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annbclay

Absorption And Outdoor Sculpture

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I'm looking into a new clay body and I'm interested in knowing what is considered the maximum absorption rate outdoor work can tolerate. I've always considered it to be no more than 2% is that correct?

Ann B

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Absorbtion rates are also an "it depends" situation.

 

From what I have read, you either want the clay to be entirely or nearly entirely vitrified so it will be impervious to water, or a somewhat porous body which will absorb then drain off water or even allow for some expansion of freezing water in the clay itself. (This is why bricks last so long.)

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Not too long ago, someone had a similar question regarding glazing outdoor sculpture, and absortion came up, but I can't remember the post title... I've searched, but I can't find it. I think Marcia Selsor was one of the responders, and the replies had some good answers.

Maybe one of the veterans with a better memory than I can find this post for you, it might be helpful.

Anyone?

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