Winkler One - Liquid Roof Coating

From £139.67 (inc VAT) £116.39 (ex VAT)

Winkler One is the first and only liquid roof coating in the world that can be applied on wet surfaces and in extreme temperatures (0°C up to 45°C). Highly effective, it creates a waterproof membrane providing long-lasting protection to roofing substrates.

It is solvent-free, requires no primer, is breathable and rainproof after just 2 hours at 20°C and 5 hours at 0°C.  


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Winkler One - Liquid Roof Coating

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At a Glance

  • Waterproof liquid roof coating can be applied onto wet surfaces and in extreme temperatures (0°C up to 45°C).
  • Colour: Grey (white and red available as a special order item, please contact us for further details).
  • Solvent-free.
  • Ready to use formula.
  • Sizes: 5kg / 20kg.

Surface Preparation

  • Thoroughly clean the substrate to be treated to remove dirt, dust, loose materials and any form of oil or grease before use.
  • Fill any holes (from 2 to 20mm) in the surface with Winkler Pre-One, a quick-setting premixed product that can also be applied at low temperatures (0°C) and in humid conditions.
  • Allow the Pre-One formulation to dry for at least 12 hours before applying Winkler One.
  • Level floors with irregularities (from 1 to 20mm) using Winlivel Rapid, a quick-drying self-levelling compound.
  • To make a new screed, use Winplan 370, a quick-drying screed or Winplan Pro, a quick-drying screed with low water absorption.
  • For applications over modified bituminous membranes, a period of at least 180 days of oxidation is needed.


  • The Winkler One product is ready to use so, DO NOT dilute.
  • A primer is not required.
  • Mix the product thoroughly before use.
  • Apply with a short-pile roller, flat brush, metal spatula or airless spray gun (Larius series: Zeus, Dragon, Thor).

Suitable For Use On

  • Flat roofs.
  • Recovering metal roofs.
  • Balconies or decks.
  • Areas with moisture damage (including those with foot traffic).
  • Concrete.
  • Masonry.
  • Fibre-cement boards.
  • Ceramic tiled surfaces.
  • Asphalt shingles.
  • Modified bituminous membranes.
  • Plywood.
  • Wood.
  • Metal.

The product, when fully cured, is resistant to wear by high volume footfall and, thanks to its mechanical resistance, on rigid substrates (concrete and tiles), allows for the placement of chairs and tables.


Without Wintechno Mat

1.5 kg/m²  collective consumption, corresponding to final dry thickness of 1 mm

With Wintechno Mat reinforcement

1.7 kg/m2 collective consumption above and below Wintechno Mat.


This product has a shelf life of 12 months when stored in a dry, protected place with its packaging intact. It is not frost-proof and must be stored at temperatures between + 5°C and + 35°C.



Courier Delivery

Max 2 items

Up to 3 working days.

Starting from £15.00.

Palletised Delivery

For 3 or more items

5-7 working days.

Starting from £46.00 per pallet.

You can view our detailed delivery charges and services here.