Potters & Sculptors - Making Rock from Mud
Started this discussion. Last reply by Jacob Smith Jul 10, 2014. 21 Replies 0 Likes
My triple beam scales have cratered on me, so I'm in the market for some digital scales. I hope someone is using scales that they could recommend. The only brand I'm familiar with is Ohaus, so any…Continue
Good day,
I am RonaId Morris, I saw your profile and I decided to contact you immediately. Can you get back to me on my email (ronmorri01@gmail.com) for full details.
Regards.
Thank you Denice, I appreciate your time to make the comment!
You're right, Denice. MS seems to be a series of steps forward and steps back, but the suppression of the immune process seems to be getting better and more refined. They thought I might have MS when I first had my vision loss because it so commonly affects vision first. All of life though is one step forward and one step back. Keep on making things.
Thank you and no, your comments definately didn't upset me. I was asking for advice and you gave it, and the gallery that offered the advice about changing my work sold a couple of my pieces that went against the advice they gave me! I really think the whole thing comes down to making the work that I love, while I keep working at finding the audience who will love it. So much of it seems to be finding the person who really responds to my style. Can't believe the gallery owner you dealt with would shoot herself in the foot and lose a sale - you're better off not dealing with someone dumb enough to do that to herself and an artist she represents.
hi norm,
i have seen this websites but thanks again for showing me the exact things. the problem is i dont know the composition of frits which i use so i cannot compare. i will ask the dealer if he can give me the composition list. i have only one pdf about it which i am attaching here just have a look.Ceramic%20Frits%20for%20Studio%20Pottery%20Technical%20Data%20Sheet%20-%202.pdf
and about pricing of the material here lead bi-silicate frit costs me 4250 indian rupee = 71 US$ for 25 kg bag. i checked some other material price also like copper carbonate costs me 4.88 us $ per pound where on that website it is costing you 11.29 $per pound... so of course there is a huge difference in price. and i think it will be for all the materials. only problem here is to get material for studio pottery. we dont have websites like axner or big ceramicstore l where we can get studio pottery related materials and equipments. specially kilns and all we will have to get it made here on our own. thats why i am using gas kilns because its easier to build compare to electric ones..so thats the story...:) its not an easy job for ceramic artists to run the studio :)
-oza
Maulik - Digitalfire is one place to find frit equivalents.
This page shows the chemical make-up of Ferro Frit 3110 and at the bottom of this page it says Ferro Frit 3110 is comparable to GF-134, Pemco P1-VO4 etc. What brand frit supplier is common in your area?
http://digitalfire.com/4sight/material/ferro_frit_3110_349.html
http://digitalfire.com/4sight/material/frits.html
There are many other frit substitution websites with and without chemical analysis, such as this one;
http://www.ceramicstoday.com/frits.htm
http://www.bigceramicstore.com/info/ceramics/frit_comparisons.html
http://www.oocities.org/peter_stephens/FerroFrits.html
http://dir.indiamart.com/impcat/ceramic-glaze-frits.html
I'm curious what lead bisilicate frit costs you for a 25 Kilo bag. In fact I'm curious about your cost for most ceramic raw materials. This website gives a fairly good idea what American prices are, although you can often find cheaper prices on some of these materials.
http://www.axner.com/raw-materials.aspx
http://www.axner.com/ferro-frit-3110-lead-free-sold-per-lb.aspx
Increasingly many of our US vendors purchase manufactured raw materials from China.
As an example Alisa Clausen, a potter in Denmark uses many European equivalent frits, but some of the replacements include ingredients like barium which are not in American frits, such as the UK based Johnson Matthey MOK-623 frit. To replace MOK-623 I use the following:
MOK-623 - substitute
As you can see it's almost the same, except my substitute over-supplies Calcium Oxide
In most case my glazes made with this mixture closely resembles her glazes made with MOK-623
75.0% | Ferro Frit 3134 |
30.0% | Borax |
10.0% | Soda Ash |
5.8% | Zinc Oxide |
5.3% | Barium Carbonate or Strontium Carbonate |
-12.8% | Calcium Oxide |
hi denice,
we dont use lead but sometime we use lead bi silicate (LBS).. and its available here in india. if i talked about our work then frankly speaking we are just beginner in this field. we are bunch of architects who want to work with their hands rather than computers. we work with gas fired kilns and cone 6 glazes right now but interested in exploring many different techniques in this medium. i will surely try this recipe but only problem with this is the frit 3110.. we get frits here but with different names so i dont know which one to replace with. if you can help in that it will be good thing for me. otherwise all other materials seems familiar. i would love to see your work because we are mostly interested in large scale work which can be a part of architecture which we do. and also if you can share some recipes of claybody for large scale work( hand building and throwing) that will be good.
whatever murals we have done till now are on ready made bisque tiles. we get the tiles and then either spray glazes on them with stencils or we paint it like a normal oil paint paintings. and fire it at a low temperature.. these are very simple glazes made from 90 LBS and 10 china clay with different colorants and oxides. we are planning to do some handmade time murals i will keep you updated with it.. nice to take to you .
