Polyprufe® BSW should be adhered with the film side to
the substrate. On vertical surfaces, the membrane is to be
mechanically fastened to the top of the structure first before
applying subsequent layers. Overlaps should be staggered
in order to prevent a bulge forming, and all succeeding layers
must be clean and dry before application in order to ensure a
strong, watertight bond.
The substrate should be mechanically sound and not move
during the pour. The substrate should also be smooth with no
gaps or voids. Any penetrations should be grouted in order to
ensure stability. Before the pour, ensure that all plastic release
liners are removed. Ensure that no sharp objects are used to
consolidate the concrete in order to prevent damage to the
membrane.