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Liquid Products
PU Plus

PU Plus

Environmentally friendly water-based polyurethane

PU Plus is a flexible single-pack water-based polyurethane waterproofing and sealing membrane. PU Plus is a fast-drying waterproofing membrane with excellent chemical resistant properties.

  Download Data Sheet

Fields of Application

  • Ideal for waterproofing of terraces, balconies and wet areas
  • Ideal for waterproofing of concrete walkways and planter boxes
  • For internal and external use


  • UV resistant
  • Highly reflective
  • Easy to apply


  • PU Plus forms a tough flexible membrane film which
    eliminates the need for a reinforcing layer. Reinforcement mesh
    is only needed over movement joints
  • Once cured, it can be tiled over using Davco's cement-based or
    two-part adhesive
  • Does not stain tiles or marble
  • Does not require protective screed
  • Can be applied on damp visibly dry surfaces without the fear
    of blistering
  • Environmentally friendly product, does not give off fumes or
    gases which will affect health
  • Because of its non-odour formulation, PU Plus is suitable for
    use in confined areas

Surface preparation

Concrete: All new concrete slabs must be allowed to cure for at least 6 weeks. Old concrete must be cleaned with a strong commercial grade detergent or degreaser, then all residue thoroughly washed off
with clean water. Allow the surface to dry for at least 25 hours.

Render: New rendered surfaces must be allowed to cure for at least 7 days.

Lightweight blocks: Prime the surface with Davco Primer prior to applying PU Plus.

Metal surfaces: All metal surfaces must be totally free of rust. Prime metal surfaces with etching primer.

Cracks: Hairline cracks up to 1 mm wide, which experience no movement, may be duly filled with PU Plus before applying
another layer over the area to be waterproofed. Structural cracks which experience movement must be filled with Chrysoseal MC and a polypropylene tape securely placed over the crack. PU Plus should then be applied over the area and on the tape and allowed to cure.

Drain application: Treat the inside and around the drain with a separate layer of PU Plus before proceeding with the actual application of the whole surface area.

  • Do not allow the product to freeze.
  • Do not apply if the temperature is in excess of 45°C
    or less than 5°C.
  • Delay external application when inclement weather
    is imminent.
  • Do not thin the liquid. It is supplied ready for use.
    For other uses or the use of PU Plus over substrates/situations
    not mentioned, please contact the manufacturer.

(Further information available on the data sheet)


Technical Data

Appearance Thick pasty liquid
Solid Content 60 - 70%
Elongation at Break 380%
Tensile Strength 3 N/mm2
Adhesion to Concrete 1,03 N/mm2
Shore Hardness 85
Cure Time 4 - 6 hours
Touch Dry at 30°C 1 hour 30 min

Specifications are subject to change without notification. Results shown are typical but reflect test procedures used. Actual field performance will depend on installation methods and site conditions.


Spread the PU Plus onto the substrate using a lambs wool roller or brush. Apply in a thin continuous layer over the area to be waterproofed. Allow 1 to 2 hours between each coat. Recommended coverage: 1,5 litres/m2 at 1 mm thick in minimum two coats.


One pail covers approximately 13 m2 at 1 mm thick depending
upon site conditions. 250 micron dry film i.e. 2,2 m2 / litre.


No mixing is required when using PU Plus.


20 litre pail.

Download Data Sheet

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