NEOPRENE 12MM x 7 metres per roll 

Maintains a water tight seal at a minimum of 25% compression
Good resistance to weathering, aging, fungi and most chemicals and ultra violet light.
Remains flexible at a wide range of operating temperatures.
Dimensionally stable. Will not ooze, run or drip.
Easily removable liner minimises stretching during installation.
Good temperature resistance
Custom widths available