What is Spanish Whiting? Where Can I get it?
David Hoopes
Hello,
What is Spanish Whiting? I am trying to create some Milk paint for some
restoration work that I am doing. The recipe calls for Spanish Whiting,
and I havn't figured out what it is.
Thanks in advance.
--
David Hoopes Exabyte Corp.
da...@tallgrass.COM 11100 W 82nd St.
Voice: (913) 492-6002 x3323 Lenexa, Ks 66214
Michael D. Sullivan
> What is Spanish Whiting? I am trying to create some Milk paint for some
>restoration work that I am doing. The recipe calls for Spanish Whiting,
>and I havn't figured out what it is.
It is either unslaked lime or plaster of paris. The newer milk paint
recipes I have seen call for one or both of these.
--
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Steve Cobb
|> Probably is powdered calcium carbonate. Can't think of a good source at
|> present. Will advise if I come across one.
|>
|> Tom Brown
I don't want to spread disinformation, since I don't have any
reference here, but I believe that one discussion I read says
that plaster of paris can be substituted.
Sfc
Tb01
paul milligan
'distressed, antique' smell. Also not bad on a bagel.
Don Berry
Cobb) wrote:
> In article <3lqihe$o...@newsbf02.news.aol.com>, tb...@aol.com (Tb01) writes:
> I don't want to spread disinformation, since I don't have any
> reference here, but I believe that one discussion I read says
> that plaster of paris can be substituted.
>
> Sfc
Powdered calcium carbonate is the main ingredient in various kinds
of chalks, and my Merck Index also says that in a pure form as a pigment
it's known as "English White", "Paris White", and "whiting". Calcium
carbonate is also the major component of limestone (impure) and Tums
antacid (somewhat more pure, I hope.) You can probably find powdered
limestone / calcium carbonate at a garden supply store or old-style
pharmacy (apothecary!). _Don't_ substitute lime (calcium oxide) which
is much, much more alkaline.
On the other hand, Plaster of Paris is really calcium sulfate hemihydrate.
Although it's also a very white powder, I don't know if it's easily used
for whiting, since it sets up rapidly with water. Could be, though.
-Don
--
be...@a.chem.upenn.edu
Craig1708
fact that is what Spanish Whiting is. Essentially chalk.
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Craig Deller
The Deller Conservation Group Ltd
Geneva, Illinois
USA
crai...@aol.com "Conservators make it last longer"
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"robert_h._galloway_(sgrd-udr-o)"
I guess I lost track of the original request. Was whiting to be used for
polishing or for whitewash or something else?
rhg
Thomas Gauldin
>Probably is powdered calcium carbonate. Can't think of a good source at
>present. Will advise if I come across one.
>
>Tom Brown
Tom- I'm going to go out on a limb and risk taking QUITE a few jokes and
jabs to my "recipe." Many years ago, my Dad bought an old stucco house in
Marshall, MO. The first floor of the house was Antebellum, with the second
floor added at the turn of the century, when the stucco was applied. While
in fairly good shape, you can imagine the blackened color.
Dad sought the advice of a fellow who was a chemist for Cook Paint and
Varnish at the time, who told him that he should make his own paint. Here's
the sequence and ingredients:
The house was first washed to remove loose grime. It was then painted with
two coats of white Portland Cement, applied as a slurry. The Portland
Cement cured out to a yellowish-white color.
The third step was to make up a "whiting." This is where it gets strange.
In a large tub, empty in a 50# bag of unslaked lime. Using a paring knife,
cut/shred 10# of paraffin and a dozen bananas (no peels). Add water to
create a slurry, while stirring. The mixture will promptly come to a boil.
When cool enough to handle, cover with a cloth and let stand for 2-3 weeks
minimum. Add water, if necessary, but do not stir.
When cured out, stir well and add sufficient water to create a stiff slurry
and apply it with a brush- 2 coats is usually sufficient.
Any remaining whiting can be kept indefinitely by letting it settle and then
adding sufficient water to completely cover the sediment.
The whiting will first appear to have a yellowish cast, but this will
bleach out to pure white in a week or so. The whiting on Dad's house would
last for about 8-10 years before needing another coat. It would have a bit
of a chalky feel, but erosion by rain would refresh the surface. It would
be pure white as it aged- not yellowing.
--
Thomas A. Gauldin Here's to the land of the longleaf pine,
Raleigh, NC The summerland where the sun doth shine,
BSRB45A on Prodigy Where the weak grow strong and the strong grow great,
FAX (919) 676-1404 Here's to Downhome, the Old North State.
"robert_h._galloway_(sgrd-udr-o)"
>|> present. Will advise if I come across one.
>|>
>|> Tom Brown
>
>reference here, but I believe that one discussion I read says
>that plaster of paris can be substituted.
>
>Sfc
Whiting is pure calcium carbonate. I remember many years ago using a slurry of
whiting on a rag wheel to polish metals, polymethyl methacrylate etc. It
doesn't produce quite as high a gloss as tin oxide or rouge. I would think if
used with water, the setting of the plaster of paris would be a problem. I
wouldn't be surprised if you could find it at a company selling jewelry making
supplies.
rhg
Mark Nevar
Calcium Carbonate is sold through Homebrewing Supply stores. It is used there
to raise the pH of a grain mash. Most HB stores sell it in small ounce bags.
Better stores and most mail order suppliers also offer 1 lb bags. I bought
a 1 lb bag 7 years ago and hardly tough it. Most brewers need help in LOWERING
mash pH, not raising it. Check the local yellow pages under Beer Making Supplies
or Wine Making Supplies.
Wow, two hobbies cross paths. It must be a sign.
Mark Nevar
Walter Barry
>Whiting is pure calcium carbonate. I remember many years ago using a slurry of
>whiting on a rag wheel to polish metals, polymethyl methacrylate etc. It
>doesn't produce quite as high a gloss as tin oxide or rouge.
Dilco recommends using it with a flannel cloth to remove traces of one
polishing compound when moving up to a finer compound on a different wheel.
Powdered chalk is common in hardware stores & used for snap-lines.
Use a little with an old T-shirt to remove all of the cutting compound before
switching to another wheel for coloring.
For the best finish, you want to buy a different buffing wheel for each
different compound that you are using. Match the appropriate type of wheel
with the compound you intend to use. Believe me, if you have a lot of brass
to clean up, when used as directed, the results are excellent.
Walter
schllo...@technet.nm.org
Here in New Mexico where whiting is quite common; its plain old lime( caco3)
calcium carbonate. Make a paste slap it on, when dry it leaves a white
apprearance.
In article <D6KtK...@nntpa.cb.att.com>, m...@cartoon.cartoon (Mark Nevar) writes:
>In article <WOODWORK%9504050...@ipfwvm.bitnet>,
>Robert H. Galloway (SGRD-UDR-O) <gall...@WASHNGTN-AMEDD.ARMY.MIL> wrote:
>>>
>>>In article <3lqihe$o...@newsbf02.news.aol.com>, tb...@aol.com (Tb01) writes:
>>>|> Probably is powdered calcium carbonate. Can't think of a good source at
>>>|> present. Will advise if I come across one.
>>>|>
>>>|> Tom Brown
>>>
>>>I don't want to spread disinformation, since I don't have any
>>>reference here, but I believe that one discussion I read says
>>>that plaster of paris can be substituted.
>>>
>>>Sfc
>>
>>Whiting is pure calcium carbonate. I remember many years ago using a slurry of
>>whiting on a rag wheel to polish metals, polymethyl methacrylate etc. It