Discover more about our new solution for underground works 

    RENOLIT ALKORPRO is the system 5-in-1 

    Fully bonded PVC membrane with special Super Absorbent Polymer


    RENOLIT ALKORPRO system provides an outstanding sealing performance, recommended where concrete structures must be protected against:

    • groundwater

    • contaminants

    • ground gases like radon.

    Self-healing properties of RENOLIT ALKORPRO

    Designed to protect buried structure in all eventualities.

    Suitable for:

    • waterproofing of foundations

    • basements

    • tunnels

    • underground parkings

    • all other concrete constructions below ground level.

    Redundant sealing system

    When these membranes are used in combination with watertight concrete, a combined sealing system with high performance is formed.

    Thanks to the Super Absorbent Polymer, RENOLIT ALKORPRO has self-healing properties.

    In the unlikely event of damage to the membrane during installation, RENOLIT ALKORPRO will prevent any lateral migration of water between the membrane and the concrete.


    The advantages of RENOLIT ALKORPRO

    • Water pressure resistance tested up to 5 bars.

    • Weather resistance. Rainwater proof.

    • Direct application to the stabilized and compacted soil.

    • Three ways of doing the overlaps: adhesive, tape strips or thermal welding.

    • Redundant sealing system as the membrane becomes one with watertight concrete.

    • High flexibility: in case of a crack in the concrete, the membrane will not be affected.

    • Self-compartimentation property: water cannot move.

    • Easy installation with just a minimal number of accessories.


    Efficient system

    Efficient system: 5 products in 1

    • No need of compartimentation joints.

    • No need of injection pipe.

    • No need of protection layers on top.

    Geomembrane versions

    Geomembrane versions

    The RENOLIT ALKORPRO system offers four different membrane versions, all available in thicknesses between 1.2 mm and 2 mm.

      Coloured membrane -C
    The mint green geomembrane is environmentally
    friendly and allows the incorporation of certain
    amounts of reworked material.
    Translucent membrane -T
    The translucency of the membrane improves the
    quality control of the installation by allowing a
    visual control of the overlaps.
    To be installed before the concrete
    pouring of the ground slabs and walls,
    so that the fleece fibres get embedded
    in the fresh concrete.
    Post-applied *
    Can be also installed on the walls
    or ceiling after the concrete pouring
    thanks to the SAP included in the

    * Post applied membranes can also be used as pre-applied for their self healing properties.



    Easy to seal

    Easy to seal 

    The RENOLIT ALKORPRO membrane can be sealed very easily by mastic glue, by thermal welding or by using a RENOLIT ALKORPRO BAND (butyl tape).

    Glued overlap with CEM 805

    More information

    More information


    Fully bonded system for underground structures and basements - Based on the RENOLIT ALKORPLAN technology



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    Information enquiry
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