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Casting without porosity


#1

Dear Colleagues,

Can we have casting without porosity in silver & 10K,14K, 18K gold?

Regards
Umesh


#2

Hi Umesh,

No pin holes and a good surface for sterling, 90/10 bronze, 80/20
bell metal and plenty of good ingots at home.

Commercially sterling, and silicon bronze, no pin holes and a
surface just needing a polish. I’m aiming to get 18k gold done before
the end of the year, I’ll let you know if the casting house is up to
standard with this.

Regards Charles A.


#3
Can we have casting without porosity in silver & 10K,14K, 18K
gold? 

Yes. Make sure you’re mixing your investment exactly as directed. It
should seem almost too thick. Too watery investment will cause
porosity in your cast metal. I don’t know why.