CSM
Chlorosulfonated PE (Hypalon)
Glass Transition (Tg)
-30 °C
Melting Point (Tm)
—
Density
1.10–1.28 g/cm³
CAS Number
68037-39-8
Recycling Code
None
Category
Elastomer
Repeat Unit
–[CH₂–CH₂]ₓ–[CH₂–CHCl]ᵧ–[CH₂–CH(SO₂Cl)]𝑧–
The repeating unit is the smallest structural fragment whose repetition builds the whole chain. Subscripts show the relative share of each unit in copolymers.
Key Properties
Excellent ozone, weather, acid and flame resistance with good colour stability.
Applications
Roofing membranes, inflatable boats, chemical hose linings.