Sikalastic-854R HE is a liquid applied roof waterproofing membrane based on a hybrid polyurea resin, consists of a polyurea resin, bi-component, elastomeric without internal protection layer, which once polymerised conforms a jointless elastic lining, in form of a layer completely bonded to the support (concrete, mortar, ceramic, steel and other metals and XPS). Depending on support condition other type of primer may be advisable.

The minimum thickness of the Sikalastic-854R HE has to be 1.9 mm.