I aquired my first non-aluminum block mold, a Hoch nose pour design.
Took a bit of experimenting to get things rolling, but I did manage to get a good batch of well filled cast.
Problem I'm having is when seperating the sprue, I'm not always getting a smooth flat cut that I'm accustom to, but some pitting.
I'm giving the mold a 10 second count after sprue hazes before seperating and have applied Bull plate lub to both mold face and sprue plate.
Do I need to wait longer?
Is it safe to use a damp sponge to accelerate sprue plate cool down without rish of damaging mold?
Thanks