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Winkler Winjoint Seal

£15.25 (inc VAT) £12.71 (ex VAT)

Winjoint Seal is a high-quality, one-component polyurethane adhesive sealant, specifically designed for floor expansion joints.

The product is classified as F 25HM according to the ISO 11600: 2011 standard.

The reduced VOC emission makes it an environmentally friendly product, formulated in Winkler Research & Development laboratories.

Winjoint Seal offers excellent resistance to oils, fuels, and UV rays, making the product suitable for application in mechanical workshops, garages, and industrial floors and can be applied to both interior and exterior surfaces.

It is highly flexible and remains stable, even at low temperatures and over long periods of time.

Winkler Winjoint Seal

Price: £15.25
Inc. VAT
Price: £12.71
Excl. VAT
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At a Glance

  • Adhesive sealant for floor expansion joints.
  • Environmentally friendly.
  • High degree of resistance to oils, fuels, and UV rays.
  • For interior or exterior use.
  • Quick and easy application.
  • Can be over-painted.
  • Size: 600ml.
  • Colour: Grey.

Surface Preparation

Surfaces to be treated must be free from debris, clean and dry.

Winjoint Seal must adhere only over the two vertical walls of the joint to be treated and not at the bottom, since the adhesion on the three sides, in case of tensile / dilatation movements of the materials, could cause the sealant to break.

With joints ≥ 9 mm to 3 cm wide, it will be necessary to insert Winkler Winjoint Foam (polyethylene kerb) as 3rd joint bottom wall. Its size must exceed 25% compared to the width of the joint.


After carefully preparing the joint as described above, extrude the contents of the bag with a suitable professional gun.

In order to avoid dirtying the edges, we recommend masking the joint with paper tape.

For a better aesthetic effect, we recommend smoothing over the finish with a solution of water and soap.


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

Important Information

Apply Winjoint Seal in environmental conditions that facilitate drying in the shortest possible time. Therefore, do not apply the product on surfaces that are frozen, where an overnight frost or rain is forecast. In any case, the product must be applied at temperatures between + 1°C and + 35°C.

Avoid contact with bitumen, tar, neoprene, EPDM, butyl, or other materials that could release plasticisers and involve colour and adhesion loss, to the sealant.

Winjoint Seal will not adhere to PE, PTFE, and PP.


The product in its undamaged packaging, when stored in a dry and protected place, has a 12-month shelf life. Not frost-proof. 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.