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cookson, ok
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Kenmore, WA
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interior walls plaster?
[#2] Posted: 07/22/2010 - 1:58:35 PM |  |  |
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Interior Portland cement stucco.
ONE TEAM - ONE FIGHT!!!
Mike
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Evergreen Park (Chicago), IL
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interior walls plaster?
[#3] Posted: 07/22/2010 - 2:53:22 PM | | |
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That looks pretty much like plaster on metal lath to me. What's the tip off that it is stucco?
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Mike Lamb
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Chicago, IL
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 interior walls plaster?
[#4] Posted: 07/22/2010 - 3:32:48 PM | | |
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I guess you could call it stucco if you want.
I thinks it's standard metal lath plaster. Portland scratch coat on the metal lath, gauging plaster on the scratch.
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Kurt in Chicago
"If I smell it, it goes in the report".............Phillip Smith...2012
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cookson, ok
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interior walls plaster?
[#5] Posted: 07/22/2010 - 4:44:38 PM | | |
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I appreciate your replies. Thanks to your timely help as always.
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Victoria, British Columbia
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Lafayette, Louisiana
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interior walls plaster?
[#7] Posted: 07/22/2010 - 6:29:57 PM | | |
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Quote: Originally posted by John KogelQuote: Originally posted by kimball gray
house built in the 50's. the owner says the walls are cement. they look like cement.
Cement is the main ingredient, but the product is plaster or stucco. Add gravel, it becomes concrete. That's how I keep the terms straight, anyways.
I thought 'plaster' meant gypsum. Stucco is cementitious unless it's polymer based.
Marc
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Kenmore, WA
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Victoria, British Columbia
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interior walls plaster?
[#9] Posted: 07/22/2010 - 9:47:07 PM | | |
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Most old plaster I see from the back side, the brown coat, has a grey look, but they added a sand filler to it.
AFAIK, plaster can be gypsum, cement or lime based, it's all plaster.
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I'm no expert, but I gather Portland refers to a cement base.
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Chicago, IL
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interior walls plaster?
[#11] Posted: 07/23/2010 - 06:55:53 AM | | |
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Plaster's just a general term. It can be gypsum, lime based, or portland cement.
"Plaster of Paris" is derived from the ancient gypsum deposit in Montmartre. It's still just gypsum plaster, although I like the idea of plaster from Paris.
Lime plaster has problems, mainly that the material has to be kept in sealed containers and protected from air, or it sets up (exposure to C02 causes the calcium hydroxide to turn into calcium carbonate). Then, there's all the logistical hassles of slaking, etc. It's very time consuming.
Gypsum is pretty easy stuff. That's why it's popular. That's my opinion, anyway.
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Kurt in Chicago
"If I smell it, it goes in the report".............Phillip Smith...2012
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