View single post by Ray Dunakin
 Posted: Mon Jul 30th, 2018 04:16 am
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Ray Dunakin


Joined: Wed Jul 25th, 2012
Location: San Diego
Posts: 1251
Getting near the end on this one...

After painting the exterior with Rustoleum's "Cold Galvanizing Compound", I went to work on the weathering. I've noticed that even galvanized metal can become rusted and/or discolored when exposed to the minerals and chemicals that are often found in and around mines, so that's what I wanted here. I used a two-part process to create real rust. This is sold under the brand name Sophisticated Finishes. Part one is an acrylic paint filled with iron powder. Part two is a chemical solution that rusts the iron.

Applying this effect to only parts of the structure, and in varying degrees, is a bit tricky. And the zinc in the galvanizing compound seems to inhibit it, which adds to the trickiness. I had to brush the iron paint on, applying a thick coat in some places and thinner in others. Then apply the rust solution. A lot of trial and error was involved, and additional applications of both the iron paint and the rust solution were needed. Here's how it looked partway through the process:

And here's the finished weathering. Time and exposure to real weather will improve it, turning the rust to a more natural coloration:

I added a rain gutter over the door to the blacksmith's shop, and also added a wooden lamp post and exterior lights:

I still need to cement the concrete steps in place, and build up the "soil" around the base of the building.

For the interior of the powerhouse, I painted the ceiling black between the rafters, and drilled holes where the lights will be:

The industrial-style lampshades are from Plastruct. I drilled them out to fit 3mm LEDs, which will be inserted from the top. Then I glued them to the ceiling:

The diesel generator is still unfinished, but was installed temporarily for these photos. I also added lights to the assay office, on the level below the powerhouse:

Meanwhile... the fence along the east side of our yard was replaced recently with a nice, new vinyl fence. But removal of the old fence left one corner of the pathway at the bottom of the railroad unsupported. So I had to dig out a lot of gravel and soil, and build up a small retaining wall of concrete blocks and concrete. Here it is in progress. I still need to dig soil out from under the corner of the step at the bottom of the stairs, and back-fill it with concrete:

That's all for now. Enjoy!

Visit to see photos of the rugged and rocky In-ko-pah Railroad!
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