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Hi, I am about to cast an 18k rose gold ring from a formlabs 3d printed model in castable resin. I am confused about the burnout process. Please can somebody suggest me about an specific burnout process to follow? Thank you, Lorena

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You can find the recommended process here or on the Formlabs website

Make sure you have post cured the model first though in an appropriate chamber.

Best, James

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Depend of the ceramic of the mold .

Are you usign plaster ? with silica ou something ?

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Thanks for your reply. I am using Kerr satin cast 20, is a crystalline silica based investment.

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Thanks for your reply James, I have looked at the chart but the temperature times are not clear to me. Please, could you check if the above specific times are ok?: I have to cast a small flask cointaining just 1 ring. 167 C ____ insert flask 177C ____ hold for 30 minutes 732 C ____ hold for 3 hours 482 C ____ hold for 1 hour and cast Can I add a middle temprature between 177C and 732C? thank you, Lorena

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Hi Lorena

There is a good tutorial with technical details and pictures form Formlabs.
https://formlabs.com/support/materials/using-castable-resin/

Hope I could help you.
All the best Dario

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Thank you very much for your advice. I will check it our. Lorena