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  1. Porosity and really bad casts. Is it investment or something else.

    Hi. Still struggling here.
    Attached are photos of my issues
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    I'll try to be brief. Sterling silver metal. 50% new, 50% used.
    3d print of Jamghe castable resin. Also tried...
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    Sorry, forgot to mention the silver casting temp...

    Sorry, forgot to mention the silver casting temp is 990 C and the flask temp is 590 C. Metal melted in a furnace and graphite crucible. Vacuum cast as mentioned before.
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    Thanks for your replies and sorry for the lack of...

    Thanks for your replies and sorry for the lack of info.

    I'm using plasticast, a perforated flask, cast in a vacuum system. Distilled water, 24-26 C. Mixed as recommended. The flask sat for about...
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    Flashing, I think, in a sterling cast

    Hi think it's called flashing. What I'm getting is the filling-in of detail and thin slivers of silver in areas. The pendant I'm trying is a celtic design and I've found that in between the detail it...
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    Nope. The wax remained violet after curing. I've...

    Nope. The wax remained violet after curing. I've asked them this question but no answer as yet. It was maybe a little darker. Which of the Bluecast resins would you suggest?
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    Thanks, everyone. I'm planning on doing a cast of...

    Thanks, everyone. I'm planning on doing a cast of both a resin piece and a wax piece, tomorrow hopefully. I thought if I do them together and the wax one is good then I can narrow it down to the...
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    It was washed by hand, blow dried, and cured in...

    It was washed by hand, blow dried, and cured in an Anycubic Wash and Cure unit for about 40 minutes.
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    Oops. Should have included that.

    I'm using Phrozen Wax Like Violet.
    The model is just a plain 3 mm band ring.
    Flask is 3 1/2 x 4 inches
    Schedule is -
    From room temp quickly up to 148 C (298 F). Hold 1.5 hours.
    Ramp over 1.5...
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    Cast silver is porous

    Hi. I'm new to casting so I'm just trying to get up to speed.
    I'm using a Plasticast, A Kaya Cast vacuum system, an electric furnace that has a graphite crucible, and I'm trying to cast sterling...
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