Hi folks,
I’ve made a few items in cold cast metal- I recalled a tip about powdering the mould with the metal powder before pouring. I was very very impressed with this, everything looks great- BUT I keep getting an issue, where I’m pouring, be it fast or slow, I perhaps 50% of the time get a mark where the metal powder washes away and therefore when I polish it up I get an area that isn’t half as shiny as the rest 🙁
Ive fiddled around with a few ideas, but I’m stumped- the metal I’m using is brass powder, the moulds are silicoln and the resin is polyurethane.
Thanks so much for any thoughts.