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Member Since 28 Jun 2010
Offline Last Active Yesterday, 07:25 PM

#74394 Pitting

Posted by bciskepottery on 29 January 2015 - 10:50 AM

Refiring to fix glaze defects (like pitting) is generally a crapshoot. It may work, it may not . . . I've seen it go both ways (though more often in the not category). Just approach it as a test . . . if it works, then it is a good test, if it does not, it is still a good test because you learned how your glazes will look refired.

You may need to go hotter (longer soak at cone 5, maybe go to cone 6), not cooler (cone lower) to even out the glaze. Firing lower, the glaze may not melt enough to become viscous enough to heal over the pitting. Plus, you don't want to risk the rest of the kiln with underfired work at a lower cone and your glazes will not look the same at that temperature.

#74247 Dishwasher Safe

Posted by bciskepottery on 27 January 2015 - 10:06 PM

If your clay vitrifies at cone 5, unglazed should not be a problem on the bottoms.  Laguna has absorbency, shrinkage and other data for their clays on their website.  I try to keep absorbency to 2% or less, but shoot for clay bodies with 1%.  Stoneware or porcelain.  If the glazes are rated Cone 5/6, likely okay . . . but it may be worth doing a couple of the durability tests just to make sure  -- running them through the dishwasher repeatedly, lemon slice on glazed surface to see if it discolors, etc.  Mastering Cone 6 Glazes lists tests you can do at home; these are preliminary tests, not finals, though.  Other books also describe them.  Try a google search for glaze durability testing.  If they fail  the at home tests, find other glazes.  For finals -- especially for leaching (although with commercial glazes you really don't know what to test for as you don't know what the glaze is made of), you need to submit to a laboratory.

#74124 Reasonable Fee For An Accountant?

Posted by bciskepottery on 26 January 2015 - 07:31 AM

I will refrain from any jokes about "reasonable fee for an accountant" being an oxymoron.  (It's okay, I work with accountants every day, just don't want to be one.)

#74093 Dream Tool

Posted by bciskepottery on 25 January 2015 - 06:21 PM

Attached File  tools.JPG   80.04KB   5 downloads


These aren't "dream" tools . . . but tools I made (like Paul) out of necessity.  I am mostly a hand-builder and needed tools to help seal seams of taller cylinders.  They also work great -- especially the ones with roller balls -- on bellying out wares.  Simple. Inexpensive. 



#73974 Best Book For Beginning Glaze Making

Posted by bciskepottery on 24 January 2015 - 11:01 AM

If you are a visual learner, consider John Britt's video http://ceramicartsda...tanding-glazes/


Also, his recent book on mid-fire glazes is a good how to book that applies to making/tweaking glazes regardless of temperature  http://johnbrittpottery.com/

#73960 Dealing With Allergies?

Posted by bciskepottery on 24 January 2015 - 09:13 AM

Clay can develop mold, but the other and more likely culprits are slop/reclaim buckets and pre-wash buckets/barrels of water.  Adding some bleach on a regular basis helps there.  Also, check for condensation around air conditioning and air purification/circulation units.  Check kiln and spray booth exhaust systems for any potential leaks that might be releasing fumes into the studio area.  One of the worst I've seen are stand alone fans -- dust and other particles cling to the fan blades as air moves through them.  Same for ceiling fans. 


I worked out of a community studio for a while; progressively the symptoms became more pronounced and I left; no amount of cleaning could remediate years of neglect or the work habits of fellow studio users or exhaust fumes from kilns vented into the kiln room and not outside.  I now work at home.  Miss the company (at times) but enjoy being able to breath without medication. 

#73629 Britain's Best Potter

Posted by bciskepottery on 19 January 2015 - 07:10 PM

Had to rate myself 1-10 on loads of stuff. How do I give a number for 'mixing glaze'  :P

If you manage to spill it down the front of your pants (with acknowledgements to ChenowethArts), give yourself an "11".

#73624 Clay Slick In The Driveway

Posted by bciskepottery on 19 January 2015 - 04:55 PM

And I can bet your spouse still says no, as you eye the nice pillow cases in the linen closet and try to make the case your reclaim clay really deserves 400 or 500 thread pillow cases.

#73573 Community Challenge Idea

Posted by bciskepottery on 18 January 2015 - 02:14 PM

I thought it would be easiest to start it on the 1st of Feb, I also feel like I need permission from an admin  :ph34r: otherwise I am starting up a secret club  B)


Don't worry, "big brother" already knows.  After a three page discussion, with 50+ comments, there are no secrets in the community. 

#73555 Does Your Body Clock Have A 'creativity' And 'productivity' S...

Posted by bciskepottery on 18 January 2015 - 09:31 AM

I' m not sure you can separate the two . . . I often find myself doing the "creating" while "producing". Mornings tend to be more active, creative wise and productivity wise, afternoons tend to fall off (mental and physical fatigue), but evenings can be a second wind for both. I am part-time working, part-time potting, and part-time retired . . . and each of those has their own moments of creativity and production.

#73186 Test Post - Please Ignore!

Posted by bciskepottery on 09 January 2015 - 08:00 PM

Attached File  Green-with-white-Polka-dots-Gloss-Party-Box-190x190.png   36.33KB   1 downloads

#73092 Keeping Casserole Lids From Sticking During Glaze Firing

Posted by bciskepottery on 08 January 2015 - 06:14 PM

If you add alumuna hydrate to liquid wax, also add a couple drops of food coloring so you can tell that wax container from your regular wax container. For my regular wax, I add a couple drops of green food color -- helps show the wax on white clay bodies. For the alumuna/wax mix, add a couple drops of another color so you don't confuse the two.

#73002 Repeat Customers

Posted by bciskepottery on 07 January 2015 - 07:02 AM

Look at the Pantone site, the catalogues from upper end stores etc to see what the color trends for 2015 are.

Chris, no criticism intended, I thought this was such interesting advice that I went to check the Pantome color of the year 2015: Marsala, as in dark wine or rust colored blood. I just thought, all those 'brown" potters are stepping up production and cheering!!! Too funny, if one believes this to be the color of the year for home decoration, clothing and nail polish... who thinks that color will last into warm weather?

Someone is getting paid way too much money to "set the trends", me thinks.

Yep, make a glaze the color of the year and watch your work blend right into the background of the wall colors! Seriously, is that what we want to make?

Many of my customers seem to prefer a color palate that allows them to use a vase or container in any room . . . regardless of color scheme. They may want to repaint the walls or hang new drapes every year to be current, but they don't replace all their belongings. Be a sheep and follow Pantone; or set your own path and identity.

#72964 An Observation

Posted by bciskepottery on 06 January 2015 - 12:47 PM

What is most telling to me is Aristotle's distinction between those who "can" and those who "know". And that distinction makes all the difference in the world.

#72868 Smithsonian Freer/sackler Collection Is Now On-Line

Posted by bciskepottery on 04 January 2015 - 08:26 PM

Enjoy . . .