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 SRMW's kit No. 240 HO Car Shop - Diesel Shop Build
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Author Previous Topic: River Dam Model kits - Assembly and review Topic Next Topic: Choices Challenge: B&O Tower Kit
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Premium Member

Posted - 02/18/2021 :  08:49:20 AM  Show Profile  Reply with Quote
I appreciate the step-by-step photos, Greg. Nice work so far.


Country: USA | Posts: 33524 Go to Top of Page

Michael Hohn

Posted - 02/18/2021 :  09:09:17 AM  Show Profile  Visit Michael Hohn's Homepage  Reply with Quote

Those are beautiful castings. They certainly deserve the care you are using.

Lots of useful information already.


Country: USA | Posts: 7486 Go to Top of Page


Posted - 02/18/2021 :  09:14:37 AM  Show Profile  Reply with Quote
Thanks for your posts! Robert, Bob, George, Bruce & Mike.

Robert, the weird thing for me about having doors cast right into the Hydrocal walls, is you don't see any trace of those same doors on the interior of those walls.
Not certain how this kit deals with that detail yet.

Glad you guys are enjoying the step by step approach that I take in my builds.


Edited by - Ensign on 02/18/2021 09:15:15 AM

Country: Canada | Posts: 9161 Go to Top of Page


Posted - 02/20/2021 :  10:08:58 AM  Show Profile  Reply with Quote
Hi everyone, well I have a few new things that I have managed to get done in this build.
One of the next steps is to seal the Hydrocal wall castings, fronts, backs & even the sides of some of the castings.
I have built many Hydrocal structures, and I normally seal the hydrocal after I have glued the walls of the structure together.
That way you get clean Hydrocal on Hydrocal contact with the glue.
This kit's instructions don't tell us to do that, so by sealing & painting the walls sections first, you will end having joints glued to painted surfaces instead.
So I decided to assemble & glue up the walls that I could before sealing them.
The machine shop can be placed on either side of the main shop, so it's really up to you on which side you decide to use it on.
I'm building my shop just like the photos show with the machine shop on the right side.
So the machine shop D2 wall has overhangs on the top that will need to be sanded down flat on the upper left side.

So that this corner joint will end up looking like this one shown below.

I use CA glue to attach all of my Hydrocal castings together, you must not use to much or it will ooze all out of the joint and you don't want that to happen.
Here's how my machine shop looked after gluing the wall for it together.

These were the only walls that I could assemble before sealing the walls with flat white primer.
I began with the backsides of the walls, just a few thin coats at a time, using a shaker spray can.
Hydrocal is very porous so it absorbs paint this is why you need to seal the castings
before final painting of them.
You don't want to add so much primer sealer that you start to lose fine detail like the mortar joints in these wall castings.
It's good to start with the backsides to get a feel of how much primer/sealer will be needed to give these castings a seal.

Then I flipped them over and did the fronts.

While those were drying I cut all of the windows from their carriers, and glued the 2 piece windows with the arched tops that I needed together.

I then take some painters tape ( It doesn't have to be painters tape you can use plain old masking tape.)
and fold it over on itself making a flat tube of tape, I then stick my window castings upright onto the tape.

Since most of these windows will be seen from
both sides you will need to paint both sides of these window castings.
I painted mine all flat black.

That's all I have for now!


Edited by - Ensign on 02/21/2021 12:20:12 AM

Country: Canada | Posts: 9161 Go to Top of Page


Posted - 02/20/2021 :  2:05:59 PM  Show Profile  Send mark_dalrymple an AOL message  Reply with Quote
Looking good, Greg.

I think I would have been too scared to use CA gluing this together. So little working time. I use CA a lot, but always use two part epoxy for this sort of thing.

Cheers, Mark.

Country: New Zealand | Posts: 1280 Go to Top of Page


Posted - 02/20/2021 :  3:09:53 PM  Show Profile  Reply with Quote
Greg great start on a great looking kit.

Mike Mace
Northern Division of the Santa Fe

Country: USA | Posts: 1903 Go to Top of Page

Bill Gill

Posted - 02/20/2021 :  4:19:15 PM  Show Profile  Reply with Quote
A nice crisp start, Greg. Do you use a thicker CA for plaster?

Country: USA | Posts: 3292 Go to Top of Page


Premium Member

Posted - 02/20/2021 :  5:00:58 PM  Show Profile  Send Guff an AOL message  Reply with Quote
Great instructions! I never worked with plaster castings but your steps would make it less scary should I ever attempt it.

David Guffey

Country: USA | Posts: 2144 Go to Top of Page


Posted - 02/21/2021 :  12:37:30 AM  Show Profile  Reply with Quote
Mark, Mike, Bill & Dave, thanks for your posts!

Mark, I have in the past just used 5 minute epoxy for gluing hydrocal castings together, however I did not have any this time around.
So I used the CA with great results.
I test fit all of my castings first to make sure that there are no problems with the joint, before finally gluing up.

Mike, this is a beautiful looking structure.

Bill, I used medium thickness CA for this.

Dave, you should really give it a try, you would love it!


Country: Canada | Posts: 9161 Go to Top of Page

robert goslin

Premium Member

Posted - 02/21/2021 :  12:47:57 AM  Show Profile  Reply with Quote
Nice progress Greg. I guess prepping Hydrocal walls is lot more involved than our usual wood or plastic one. But the results will be great.
Excellent fit.
And that sure is a lot of windows.

Regards Rob

My current build.

Edited by - robert goslin on 02/21/2021 12:48:44 AM

Country: Australia | Posts: 2953 Go to Top of Page


Premium Member

Posted - 02/21/2021 :  08:25:12 AM  Show Profile  Reply with Quote
Thanks for the excellent Step-by-Step, Greg.


Country: USA | Posts: 33524 Go to Top of Page


Premium Member

Posted - 02/21/2021 :  08:30:37 AM  Show Profile  Reply with Quote
Morning Greg

Nice precise work on those walls.

Your usual good tutorial to go along with it.


"And in the end, it's not the years in your life that count. It's the life in your years." A. Lincoln

Country: USA | Posts: 13390 Go to Top of Page


Posted - 02/21/2021 :  09:34:39 AM  Show Profile  Reply with Quote
Rob, Bruce & Jerry, thanks for your comments!

Rob, this car shop does indeed have a lot of windows.

Bruce & Jerry, glad your enjoying the step by step process.


Country: Canada | Posts: 9161 Go to Top of Page


Premium Member

Posted - 02/21/2021 :  10:09:37 AM  Show Profile  Reply with Quote
Good stuff as are all your builds.



Country: USA | Posts: 4308 Go to Top of Page

Engine Wiper

Posted - 02/21/2021 :  11:20:04 AM  Show Profile  Reply with Quote
Greg, why did you seal the other plaster castings before glueing, unlike what you did with the machine shop?

A Maine Expatriate living in the valley of Northern California - Modeling in HO.
David Stickney

Country: USA | Posts: 494 Go to Top of Page
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