how I make sand core's

[dallen]

you can make molds with cement bonded sand also you just have to make sure you don't have to much water in them, but the process is usually reserved for extremely large molds that need the strength of the cement.

Me I'll stick with the SS and sand to make cores with, I've even done complete molds with it because I didn't want to make a special flask so I use a 3 gallon bucket to mold in then sunk it in a cardboard box full of sand to keep it from floating.