Jump to content
Sign in to follow this  
Darcy Kane

How much ash is too much ash

Recommended Posts

Darcy Kane    28

I am experimenting with sieved (not washed) wood stove ash. I am attempting to get a little rim action in my glazes. Someone suggested that I dip my just glazed rims into sieved ash and the damp glaze would cause the ash to cling. Well cling it did and now I am wondering how much is too much! My instincts told me to knock some off, which I have done, but before I fire I wonder if anyone has tried this before and how much ash is too much.

 

I have put all the dipped pots on one shelf so if I have any "run off" it will only trash one shelf. There is just something unappealing about grinding shelves in 90+ temps.

Share this post


Link to post
Share on other sites
TJR    359

Hey, Dharsi;

Good on you for trying something new. If you are not sure if your ash will run or not, place your pots on broken kin shelves. You could also make some clay wadding-50% alumina hydrate,50% kaolin, and get the foot rings up off the shelves.

Lots of potters dust their pots with wood ash by sieving the ash above them in an arty way.

Sometimes, too much of a good thing can be too much of a good thing.I wouldn't be putting ash into open bowls unless it was sieved at 80 mesh or more.Don't forget to use a dust mask. Ash is caustic.

Check out Simon Leach on youtube. He uses this method on his GP bowls.

TJR. Send us some pictures!

Share this post


Link to post
Share on other sites
Darcy Kane    28

Well I am thrilled to say that my shelves survived unscathed. Come to find out, a light dusting of ash is enough in my case. Here is one of the little pots that I subjected to the ash test.

Share this post


Link to post
Share on other sites
kathi    2

Dharsi,

At what cone do you fire? Oxidation or reduction? I am really interested in playing with ash as well.

Share this post


Link to post
Share on other sites
Darcy Kane    28

Dharsi,

At what cone do you fire? Oxidation or reduction? I am really interested in playing with ash as well.

 

 

This is cone 10 oxidation but I keep saying that when I use up my glazes I am going to switch to cone 6. I didn't have any run off the pot, but it came close a couple of times.

Share this post


Link to post
Share on other sites
kathi    2

Dharsi,

At what cone do you fire? Oxidation or reduction? I am really interested in playing with ash as well.

 

 

This is cone 10 oxidation but I keep saying that when I use up my glazes I am going to switch to cone 6. I didn't have any run off the pot, but it came close a couple of times.

 

 

Interesting.....Does ash have any effect on the integrity of the kiln or elements?

Share this post


Link to post
Share on other sites
Dinah    6

The ^10 oxidation will have some affect on the integrity of the elements in jig time! Ash won't be a bother to elements, but if there's a lead glaze in anybody's repertoire at lower temps, it certainly will. Fact.

 

You'll prolong the life of your kiln and also be able to replicate your glazes at ^6. Takes a bit of tweaking, but it's well worth it. I've been there.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×