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.
1 Polyols â the binder/bulk ingredient. Usually composed of petroleum oil-derived ingredients, but may also include botanical sources like soy or castor beans.  Diisocyanates â the reactive ingredient. Reacts with the polyols and blowing agent to produce a flexible polyurethane foam. The most commonly used sources are MDI and TDI, which alone in raw forms can cause respiratory and dermal sensitization and may be carcinogenic.