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.
There is a wide variety of foams that are used in the bedding industry today, and all of them perform certain functions well. Whether they're used in mattresses, mattress toppers, pillows, or other bedding components, foams perform the necessary function of providing both comfort and support.High Resiliency (HR) foam is the highest grade of polyurethane foam and weighs 2.5 lbs or more per cubic foot.These foams contour to the body exceptionally well, and their cell structure enables extreme elasticity and optimal supporting force.he basic difference between regular poly foams and HR foams is found in the chemicals used to make the foam. HR foams use higher quality chemicals that contribute to the elasticity and longer comfort life.