Preprufe 300R ja 160R

Pre-applied waterproofing membranes for slab foundations and sub-constructions water barrier


  • Bond completely to poured concrete; that is why water ingress tracking between a membrane and concrete is avoided and soils flash does not effect membrane.
  • Forms a barrier against water, moisture and gas between stucture and the surrounding ground.
  • BBA sertified for hydroinsulation in basements of grades 2, 3 and 4 according to British Standard BS 8192:1990.
  • Solar reflective – reduces temperature forces.
  • Simple and quick to install, no primers or fillets required.
  • Complete adhesive bond to finishers and units.
  • Can be applied to permanent formwork, allows to build under restricted conditions.
  • Protection is not required – a membrane can be trafficked immediately after application.
  • Falls do not activate adhesive bond prematurely.
  • Waterproof system: non-reliant to hydro pressure.
  • Unaffected by freeze/thaw and wet/dry cycling.
  • Chemical resistant in all types of soils and waters – protects structure against salt or sulphate attacks.
  • For ensuring water stops both in movement and working joints, a range of Grace product include active and passive joint strips.

In the drawing:

  1. Bituthene LM liquid membrane
  2. Waterproof layer
  3. Preprufe 300R/160R membrane adhesive surface
  4. Framework
  5. Self-adhered laps

Preprufe®300R & 160R membranes are composite materials, comprising thick HDPE film, a pressure sensitive adhesive and weather resistant protective film. Unlike conventional membranes, which are vulnerable to water ingress tracking in joints and penetrations, Preprufe® R membrane adhesive bond to concrete excludes any water ingress into the structure.

The Preprufe® R system comprises:

  • Preprufe® 300R for use below large weight load foundation slabs. Allows heavy reinforcement.
  • Preprufe® 160R is the thinner grade membrane for applications at places with minor load capacity or in case of permanent formwork.
  • Preprufe® LT tape for cut edges, roll ends, penetrations and detailing (in temperatures from -40 °C to +300 °C)
  • Preprufe® HC tape is similar to the previous one, for use in hot climate (over +100 °C)
  • Bituthene® LM liquid membrane is used for sealing around penetrations, etc

Preprufe®300R & 160R membranes are applied to smooth prepared concrete substrate or well-rolled and compacted sand; in case of vertical installation, to permanent formwork or adjoining structures. Preprufe® membrane bonds to cast concrete and forms continious insulation layer around the structure. Preprufe® R membrane can be turned up against the internal surface of foundation slab temporary formwok. If during concrete pouring, at the either sides of walls temporary formwork is used, then it is necessary to insulate the wall after taking down the formwork with self-adhesive membrane Bituthene® 8000.