0.01-0.10(cm3)/1.61km, about 3-5 times that of rubber.
(4)
has good machining performance. (Turning, milling, grinding, drilling can be)
Oil resistance. Polyurethane sheet is a strong polar polymer compounds, and non-polar mineral oil affinity is small, in the fuel oil and mechanical oil is almost not eroded.
(5)
good oxygen and ozone resistance.
(6)
excellent vibration absorption performance, can do vibration damping, cushioning. In the mold manufacturing industry, alternative rubber and spring.
(7)
has good low temperature performance.
radiation resistance performance. Polyurethane resistance to high-energy rays is very good, in the 10-10 G radiation dose still has a satisfactory performance
(8)
has good machining performance. (Turning, milling, grinding, drilling can be)