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#21
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Back to this question.... I will have to buy a sieve - I believe I was told
80 mesh.... Is that going to be fine enough? "Bob Masta" wrote in message ... On Fri, 16 Jul 2004 06:21:07 GMT, "dkat" wrote: Well just posting has gotten me to the point of ordering ingredients. Now I'm stuck on which ones. Can anyone tell my why one over the other? Is the more expensive necessarily the better buy (or visa versa)? whiting Snocal 40 whiting Vicron 2511 Wollastonite W10 200M Wollastonite W20 352M Rutile Light Ceramic Rutile Dark Milled Rutile Grandular Neph Syn 270M Minex3 Neph Syn 400M Minex4 Potash Custer Potash G-200 Bentonite Western 200M Bentonite Western 325M Bentonite B Betonite 149 *Flint SIL-CO-SIL 75 (200M) Flint SIL-CO-SIL 52 (325M) Flint SIL-CO-SIL 40 (400M) * is this what I'm to use for Silica in the MC6G book? First, flint is indeed the form of silica most folks use. Higher mesh numbers (xxxM) indicate finer powders; they have been passed through a mesh with that many threads or wires per inch. Finer powders make glazes that will melt together faster, but I don't really have any experience comparing differences betweeen (say) 325M and 400M... I'd guess this would make no difference to most uses. I tend to mentally divide things into "coarse" and "fine" at around 100M, and wouldn't hesitate to use anything over 200M in a glaze. Prices may differ, so I'd go with what gets the job done most economically. And you might want to get some Gillespie Borate (or some other GB substitute) for those times when you need to get a low-temperature melt and low expansion. There are lots of recipes that call for this (or an "equivalent" frit), so I wouldn't rule it out just yet. Just my $0.02 worth... Bob Masta dqatechATdaqartaDOTcom D A Q A R T A Data AcQuisition And Real-Time Analysis www.daqarta.com |
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#22
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"D Kat" wrote in message ... Back to this question.... I will have to buy a sieve - I believe I was told 80 mesh.... Is that going to be fine enough? If you are going to buy only one sieve, buy that 80 mesh. If you are going to buy two, get an 80 and a 120. For coarser than 80, you can always use a piece of (metal) window screening, or a screen material kitchen strainer. I've worked that way for years. Funny, I've never rubbed off my fingerprints though :) Wayne Seidl Key West, Florida, USA North America, Terra Latitude 81.45W, Longitude 24.33N Elevation 3.1 feet (1m) |
#23
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On Mon, 19 Jul 2004 11:49:17 -0400, "wayneinkeywest"
wrote: "D Kat" wrote in message ... Back to this question.... I will have to buy a sieve - I believe I was told 80 mesh.... Is that going to be fine enough? If you are going to buy only one sieve, buy that 80 mesh. If you are going to buy two, get an 80 and a 120. For coarser than 80, you can always use a piece of (metal) window screening, or a screen material kitchen strainer. I've worked that way for years. Funny, I've never rubbed off my fingerprints though :) If you are looking for an inexpensive source for sieve material to make your own, the best place I've found is McMaster-Carr. A 1ft square of most any mesh size is in the 7-8 dollar range. I built a simple square fram from 2x2 lumber and stapled the sieve screen to the face of it, then gave the frame multiple coats of semi-gloss interior latex to seal both the wood and the seam where the screen meets the wood. Works great! McMaster-Carr is at www.mcmaster.com. For an 80 mesh sieve I got part number 85385T869 "Type 304 Stainless Steel Woven Wire Cloth, 80 x 80 mesh, 0.0055 inch wire diameter, 12" x 12" sheet". It was $7.24 one year ago. No minimum order, no "handling" charge. I also got 4 other sizes and the total shipping was only $4.25. Hope this helps! Bob Masta dqatechATdaqartaDOTcom D A Q A R T A Data AcQuisition And Real-Time Analysis www.daqarta.com |
#24
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Back to this question.... I will have to buy a sieve - I believe I was
told 80 mesh.... Is that going to be fine enough? If you are looking for an inexpensive source for sieve material to make your own, the best place I've found is McMaster-Carr. A 1ft square of most any mesh size is in the 7-8 dollar range. I built a simple square fram from 2x2 lumber and stapled the sieve screen to the face of it, then gave the frame multiple coats of semi-gloss interior latex to seal both the wood and the seam where the screen meets the wood. Works great! It might be easier to get a piece of PVC pipe about 200 mm diameter, and cut off about an 80 mm length. (I scrounged a bit of yellow PVC: is that for gas?) Lay the mesh on it, and run a biggish soldering iron (25 watts is plenty) round the edge, to weld the mesh into the PVC. Then cut round the outer edge, being careful not to leave any strands of the mesh sticking out. The big advantage of a circular frame is that there are no corners to clean out after use. -- Jake Loddington POULTON-LE-FYLDE, Lancashire, England |
