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Chris Campbell

Member Since 07 Apr 2010
Offline Last Active Yesterday, 09:09 PM
*****

Posts I've Made

In Topic: Mason Stains As A Wash

15 September 2014 - 10:09 AM

Under glazes also work well for this.

In Topic: I Want Porcelain!

14 September 2014 - 07:24 PM

Usually I would just shut up and let it go ... but I believe you sincerely want to be able to cast or throw beautifully made porcelain.

 

This is going to be very difficult in a studio situation where you are the only one doing this.

For mold making success you need to learn from someone who knows mold making and slip casting.

For porcelain work you need to learn with someone who understands its challenges and is willing to fire specific profiles for porcelain to ensure a lower failure rate.

 

Make sure your instructor is willing to walk you down this path.

You don't want to find out half way through that you are on your own.


In Topic: I Want Porcelain!

14 September 2014 - 05:14 PM

You have good taste!
The pieces you link to in your postings are excellent examples of fine craftsmanship ... years of practice.
The teapot looks like a cast piece ... Made in an original mold designed by the potter.
Not saying you can't do it, but how long do you have to get your degree?

Laguna's porcelain 'Frost' is a Cone 6 body that is very white, smooth ... and somewhat easier to use ...
but only relative to other porcelains. As a whole, porcelains are more demanding clay bodies. Because they have no grog they tend to slump and crack during firing. If you can't stand imperfections, porcelain will make you crazy!

Best of luck.

In Topic: How Long Do Plaster Molds Last?

13 September 2014 - 01:57 PM

I am not in any way an expert but I do have books on mold making ...

 

Andrew Martin's book "The Essential Guide to Mold Making and Slip Casting" says bone dry molds do not cast well so you should dampen them slightly either with a quick dip in water or if they are too large for that, wiping with a saturated sponge.


In Topic: Have You Ever Done A Crazy Experiment Just To See What Happens?

12 September 2014 - 07:07 PM

Been there !

Bigger balloons did not shrink as well and the pots cracked from shrinkage no matter how slowly I dried them ... still don't know why as there was plenty of air space at the top.