The ASKER Durometer Type F for much softer specimens (low hardness) gives accurate readings as it features a larger indentor and pressure foot.The durometer exclusively for various foam materials such as urethane foam, sponge, etc.
There is no need to press the durometer into the specimen, but just to place it onto the specimen. As it is soft, the weight of the durometer constitutes the pressure to the specimen.
The pressure foot in contact with a specimen is 80mm in diameter, wide enough to offer a stable measurement by placing it onto the specimen.