Albany Slip Glaze As A Clear?

[David F.]

I mixed up a batch of Albany Slip glaze for cone 6 firing and forgot to add the oxide after sieving. I went ahead and used it and it turned out a very nice clearish glaze. What are the cons of using this as my clear from now on?

[Deb Evans]

Can't say for sure without seeing the receipe.

Usually ck for fit and flux > no crazing,good , even melt.

red iron is a colorent and because of the amount in albany slip it's acting as flux too.

[David F.]

Sorry, I intended to leave the recipe. Alberta Slip-80%; Neph. Sy.-10%; G. B.- 10% .

[Pres]

Sorry, I intended to leave the recipe. Alberta Slip-80%; Neph. Sy.-10%; G. B.- 10% .

 

 

So you are saying your recipe uses Alberta, not Albany slip? I was wondering about the first post, as I thought that Albany was no longer available except to the very few that have some. I was also wondering why you would use if for a clear when it has such rich possibilities in the brown-yellow range. Your second post cleared that all up-Thanks.

[Deb Evans]

So

you just mixed up neph sy and g borate ?

I looked up alberta slip ( not familar w/ it ) and got this from Continental clay's web site...

 

 

"Alberta Slip (44# bag) Albany Slip substitute

 

 

Alberta Slip is a medium plasticity clay-like material. It can be mixed with water to produce a body that can be modeled or thrown on a potter's wheel and fired at low temperatures.

 

 

Like classic Albany Slip, Alberta Slip melts fairly well from cone 6 up. By cone 10 it produces a glossy brown in oxidation and a tenmoku in reduction.

 

 

Since it is basically a clay material, it generates a significant amount of gases as it decomposes during melting. These tend to make it an 'active' melter in that it bubbles and heaves as it melts (if applied in a very thick layer). For a better melt add a boron frit (i.e. Ferro 3134) and fire slow enough to give it time to smooth out."

 

so the addition of neph sy and g borate serve the same fuction as ff 3134.