What difference does the density of the foam make?
I understand that the foam is supposed to have a certain density, namely 80-100g per quart.
I'm curious: What happens to the aircrete if your foam is too dense or not dense enough?
If your foam is coming out at the incorrect density, what can be done about it?
Does the psi have any direct relationship to the density of the foam? (If not, then why does the psi matter?)