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Mark C.

Member Since 09 Jan 2012
Offline Last Active Today, 05:18 PM

Topics I've Started

Calcining Epk Or Whatever You Need

18 October 2014 - 08:58 PM

I was doing my every 4-5 year wash job and I was loading up some bowls with epk for calcining for my wash formula.

Heres how I do it in some green bowls as well as one cracked bisqued one I use just for this purpose .

You can use whatever form you have as it all just comes out and after you blow or towel out the form its ready to glaze.


Small Stuff Sells-This One Sweet Dish Is From Oldlady

18 October 2014 - 08:41 PM

I still am not easy with calling her Oldlady but she insists it seems.

Here is a dish she sent me next to a dime as well as a ruler. its one sweet dragonfly dish she sells for 7$.Its a perfect stuffer size when loading.

These smaller items add up fast-my guess is she press molds a image into the clay form but she can explain.

Its an green Oribe glaze.


Very Strange Bisque Fire-Or How To Wash And Fire Advancers

18 October 2014 - 08:36 PM

Every 4-5 years I grind old wash on about 2/3 of my advancer shelves-I grind tops and bottoms these are 12x24 .At this time I do about 1/2 my posts as well on ends as they like to stick to advancers as does anything mullite made. I also do all mt 1/4 and 1/2 and 3/4 nerds for adding a bit during the stacking.This is a big job and I like to do it when its still warm and sunny before winter. So past few days between rains I got a chance to do it. Mask eye and ear protection a must. I grind the backs to smooth all post marks off.

I then flip them and grind off the wash -sweep the dust and get them hot in sun before paint rolling with roller two coats and let it dry between coats. Then scrap the edges with a scraper  so they are clean. I then stack all into a bisque fire and ver slowly fire this as advancers will blow up if you have them wet and go to fast. I like to do this over a few days-giving them a bit of heat then off and let them sit -then on etc. If I bisque them carefully after the wet wash is dry then I can glaze fire them without worry as to rate of climb so they do not blow up as they are all dry already.

All this is to keep my porcelain from plucking or ticking to the raw advancers .These shelves are the best I have ever had and as I have over 10,ooo into them I take care of them. By now they are actually are free as they have paid for themselves many times over in space savings. I have over 50 of them.

This bisque is almost full-just waiting for some pots to dry for the top. I have a bunch of bisque ware so the next load will be full.

I like a grinding cup on my Milwaukee verbal speed grinder as well as a smaller 4 inch Makita for the light duty edges etc.

This job is a killer and demands a shower afterwards.

I'll get this fired in a few days now.This work pays off for many years in the future and is part of my cycle as a potter. Over the years the shelves have changed materials many times but now these will last as long as me and be passed on to another potter. They are made in an electric arc furnace in a nitrogen enriched environment with no oxygen -just an amazing process.

My wash formula is 1/2 alumina Hydrate 1/4 calcined EPK 1/4 EPK mixed like thick cream.

This amount of shelves are for two kilns.


Custom Sinks-The Easy Overflow

18 October 2014 - 08:15 PM

Cleaning up I ran into one of my old collars I used as overflow connections below sink -you silicone this to your thrown hand made sink with a plastic tube from overflow that you hand build into upper part of sink. This lower connection gets you away from having a clay extrusion on outside wall.It fits most all drain brands.

This piece is for the bootom of your sink. below the foot.


I'm Looking For Old Talc-Do You Have Any?

12 October 2014 - 06:22 PM

I'm finally getting low on my talc stash from the 70-80's. I use it only in one of my satin matt glazes at cone 10.This talc is from long ago and has been replaced with pioneer talc which is grey in color. It was widely sold in the 70s and 80's

Its called desert talc or ct-30-

most bags where not marked and if they where they are in orange writing like this-

Cercron CP-96-30     Pfzer minerals 50#s The talc is bright white

Keeping with the rules here I cannot buy this so I would trade you whatever you need in ceramic materials say like cobalt carb. or whatever-I hope this fits the rules.

You can PM me if you have any from long ago.