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trina

Grog

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trina    20

Hi there,

 

Can anyone share ideas with me about 'homemade' grog. I have some chimney bricks which I am considering bashing up and adding to some low fire terracotta clay body.

Thanks in advance

 

 

 

Trina

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TJR    359

It's possible to bust up old bisque ware to make grog and I'm sure you can break up bricks as well.

Couple thing to consider;

1. What temperature were the bricks fired at? If you put them in your clay will they blob out the side? Make a test fire of some on a broken kiln shelf first.

2. How can you smash the particles small enough? This is what machines are for- like a jaw crusher and a plate mill.[found in Geology departments].

3. Then you have to sieve your grog to get the right particle size.

4. DUST!!!

I have used grog from bisque. Works great, but I don't tend to use a lot of grog for functional pots unless you are rakuing, or making sculpture.

TJR.

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Can anyone share ideas with me about 'homemade' grog. I have some chimney bricks which I am considering bashing up and adding to some low fire terracotta clay body.

 

You could make kaolin grog from powdered firebricks.

 

Sincerely,

 

Arnold Howard

Paragon Industries, L.P., Mesquite, Texas USA

ahoward@paragonweb.com / www.paragonweb.com

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trina    20
Can anyone share ideas with me about 'homemade' grog. I have some chimney bricks which I am considering bashing up and adding to some low fire terracotta clay body.

 

You could make kaolin grog from powdered firebricks.

 

Sincerely,

 

Arnold Howard

Paragon Industries, L.P., Mesquite, Texas USA

ahoward@paragonweb.com / www.paragonweb.com

 

 

Hi there, Thanks for your reply, are we talkin powdered as in dust? I am planning to do something sculptural in terra cotto and burn it in a pit fire so I know the temps arent going to be more than whatever the fire brick was fired at. I was thinking of rice sized bits. ;) Trina

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trina    20
Can anyone share ideas with me about 'homemade' grog. I have some chimney bricks which I am considering bashing up and adding to some low fire terracotta clay body.

 

You could make kaolin grog from powdered firebricks.

 

Sincerely,

 

Arnold Howard

Paragon Industries, L.P., Mesquite, Texas USA

ahoward@paragonweb.com / www.paragonweb.com

 

 

Hi there, Thanks for your reply, are we talkin powdered as in dust? I am planning to do something sculptural in terra cotto and burn it in a pit fire so I know the temps arent going to be more than whatever the fire brick was fired at. I was thinking of rice sized bits. ;) Trina

 

 

 

So I smashed up my fire brick wacked it into my clay, decided to make two very large tiles / masks and am now hoping for the best. I did only use the finest dust and will use the rice sized bits for my original idea.... will keep you posted :). Trina

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neilestrick    1,381

My only question is: WHY? You can buy red grog, and have a much more consistent product than you can make yourself. If you do make your own, it's best run it through a screen to get the right particle size. Generally, clay bodies will use a 30-80 mesh grog. And be sure to test. Some red bricks fire a lot lower than you'd think.

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trina    20

My only question is: WHY? You can buy red grog, and have a much more consistent product than you can make yourself. If you do make your own, it's best run it through a screen to get the right particle size. Generally, clay bodies will use a 30-80 mesh grog. And be sure to test. Some red bricks fire a lot lower than you'd think.

 

 

 

Why, well because I am too darn lazy to drive the hour and half to the closest pottery store.... ;)

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neilestrick    1,381

My only question is: WHY? You can buy red grog, and have a much more consistent product than you can make yourself. If you do make your own, it's best run it through a screen to get the right particle size. Generally, clay bodies will use a 30-80 mesh grog. And be sure to test. Some red bricks fire a lot lower than you'd think.

 

 

 

Why, well because I am too darn lazy to drive the hour and half to the closest pottery store.... ;)

 

 

I know how you feel....

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trina    20

My only question is: WHY? You can buy red grog, and have a much more consistent product than you can make yourself. If you do make your own, it's best run it through a screen to get the right particle size. Generally, clay bodies will use a 30-80 mesh grog. And be sure to test. Some red bricks fire a lot lower than you'd think.

 

 

 

Why, well because I am too darn lazy to drive the hour and half to the closest pottery store.... ;)

 

 

I know how you feel....

 

 

 

 

So that Grog I made! Wow it so worked!!! I made some giant tiles with crazy faces I call them 'confetti people' will post the pic but too dark already. Anyway I made two, then got scared that it wouldn't work so I made another two out of paper clay knowing those would be fine, dried them for almost a month due to size and thickness and wacked on the glaze in their greenware state and fired them two days ago, kiln cooled and everything groovey! T

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