Hereâs what you can expect: 1  First, a speculum is placed in the vagina, just like for a Pap. The cervix is cleaned off with a soap solution.Then a soft flexible tube, thinner than the inside of a pen, is passed into the uterus. 2  The speculum is removed and the ultrasound probe inserted.
You will likely have similar results. Closed cell polyurethane foam will only absorb water if the individual cells are damaged, which CAN happen over time, but the causes of wet foam in boats isn't all that clear. It is likely that freeze cycles will gradually cause foam deterioration.
Open Cell Insulation. Open-cell polyurethane spray foam, on the other hand, is usually found in densities ranging from 0.4 to 1.2 lbs./ft3. One of the advantages that these lower densities provide is a more economical yield, since foam density is directly related to yield (lower density = higher yield).losed Cell vs Open Cell Foam Insulation. Before we can go into that we need to start by saying that in the foam insulation industry there are usually two types of foam insulation being used, open-cell and closed-cell.