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Winkler Winseal 280ml

£9.60 (inc VAT) £8.00 (ex VAT)

The Winkler Winseal product is a ready to use, non-drip mastic specifically designed for sealing roofs, ponds, gutters, chimneys, ventilation ducts, and on vertical and horizontal joints. 


Winkler Winseal 280ml

Price: £9.60
Inc. VAT
Price: £8.00
Excl. VAT
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At a Glance

  • Ready to use formula.
  • Remains soft even after the total evaporation of its solvent.
  • Non-drip.
  • Adheres underwater.
  • Size: 280ml cartridge.

Surface Preparation

Clean surfaces thoroughly before use to ensure they are free from dust, debris, oils, foreign or non-stick substances. 


Sealing of roofs, ponds, water mirrors and particular points, such as gutters, chimneys, ventilation ducts, lighting points, finishing of vertical and horizontal joints, repairs (emergency), protection against corrosion. 

Winseal adheres to most of the supports used in the civil engineering sector, even wet, provided they are intact and clean: bricks, cement concrete (with the exception of renovation plaster), concrete blocks, PVC, PP, PE, PUR, EPS, metals, glass, bituminous coating, tin coating, etc.

Important Information

Do not add additives.
Do not use if the packaging is damaged.
Do not add water and/or solvents.


Adhesion: 310ml/m² (about 400g/m²).
As filling: 310ml (about 400g) for 10m (0.5 x 0.5 cm kerb).
For thicknesses from 1.5 to 2 mm: 3.85ml/m² (approx. 5kg/m²).


Winkler Winseal has a storage life of more than 3 years from the date of production if stored in its original packaging in a dry, cool and frost-free environment. Store at temperatures between + 5°C and +35°C.



Courier Delivery


Winkler accessories.


Up to 3 working days.


£5.00 (ex VAT) for mainland UK deliveries.

£12.75 (ex VAT) for Highlands & Islands.

£18.25 (ex VAT) for Northern Ireland, Isle of Man, Isle of Scilly.

£23.25 (ex VAT) for Isle of Wight.

Free delivery is offered on orders over £250 + VAT to UK mainland postcodes only.

You can view our detailed delivery charges and services here.