Hank Murrow on wed 25 feb 04
Dear Marilu;
For your larger batches you might check out dairy scales, which hang
from overhead, have adjustable tare weight, and most
important......read in tenths of pounds to either 30 or 60 pounds. This
allows one to measure directly from a recipe, and avoiding the
pounds/ounces conundrum. Did I mention that they are cheap?
Cheers, Hank
On Feb 25, 2004, at 3:49 PM, Marilu wrote:
> Hello, I am just starting into mixing my own glazes and I probably
> will be
> making 5 to 10 gallon batches along with smaller test batches. I am not
> familair with how many pounds/grams of chemicals are used in these size
> batches. I know I need a scale accurate to .1 gram but I am unsure
> what to
> look for in terms of weight capacity? I want to use a digital scale. If
> anyone could share some info on them and what weight size I will neeed
> I'd
> really appreciate it. -Thanks Marilu
Marilu on wed 25 feb 04
Hello, I am just starting into mixing my own glazes and I probably will be
making 5 to 10 gallon batches along with smaller test batches. I am not
familair with how many pounds/grams of chemicals are used in these size
batches. I know I need a scale accurate to .1 gram but I am unsure what to
look for in terms of weight capacity? I want to use a digital scale. If
anyone could share some info on them and what weight size I will neeed I'd
really appreciate it. -Thanks Marilu
Don Goodrich on thu 26 feb 04
Hi Marilu,
You'll be mixing glaze batches in the kilogram range if you're going for
5-gallon buckets. If you're getting a digital scale, be sure to get one
that has tare capability, so you can easily subtract the weight of your
weighing pan. There are always lots of digital scales available on Ebay.
This one would be a good example of one that should meet your needs:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2597988930&category=11814
Good luck,
Don Goodrich
goodrichdn@aol.com
http://dongoodrichpottery.com/
Pamela Watkins on thu 26 feb 04
Hi Marilu,
You may want to also price a triple beam balance and compare to the digital. I use an Ohaus, and I consider it is as easy and accurate as the digital - from small test batches, such as yours to 3000 gram and up batches that I mix. For the larger batches, with the triple beam, you simply divide out in increments of a thousand and then on to the lesser quantity amounts. Your pottery supplier should carry both digital and triple beam suitable for your needs. Check Bailey's online, or Daven's. Both are pricey, but a good scale is worth the investment. Good Luck!
Peace,
Pamela
~jaq
Marilu wrote:
Hello, I am just starting into mixing my own glazes and I probably will be
making 5 to 10 gallon batches along with smaller test batches. I am not
familair with how many pounds/grams of chemicals are used in these size
batches. I know I need a scale accurate to .1 gram but I am unsure what to
look for in terms of weight capacity? I want to use a digital scale. If
anyone could share some info on them and what weight size I will neeed I'd
really appreciate it. -Thanks Marilu
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Dave Finkelnburg on thu 26 feb 04
Marilu,
A 10-kilogram batch (about 22 pounds) is about the most you will put in
a 5-gallon bucket. That will fill the bucket about 2/3-full.
You'll use approximately between .8 and 1.2 times as much water by
weight as the weight of the dry clay ingredients. You'll use more water
with high clay recipes, less water with high frit recipes. A pound of glaze
ingredients has roughly only about 40% of the volume of a pound of water
water. So if you put a 10 kg batch in that bucket, and use 10 kg of water,
you'll have about 14-liters (3.7 gallons) of glaze slurry.
Setting up my studio I had the same question you do. I settled for a
small, highly accurate digital scale that weighs up to about 450 grams, and
is accurate to a tenth of a gram. I only use that for test batches, and
weighing colorants. I also bought a large scale that handles 10 kilograms,
but is accurate only to the nearest 5 grams.
Good glazing!
Dave Finkelnburg
----- Original Message -----
From: "Marilu"
Sent: Wednesday, February 25, 2004 4:49 PM
> Hello, I am just starting into mixing my own glazes and I probably will
be
> making 5 to 10 gallon batches along with smaller test batches. I am not
> familair with how many pounds/grams of chemicals are used in these size
> batches. I know I need a scale accurate to .1 gram but I am unsure what to
> look for in terms of weight capacity? I want to use a digital scale. If
> anyone could share some info on them and what weight size I will neeed I'd
> really appreciate it. -Thanks Marilu
Ellie Blair on thu 26 feb 04
Hi Marilu,
I use a digital Ohaus scale. I love it. I only make my glaze batches =
in 100 gram lots and it is perfect for it. They have several different =
sizes depending on your needs.
Hope this helps
Ellie Blair
----- Original Message -----=20
From: Don Goodrich=20
To: CLAYART@LSV.CERAMICS.ORG=20
Sent: Wednesday, February 25, 2004 11:58 PM
Subject: Re: new to glazing-need info for scale size
Hi Marilu,
You'll be mixing glaze batches in the kilogram range if you're =
going for
5-gallon buckets. If you're getting a digital scale, be sure to get =
one
that has tare capability, so you can easily subtract the weight of =
your
weighing pan. There are always lots of digital scales available on =
Ebay.
This one would be a good example of one that should meet your needs:
=
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3D2597988930&category=3D=
11814
Good luck,
Don Goodrich
goodrichdn@aol.com
http://dongoodrichpottery.com/
=
_________________________________________________________________________=
_____
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/
Moderator of the list is Mel Jacobson who may be reached at =
melpots@pclink.com.
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