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123pop

Member Since 02 May 2012
Offline Last Active Dec 14 2014 07:38 AM
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Posts I've Made

In Topic: Manganese Dioxide

05 December 2014 - 06:32 PM

Well isn't 112 clay used in many a studio?  And aren't all those specks

(112 BROWN CLAY (Cone 4-6)

Plastic clay for wheel and modeling. The addition of granular manganese gives a speckled surface. )

 

Manganese?  Is this dangerous.  I just started using 112 and there are a lot of specks and I fire in my basement with a window fan.

Am I being stupid??

 

 

I


In Topic: Water Vapor In Kiln

04 October 2014 - 08:07 PM

My kiln did not shut off for my last bisque firing last Sunday.  I knew it wasn't getting hot enough.  Couldn't see the glow between the lid and the base.  After wishful thinking shut it down after 17 hours. Checking with a meter found it was the top switch. Looked like it had a little nest in it.  Got a new one from Cress in 2 days, installed it and today bisque fired again..off in 7 hours.  I hurried it a bit since everything was almost 04 but had no idea what cone.

Last glaze firing the kiln sitter cone broke and shut it down early. Everything was unfired. Orton said to tug a bit on the cone before using.  Then if they are weak or cracked they will break and you won't risk an underfire. I refired and everything turned out fine.  I had about 10 in the box pull apart.   I think I'm due a few good firings in a row now.

Hope all goes well.  It could be the damp ware.  I am very conservative and glaze fire very slowly 13-15hours.


In Topic: Hot Wax For Bottoms Of Pots?

01 October 2014 - 10:28 AM

I too was using the fry pan method with tea candles.  I had a lot of wax on the bottoms.  Then I felt I had to scrap it because the wax fumes were bad when firing.  I just bought some Forbes wax resist....goes on so easy with a small foam brush.  And you don't get that little " burp mark" on glaze edge.


In Topic: How To Troubleshoot Kiln Problem

30 September 2014 - 01:17 PM

Thanks all ...electrician friend checked it out with meter.  Elements look fine.  The switch seems to be working  intermittently on one side.  All others look good.  No apparent corrosion or fried parts.  Ordered switch $24 but shipping is horrendous.

  Now I suppose I should refire the bisque.  Underfired bisque (was trying to go to 04) can give you lots of problems right?


In Topic: How To Troubleshoot Kiln Problem

30 September 2014 - 07:57 AM

Whoa!  Looked at the cage covering ...it looks pretty complicated.  I need step by step info.