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Winkler Skermo Terrazze 5 litre

£398.26 (inc VAT) £331.88 (ex VAT)

Skermo Terrazze is a transparent water repellent for waterproofing treatment of balconies, terraces and Grès Porcelain stoneware.

It is a solvent-free, non-film forming clear penetrating sealer with outstanding, long-lasting waterproofing capabilities (10 years). Its water-resistant action prevents the emerging of efflorescence and inhibits the growth of moss, algae, lichens, etc.

Skermo Terrazze is a 100% active material, able to penetrate deep into the substrate with superior stability to elevated pH (max 14 pH), thus being very effective in applications located nearby seawater.


Winkler Skermo Terrazze 5 litre

Price: £398.26
Inc. VAT
Price: £331.88
Excl. VAT
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At a Glance

  • Ready to use formula.
  • Only requires one coat.
  • 100% active material.
  • 10-year guarantee.
  • Can also be used on vertical concrete or masonry structures.
  • Zero VOC content. 
  • Size: 5 litre.

Surface Preparation

Clean the substrate surface thoroughly in order to eliminate dirt, dust, loose materials or debris, and any form of oil or grease.

Remove any eventual spots shown on tiles by using a neutral detergent.

Restore any damaged grout line by using Winstucco Flex Thin* (for grout lines until 2 mm wide) or Winstucco Flex Medium* (for grout lines from 2mm to 12mm wide).

Apply the product on dry or slightly damp surface, not wet.


Apply Skermo Terrazze liberally with a brush or roller to the tiled surface ensuring the grouted area is adequately covered too. 

15 minutes after the application remove any remaining traces of the product using a clean rag.

Protect from water for at least 18 hours after the product is applied. After such period, the treated surface is walkable again.

Skermoa Terrazze can be used on the following surfaces:

  • Ceramic
  • Porcelain grès
  • Stoneware
  • Terracotta Floors
  • Clinker
  • Concrete
  • Any other cementitious floor

Important Information

Apply the product in conditions that allow curing in the fastest time possible. We strongly recommend performing a preliminary mock-up application on a small portion of the substrate, in order to observe the colour/chromatic stability of the surface. Protect from water for at least 18 hours after the product is applied. Apply at temperatures between +5°C and +35°C.


On tiled surfaces - 15m²/litre.
On concrete walls - 5m²/litre.

Consumption rate may vary depending on the porosity of the substrate.


The product, kept in its unopened and undamaged packaging, has an 18-month shelf life. Store between +5ºC and +35ºC.


Winstucco Flex is a special order item, please contact us to order this product.

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.