#25
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We make our own plastic framed sieves using slices of reclaimed plastic
ducting, you can get it up to 8 inches in diameter. A better trick than a soldering iron it to put a hot-plate or frying pan on medium to low heat, lay a piece of cooking foil on it, then the mesh, then press the plastic pipe onto that until a small bead of softened plastic appears around the pipe/mesh join. Remove from the heat and place on a cold surface, and then peal off the foil. Finally clean off the edge on a sander. It takes longer to write about it than to do it! Steve Bath UK In article , Jake Loddington writes Back to this question.... I will have to buy a sieve - I believe I was told 80 mesh.... Is that going to be fine enough? If you are looking for an inexpensive source for sieve material to make your own, the best place I've found is McMaster-Carr. A 1ft square of most any mesh size is in the 7-8 dollar range. I built a simple square fram from 2x2 lumber and stapled the sieve screen to the face of it, then gave the frame multiple coats of semi-gloss interior latex to seal both the wood and the seam where the screen meets the wood. Works great! It might be easier to get a piece of PVC pipe about 200 mm diameter, and cut off about an 80 mm length. (I scrounged a bit of yellow PVC: is that for gas?) Lay the mesh on it, and run a biggish soldering iron (25 watts is plenty) round the edge, to weld the mesh into the PVC. Then cut round the outer edge, being careful not to leave any strands of the mesh sticking out. The big advantage of a circular frame is that there are no corners to clean out after use. -- Steve Mills Bath UK |
#26
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Another way is to put a piece of silver foil in the bottom of an electric
frying pan, or a regular frying pan and put the screening down on the the silver foil and place the pvc pipe, or a piece of cut off, 5 gallon bucket, on top and weight down or press down until the plastic melts the sieve mesh to itself. Regards, June http://www.angelfire.com/art2/shambhalapottery/ |
#27
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I don't know where I read this but...
Cut off the top 4-5 inches of a 5 gal bucket. Then, insert the bottom potion of the bucket through the ring from top to bottom so the two pieces wedge together. Trim so both rings are the same length. Remove the inner ring and place a piece of screen on the top of the outer ring. Insert the inner ring so it secures the screen. If you can follow what I just wrote, more power to you! It is not hard to do, just hard to follow. If all else fails, use the previous suggestions utilizing the hot plate. Steve in Tampa. Place the screen on the top of this ring. "ShantiP1" wrote in message ... Another way is to put a piece of silver foil in the bottom of an electric frying pan, or a regular frying pan and put the screening down on the the silver foil and place the pvc pipe, or a piece of cut off, 5 gallon bucket, on top and weight down or press down until the plastic melts the sieve mesh to itself. Regards, June http://www.angelfire.com/art2/shambhalapottery/ |
#28
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Such a wealth of info I don't know where to start. Thank you again. Donna
"Bob Masta" wrote in message ... On Mon, 19 Jul 2004 11:49:17 -0400, "wayneinkeywest" wrote: "D Kat" wrote in message ... Back to this question.... I will have to buy a sieve - I believe I was told 80 mesh.... Is that going to be fine enough? If you are going to buy only one sieve, buy that 80 mesh. If you are going to buy two, get an 80 and a 120. For coarser than 80, you can always use a piece of (metal) window screening, or a screen material kitchen strainer. I've worked that way for years. Funny, I've never rubbed off my fingerprints though :) If you are looking for an inexpensive source for sieve material to make your own, the best place I've found is McMaster-Carr. A 1ft square of most any mesh size is in the 7-8 dollar range. I built a simple square fram from 2x2 lumber and stapled the sieve screen to the face of it, then gave the frame multiple coats of semi-gloss interior latex to seal both the wood and the seam where the screen meets the wood. Works great! McMaster-Carr is at www.mcmaster.com. For an 80 mesh sieve I got part number 85385T869 "Type 304 Stainless Steel Woven Wire Cloth, 80 x 80 mesh, 0.0055 inch wire diameter, 12" x 12" sheet". It was $7.24 one year ago. No minimum order, no "handling" charge. I also got 4 other sizes and the total shipping was only $4.25. Hope this helps! Bob Masta dqatechATdaqartaDOTcom D A Q A R T A Data AcQuisition And Real-Time Analysis www.daqarta.com |
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