[Jewelry making - Article 00465] - Re: [Orchid] Delft Clay Goes Crumbly etc.

[Martin Niemeijer]

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hello Tim,

    Petrobond is the same as Delft clay But ask for the roughness of the
    grain. Delft clay consists very fine sand. 

    A long time ago I have done casting in Cement mixed with oil. It is
    very messy but it was cheap ( I did not know of the Delft clay). Just
    use cement and motor oil. Mix the oil into the cement, until it is
    just bondet. Ratio I do not now just make thick clay. And use a lot of
    talcum on your model. 

Greetings
Matin Niemeijer 


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