| 3M developed that material (the Type B) for mopping up oil spills on water (seriously).
If you have a quantity of oil spilled on water it (the oil) will float on the surface of the water. The 3M material (in the shape of a sausage) is used to float on the surface of the water and absorb the oil.
The reason it floats on the surface of the water is because it repels the water. It is very difficult to sink a type b thinsulate. That quality makes it good for retaining its insulation characteristics when wet.
Bob |