Jump to content


Photo

Trouble With Dried Out Glaze

glaze composition

  • Please log in to reply
8 replies to this topic

#1 Babs

Babs

    Advanced Member

  • Members
  • PipPipPip
  • 1,119 posts

Posted 29 August 2014 - 08:08 PM

I had a bucket of totally dried out glaze. I slaked it down then ssieved it. I was left with slurry of stuff which would not pass through the sieve. I seived, watered down a number of times and still no go.

So I will test the glaze, minus the gritty stuff before use. the glaze recipe is below. Which component would give this problem.

The fact that I did not use this glaze for years does make it non precious to me but I am just interested as I now do work that I could use bits of glaze to layer onto pieces so saving throwing out these part buckets.

If there is an identifyable chemicla I'll just not waste time with them.

De Boos Mushroom. 

Frit 3134             50

Potash Feldspar 20

Ball Clay C         20

Mg Carb light     10

Tin or Zirc           10

 MNO2                  5



#2 Marcia Selsor

Marcia Selsor

    Professor Emerita, Montana State University-Billings

  • Members
  • PipPipPip
  • 4,065 posts
  • Locationwhere Texas, Matamoros, Rio Grande and Gulf of Mexico come together.

Posted 29 August 2014 - 10:40 PM

Take the stubborn particles and run them in a blender for a while and then try to sieve. You should be able to break it down again.
Marcia

#3 Mark C.

Mark C.

    Advanced Member

  • Members
  • PipPipPip
  • 3,055 posts
  • LocationNear Arcata Ca-redwood rain forest

Posted 29 August 2014 - 10:49 PM

The cheap thrift store blenders are one of my favorite shop items.

They work great for zinc and other stubborn materials like your glaze.

Mark


Mark Cortright
www.liscomhillpottery.com

#4 Wyndham

Wyndham

    Advanced Member

  • Members
  • PipPipPip
  • 434 posts
  • LocationSeagrove NC

Posted 30 August 2014 - 10:15 AM

You might also put the material in hot , almost boiling water to dissolve the soluble salts from the frit plus other stuff that may have formed.

Wyndham



#5 Chantay

Chantay

    Advanced Member

  • Members
  • PipPipPip
  • 260 posts
  • LocationVirginia, USA

Posted 01 September 2014 - 07:11 PM

Wow. Great advice. I have some real chunky stuff to deal with.
- chantay

#6 neilestrick

neilestrick

    Neil Estrick

  • Members
  • PipPipPip
  • 2,798 posts
  • LocationGrayslake, IL

Posted 02 September 2014 - 09:45 AM

You might also put the material in hot , almost boiling water to dissolve the soluble salts from the frit plus other stuff that may have formed.

Wyndham

 

That's exactly what I was thinking- 3134 has a fair amount of soluble material that has probably formed the chunks. It won't blend well.


Neil Estrick
Kiln Repair Tech
L&L Distributor
Owner, Neil Estrick Gallery, LLC
www.neilestrickgallery.com

neil@neilestrickgallery.com

#7 perkolator

perkolator

    Advanced Member

  • Members
  • PipPipPip
  • 333 posts
  • LocationCalifornia

Posted 02 September 2014 - 12:45 PM

blender, immersion blender, or remove the chunks and mortar/pestle them



#8 Babs

Babs

    Advanced Member

  • Members
  • PipPipPip
  • 1,119 posts

Posted 02 September 2014 - 06:19 PM

Get physical, right!



#9 Mark C.

Mark C.

    Advanced Member

  • Members
  • PipPipPip
  • 3,055 posts
  • LocationNear Arcata Ca-redwood rain forest

Posted 02 September 2014 - 10:48 PM

Real hot water-in a blender-works wonders

Mark


Mark Cortright
www.liscomhillpottery.com




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users