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 Help! Hydrocal stone walls
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New Hire

Posted - 01/28/2012 :  11:06:55 PM  Show Profile  Visit Onewolf's Homepage  Reply with Quote
I am a hydrocal newbie (actually pretty much structure building newbie) and I am working on a Thomas A York kit "Duquesne Manufacturing". It has a small 'powerhouse/steam' out-building that has stone walls. I am not happy with how the stone walls appear. They are just too.... nice? Maybe I should not have primed the casting before staining/painting? Any advice to get the stone walls looking "not so pretty"?. I have tred darks washes and black/gray chalk, but the walls still look too nice. Here it is:

Current Layout Construction Photo Album - http://www.onewolf.org/Album/LayoutConstruction/index.html

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Posted - 01/28/2012 :  11:28:18 PM  Show Profile  Reply with Quote
Maybe this thread will help you some. See page #2 NickO http://www.railroad-line.com/forum/topic.asp?TOPIC_ID=5822&whichpage=1
Also, here is one other you might like; http://www.railroad-line.com/forum/topic.asp?TOPIC_ID=31463

Pacific Northwest Logging in the East Coast
Post count: 5000 posts added to below count.

Edited by - desertdrover on 01/28/2012 11:38:25 PM

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Posted - 01/29/2012 :  01:00:38 AM  Show Profile  Visit UKGuy's Homepage  Send UKGuy a Yahoo! Message  Reply with Quote
Try using chalks over the stones to get the effects/colours you want. Not the weathering pigments as they have a fixative but chalk/pastel sticks such as rembrandt or grumbacher.


Edited by - UKGuy on 01/29/2012 01:12:21 AM

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Premium Member

Posted - 01/29/2012 :  01:11:38 AM  Show Profile  Reply with Quote
Actually, I think the stonework looks great. It's the mortar wash that looks a little too regular with an even black color. And I agree with Karl A about using chalks as your next step; try using some lighter earth tone shades. Don't forget to work some muddy colors at the very bottom of the structure to represent mud, etc, that gets splashed up by the rain, and some red/rust colors that have dripped/stained down from the rusty beam.


Modeling 1890s (because the voices in my head told me to)

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Premium Member

Posted - 01/29/2012 :  01:49:50 AM  Show Profile  Reply with Quote
I think the walls look pretty good as they are.
Only plaster stone walls I've done I didn't seal the plaster and used thin washes of enamel paints.
Then used a dark thinned enamel for the mortar and then tied it all together with some weathering powder.
This is what it looks like:

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Mike Hamer

Posted - 01/29/2012 :  02:19:47 AM  Show Profile  Visit Mike Hamer's Homepage  Reply with Quote
I really like the look as well. You could try a wash with acrylic black and water and use a brush lightly on just the stones. Another idea is to combine some chalks or powders (whichever you have on hand) with mineral spirits or added with your dark water wash. I'd do a practice section on the side of the building you won't see as much, if there is one. Hope this helps.

Mike Hamer
Ottawa, Ontario, Canada

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Posted - 01/29/2012 :  04:41:39 AM  Show Profile  Reply with Quote
Check out this website . They do some of the best looking stonewalls around .https://nebrownstone.com/index.htm

Their stone painting tutorial might be of help ,


Edited by - NickO on 01/29/2012 04:43:22 AM

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Crew Chief

Posted - 01/29/2012 :  07:05:32 AM  Show Profile  Reply with Quote
Definitely check out Russ Greene's website at New England Brownstone. I attended his premium clinic at CSC last Novemeber. Great guy, masterful product, and good tutorials. For what it's worth, if you're a newbie and THAT's your first attempt at stonework, I'd say you need to turn in your newbie card. It looks great! With the finishing suggestions posted here it'll be fantastic. Be sure to post your final results!
Dave K.

"Promote what you love instead of bashing what you hate."

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Posted - 01/29/2012 :  08:52:19 AM  Show Profile  Visit dougcoffey1950's Homepage  Send dougcoffey1950 a Yahoo! Message  Reply with Quote
I think you did a pretty good job but I agree, the wall looks too nice. The photo Rick shows us is perhaps the best I have seen. I just built a similar wall using real stones and it looks so much like Rick's, I find it hard to believe his is a casting.
Anyway.....back to your wall. I think it needs more texture. The method I use would require complete repainting. I use fine crusher dust (dirt) mixed with thinned white glue as my base coat. It seals the plaster and adds texture that takes paint well and drys to look like real stone rather than something popped out of a mold.
I hope the chalks work for you. Repainting would be a no fun deal.


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Posted - 01/29/2012 :  08:59:48 AM  Show Profile  Visit simon1966's Homepage  Reply with Quote
Rick, did you do the Premium Clinc at CSS in 07 as well? It was one of the best IMO and the casting is superb.

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Posted - 01/29/2012 :  09:21:04 AM  Show Profile  Reply with Quote
The reason Rick's stone wall looks so great is that it has had 5 years to weather.
Like Doug said, it is one of the best I've seen.

I think Karl's suggestion of chalks will make your already good wall look old and used.

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Premium Member

Posted - 01/30/2012 :  08:37:44 AM  Show Profile  Reply with Quote
Thanks for the kind words Doug and Simon.

Simon, I've never done a clinic but I did use a method taught to me by a master clinician, Brian Nolan.

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