Below you can find the demonstration video (in English). For other languages (French, Spanish, German and Italian) click here.
By eliminating sheath slippage, Uni Core allows a climber/caver to safely pass the damaged section of the rope should the sheath be cut. Where the sheath of normal climbing ropes frays when cut, Uni Core allows temporary cutting of rope lengths without melting the ends.
Uni Core also helps to reduce shrinkage in water by up to 50%, all without affecting the ease of use and suppleness of the climbing rope.
Beal has implemented this technology in a whole new range of Uni Core ropes for caving (Spelenium) and climbing (Access, WallMaster, WallSchool) .
Mammut recently developed a similiar technology: They mechanically link the outer sheath to the inner core using the so-called „quick braid technology”, giving the same advantages. (no need to melt the ends after cutting, no sheat slippage or shrinking and enhanced safety)
More info can be found on their website: http://www.mammut.ch/en/ropes_reep_procords.html