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Member Since 08 Sep 2012
Offline Last Active May 26 2017 10:53 PM

Posts I've Made

In Topic: Filling The Kiln With Tiles

22 May 2017 - 08:54 AM

The other possible issue could be how you use your slab roller. You have to make smaller compressions as you, as well as roll in both direction instead of just one. On large pieces, I roll way past the width and length I need, and cut my piece out of the center. The ends and sides are the weakest, so I avoid cutting tiles on the edge of the slab.




Good point.  There have been numerous discussions here about rolling out slabs, especially those that are large.  Many, who work a lot with slabs will flip and rotate their clay slabs in between rolling.  In other words, they partially thin it with the roller, then rotate it 90 degrees, as well as turn the entire slab over.  This is done with each successive pass.  That way slab is receiving the same amount of pressure all around.


I don't work with large slabs, so I cannot say how well this prevents cracking/ breaking.  Just to be safe, I even do it with my smaller slabs, everything from several inches by several inches to slabs that are even smaller.

In Topic: Clay Trap Suggestions?

19 May 2017 - 08:46 AM


The dental office my Wife works in, uses the traps because of the plaster work they do.  They've never had an issue with anything getting past the trap.



Gleco traps were first developed for dental offices and plaster work.



That would explain a lot.  It's always interesting, when I find overlaps between my work experience and my Wife's, despite the general difference.  We've also had discussion about photo processing, due to the X-rays they take.  That's no longer the case though, as they've gone all digital with their X-rays.


We've even talked about ceramics a bit, as they have a machine that makes crowns, out of a ceramic material, that they also glaze.  And somehow all of that only takes an hour or two.

In Topic: Iron Oxide Slip

19 May 2017 - 08:43 AM

I spoke too soon with my slip.  Put a clear over the pieces I used it on, and it turned a dark brown.  I still like how it looks, especially on a piece where I did a sodium silicate crackle.

In Topic: Clay Trap Suggestions?

16 May 2017 - 08:42 AM

I've heard nothing but good things about Gleco Traps.  When my classroom trap began leaking, for reasons I still don't know, I sent our Buildings and Grounds Head a link to the Gleco Trap.  He instead ordered the same trap we had...  It "works" but is a pain in the butt to clean, in a small awkward space.  It consists of an outer layer, with an inside piece that slides in from the top.  The inside piece has a strainer/ screen.  The only way to know the trap is full, is to either pull the inner piece out, or just wait until the drains are slow.  To clean, you have to undo the two hinge/ buckle locks that hold the inner piece to the outer, creating the seal.  I then have to lift straight up, which is difficult due to low clearance of the underside of the sinks, as well as the water supply lines.  The inner piece is usually hard to lift out, because I am fighting the weight of the water, the sludge, as well as the suction created.  Then I have to move the trap into a waiting large bowl so I don't drip the sludge everywhere under the sink and floor.  Also, there is usually some residual sludge that gets under the trap screen.  So I have to scoop that out by hand.

So in summary, my trap sucks...


The dental office my Wife works in, uses the traps because of the plaster work they do.  They've never had an issue with anything getting past the trap.


I will be purchasing one for my home studio, when I get the utility sink installed.

In Topic: Iron Oxide Slip

08 May 2017 - 08:37 AM



What color of iron?  I've only tried black iron oxide, but had no issue getting it to be black...ish... More of a dark grey, but still nice.


Are you using the iron oxide, you'd add to glaze recipes, or a mason stain?  I've noticed that some of the black mason stains note that the zinc in them will lead to more brownish colors, than black.


Also, I had a black iron oxide, that would turn greenish, when covered with Amaco's Clear Transparent.