Jump to content

Irabo Glaze, How To Apply A Thin Layer Of Glaze


Recommended Posts

Hello,

 

I am testing  an rabo glaze that requires a very thin layer of glaze. Il the layer is just a little thicker the glaze changes its aspect.

 

I have some problem:

 

-if i dip a cup in the glaze (even if its density is low) there are many areas in which the layer is thicker and the result is not good

 

-if i spray the glaze on the cup it is very difficult to tell the correct thickness, because it has to be thin... The result is random...

 

What can I do?

 

I thought maybe I can weight the glaze to tell how much I should spray, but all cups are in different sizes, it seems very difficult to tell....

 

Thank you for your advises.

 

Marcello

post-64537-0-00751100-1432365703_thumb.png

post-64537-0-00751100-1432365703_thumb.png

Link to comment
Share on other sites

Marcello, have you tried soaking the bisque in water before dipping the glaze?

Yes but the result was not satifing...

 

I think I will try weighting the glaze.

Do you think I can use an airbrush to paint the cup, instead of using my paint gun?

 

I havent' tryied brushing it.... I will make a test.

 

Thanks

Marcello

Link to comment
Share on other sites

Yes. Use an airbrush for applying a thin coat. Use a #5 Paashe nozzle or nose cone  if you have one. Just sieve the glaze first to make sure there are no lumps. Air brushes are very sensitive to granules. Use the largest size you have.

Badger airbrushes are also good for glazes.

 

Marcia

Link to comment
Share on other sites

In case this provides any food for thought, I found a few observations from Lee Love (aka Lee In Mashiko).

 

From: http://www.potters.org/subject104216.htm

I learned how to apply them during my apprenticeship and have
describe the method here previously. My teacher would thin his
Irabo glaze and apply the thinned glaze to the bottom half of the pot.
Then, he applied a thicker application to the top, but it was
thinner than your usual glaze. He almost always got perfect runs
stopping just before the foot.

Instead of thinning the glaze for the bottom of the pot,
I brush on the bottom part. Because the glaze moves, the brush marks
disappear.

 

example:

http://bp3.blogger.com/_fazefBgIw-Q/R3g-Wi5n6kI/AAAAAAAAAnU/uFnLhT1PqtM/s1600-h/IMG_1373.JPG

more at:

http://mashikopots.blogspot.co.uk/2007_12_01_archive.html

 

... here are some of the recipes Lee uses.

from: https://groups.google.com/forum/#!topic/woodkiln/hCafNxVbb0c

Hamada's Irabo
Wood Ash 4
Amakusa (Arita porcelain Stone) 1.5
Odo/Ocher 2

 

My Sander's Tamba glaze looks a lot like Hamda's Irabo

Sander's Tamba

Michigan Slip (I used Alberta) 60
Wood Ash (unwashed) 40
R.I.Ox 5

 

Also from https://groups.google.com/forum/#!topic/woodkiln/hCafNxVbb0c

  It might be possibe to substitute cornwall stone for amakusa

... Oops!   I mean Dolomite.

 

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.