Paper Clay Slip for Casting

[Ben xyz]

Curious whether the option of casting w/ paper slip is possible (avoiding warping, cracking, etc). Since work may be traveling, weight could become an issue. Would likely buy pre-mixed gallons, perhaps from Laguna Clay. Can fire at bisque (04) to mid (5). Am using a large plaster mold, approx 17"x9". It's part of a sculptural piece, so likely will use paint, instead of glaze, to achieve specific PMS colors after casting. Experience?

[olaff40]

On 5/10/2024 at 3:49 AM, Ben xyz said:

Curious whether the option of casting w/ paper slip is possible (avoiding warping, cracking, etc). Since work may be traveling, weight could become an issue. Would likely buy pre-mixed gallons, perhaps from Laguna Clay. Can fire at bisque (04) to mid (5). Am using a large plaster mold, approx 17"x9". It's part of a sculptural piece, so likely will use paint, instead of glaze, to achieve specific PMS colors after casting. Experience?

 

Hello @Ben xyz

Using paper clay slip for casting can help avoid issues like warping and cracking, especially if you need your project to be lightweight for travel. Pre mixed options, such as those from Laguna Clay, make the process easier. With your firing range and large plaster mold, paper clay slip should work well. Since you're planning to paint the sculpture instead of using glaze, paper clay provides a suitable surface. While I don't have direct experience, many artists have found success with this method. It's wise to do some small-scale tests and perhaps consult experienced ceramicists or suppliers for specific advice.