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About Mark C.
- Birthday 03/15/1953
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Website URL
http://www.liscomhillpottery.com
Profile Information
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Location
Near Arcata Ca-redwood rain forest
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Interests
Diving-underwater photo-salvage diving-dive Travel
Extreme offshore tuna fishing off north coast of Ca.
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Mark C.'s Achievements
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Custar Feldspar now not available again
Mark C. replied to Mark C.'s topic in Clay and Glaze Chemistry
Laguna will be carring these potassium feldspars .Mahavir and Vardham from India and G-200 depending on availability -
Babs reacted to a post in a topic: Gas or Electric Kiln For Starting Out
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Reitz Green without Gerstley Borate?
Mark C. replied to davidh4976's topic in Clay and Glaze Chemistry
Gillespie borate is still around at some places as well as Custar-just need to look harder and stock up. IMCO in Sacramento Ca has the gellespie for cheap cost -
Rae Reich reacted to a post in a topic: Clay recommendations for wheel thrown sculptural work
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Pres reacted to a post in a topic: Clay recommendations for wheel thrown sculptural work
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Rae Reich reacted to a post in a topic: Custar Feldspar now not available again
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Magnolia Mud Research reacted to a post in a topic: Clay recommendations for wheel thrown sculptural work
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Clay recommendations for wheel thrown sculptural work
Mark C. replied to tman123's topic in Studio Operations and Making Work
If you are firing in the cone 10 range and these clay items are just sculpture then Laguna's WSO is the most forgiving clay I have ever found.I feel Bmix with grog is not your best sculpture clay no matter what temp range-get a more loose body It's more like a cement feel than clay and very tough to crack. I made a 3 foot wall fish from it and it came out fine spanning 3 -12x24 kilns shelves on a waster slab -
Got a notice about this thru a few sources. Laguna has 2-3 other choices with Mahavir Feldspar being the go to Hard to say if this is permanent or will change again-if You like custar and need custar buy oit now while you can find it.-Last call
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Mark C. reacted to a post in a topic: Glaze thinning over time?
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Pres reacted to a post in a topic: QotW: How do you level the bottoms of thrown pieces?
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small forms like mugs and other with no feet are thrown on plaster bats and no leveling is needed as the clay pad is flat and so is the plaster bat. If the form is not lever we tap it level on a plater bat. Trimmed foot forms are do not need any adjustment ever . When I switch to larger forms not on plaster bats (over 8#s ) I use a wire to cut and trim the bottom foot. This all is second nature after a few decades in the business
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HenryBurlingame reacted to a post in a topic: Gas or Electric Kiln For Starting Out
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Hulk reacted to a post in a topic: Gas or Electric Kiln For Starting Out
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Gas or Electric Kiln For Starting Out
Mark C. replied to HenryBurlingame's topic in Equipment Use and Repair
(After thinking long and hard about what you have said and after reading through all my glaze books I think I just need to go gas, I can’t help myself.) Welcome to my world -
HenryBurlingame reacted to a post in a topic: Gas or Electric Kiln For Starting Out
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Gas or Electric Kiln For Starting Out
Mark C. replied to HenryBurlingame's topic in Equipment Use and Repair
No permit and easy for gas then I suggest gas but I am a cone 10 gas potter myself so I am a bit bias. Learning with gas and cone 10 is a big learning curve but very doable. -
HenryBurlingame reacted to a post in a topic: L&L vs Cone Art Kilns
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I love the L&Ls -not to famailar with Canadian cone arts to much. LL has the great element holders and has well thought out details like cooler held off controls. Just a note about cone 10 in an electric-if thats the goal (cone 1 firings) then spring for the high cost elements or plan on replacing them a lot even with the high price ones they wear fast at cone 1O. Also consider the S thermocouples for better life . Neil here has the most experience with them and I'm sure will advise.-He is also a distributor in the east.
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Bisque Menders Recipe - Making Your Own
Mark C. replied to Hyn Patty's topic in Clay and Glaze Chemistry
kyanite is something I use in my home made ITC mix and comes in many mesh sizes. Does not shrink The crystals are long and its one of the strengtening things say in mulite kiln shelves It great stuff -
I bet they made some small hobby doll kilns and the like in the UK that ran on 120 like they did here
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This is several solutions all in one from Jeff who I had the pleasure of meeting a few weeks ago. Dealing direct with the manufacture on seconds or even a pile of used ones is really a lead worth exploring . I know of several huge piles of them in my area from tow sources as most potters are long gone and the hoarders (I only have a small pile) do not know how to get rid of them here now. Rent a heavy duty truck and go pick them up in MO or have them trucked to you from the factory. I have moved more hard brick in my life than I will ever need. I built several kilns with them ,my salt being the last.
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I could have mailed those 4 #3 bricks to you from my hoarder fire brick pile.
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If this is in the UK? then we need to know more on what the electrical voltage is in the UK. Maybe some UK potters can chine in with this tec info