Gloss. While I've never tried this approach, I must say I'm pleased with the results. You can spray without thinning, although it can be thinned with distilled water and it's a lifetime supply from one bottle. Once dry, I added decals from a Microscale set, brushed on Solve set, then I sealed everything with a spray can of Tamiya Flat Clear.