-oza
hey denice,
thank you very much for liking the work. i find it actually easy to post photos here on this site.. you just have to add photos from your comp and upload it.. i have never visited ceramic monthly forum.. i am finding this website pretty good to discuss work and some problems and many things.. about my raku kiln,,,, no i have not fired my new raku kiln yet i will be firing it soon.. still there is some mechanism has to be fixed for lifting the upper part.. And i will be more than happy to try out THE demuth's purple passion recipe :).. please forward it to me.... if you have any questions regarding our work please ask i will be glad to share my glaze recipes and any other things which we do.. :)
- oza
Electroplating directly onto ceramic painted with a conductive coating, or onto a conductive removable mandrell (electroforming) is pretty straight-forward. I've done things like this in college.
The downside is you need to use a concentrated bath of acid, like sulfuric acid, and you end up with a toxic soup of soluble metal contaminants in the acid. So it's not the sort of process we'd want to pursue in our outdoor studio.
Real estate developers using the site of a recently closed chrome plating business in West Hollywood are facing clean-up costs of $1.5 million for the soil under the building.
http://la.curbed.com/archives/2011/09/gehrydestroying_faith_plating_project_back_in_play_in_weho.php
A cleaner approach for a ceramic studio is PMC "gold clay", "silver clay", or "bronze clay". A moldable and toolable clay-like material which fires to a semi-precious metal. The same company sells metal etching and plating kits if you're not daunted.
http://www.metalclaysupply.com/PMC-Gold-Clay-p/52074.htm
http://www.metalclaysupply.com/Hadar-s-Clay-Smart-Bronze-50g-p/55386.htm
It's much like making your own ceramic gilding solution. It's easy enough if you have the right lab equipment - a Hydrogen Sulfide cylinder inside a fume hood (as the gas is poisonous), goggles, an emergency eye wash, gloves, scale, pH paper, glassware, tubing and stoppers.
You bubble the H2S gas through lavender oil until it turns red, or simply start with Turkey Red Oil (sulfated castor oil). Then mix this sulfonated oil thoroughly with three different metal acids:
1.) a precious metal like auric acid (gold(III) chloride), or platinum chloride;
2.) Bismuth Chloride as the bonding agent between the ceramic and the precious metal;
3.) Rhodium Chloride to cover the precious metal. Thin layers of Rhodium are clear and very hard, preventing wear of the gold or platinum.
Ingredients #1 and #3 are very expensive.
Titrate off the oil portion which is your luster to apply to ceramic at ^016. The metals are attached to the oil molecules via the sulfur. Both the oil and the sulfur burn-off in the kiln leaving the thin layer of Rhodium/Gold/Bismuth on the ceramic.
But you're also left with a toxic mess in the remaining water soluble liquid to dispose of, or even more waste liquid if you used sulfuric acid instead of hydrogen sulfide to sulfonate the oil.
You can alter the finished color of the fired gold or platinum gilding by adding very small quantities of chloride of Vanadium, Chromium or Cobalt.
Not having access to the lab set-up, I just buy a 2 gram vial of Duncan Bright Gold for $35.
Low cost flat lapping disc can be used on you potters wheel if you, drill bat pin holes in it, and provide a trickle of water to cool it. At amazon.com, 120 grit for aggressive material removal. Click the image to purchase
Members have had great things to say about John Britt's new book, Mid-Range Glazes. Click the image to buy from Amazon.com
Purchase Glazes Cone 6 by Michael Bailey, The Potters Book of Glaze Recipes by Emmanuel Cooper, or Making Marks by Robin Hopper, all available at amazon.com. Mastering Cone 6 Glazes by John Hesselberth & Ron Roy is now out of print.
Harbor Freight is a great place to find unbeatable prices for better HVLP spray guns with stainless steel parts and serviceable economy models, as well as detail guns, all tested by our members for spraying glazes, as well as compressors to power the guns. As yet no one has tested and commented on the remarkably inexpensive air brushes at harbor freight.
The critter siphon gun is a spray alternative that is well liked by some of our members, and is available at amazon.
Amazon is also a competitive source for photo light tents for shooting professional quality pictures of your work. They also have the EZ Cube brand favored by several of our members. You might also want to purchase the book Photographing Arts, Crafts and Collectibles . . .
If you are up to creating videos of your work or techniques you might want to invest in a flip video camera
Following are a few scales useful for potters. Ohaus Triple Pro Mechanical Triple Beam Balance, 2610g x 0.1g, with Tare $169.00
And finally a low cost clone of the OHaus. The Adam Equipment TBB2610T Triple Beam Mechanical Balance With Tare Beam $99.62
ebay is a great alternative for many tools and the equipment used in the ceramics studio - kilns, wheels, extruders, slab rollers are often listed there both new and used.
If you just want to spout off, it is best accomplished as a blog posting. If you want to get more guidance and ideas from other members, ask a question as a new discussion topic. In the upper right corner of the lists for both types of posting, you will find an "+Add " button. Clicking it will open an editor where you create your posting. 4/16/2014
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