Patented water swellable plug for a perfect seal of formwork spacers

The Sealing Plug is a revolutionary solution for sealing structural concrete formwork spacers. Sealing Plugs comprise a water-swellable rubber cap and solid core. The cap prevents water infiltrating the bar and the core provides a mechanical anchor under water pressures up to 6 bar.

This water-activated, self-expanding sealing solution is one of our most innovative – it guarantees a perfect seal, combating moisture infiltration with a single hammer blow! 

Expansion Capacity SEALING PLUG

Product Colour Bag Qty Pallet Qty
SEALING PLUGS 22mm* Blue 100 18,000
SEALING PLUGS 24mm Blue 100 9,000
SEALING PLUGS 26mm* Blue 100 9,000
SEALING PLUGS 32mm* Blue 100 9,000
SEALING PLUGS 34mm Blue 100 9,000

* UK Stock sizes

Installation in 3 steps


The Sealing Plug fits in spacers with an inner diameter of 22, 24 or 26mm and can be customized to your specific formwork.

Position the Sealing Plug in the formwork spacer

Hammer the Sealing Plug into the formwork spacer

No additional finishing or

after-treatment required

Download tech. sheet


Product Catalogue

Download our latest catalogue here, or call +44 (0) 1270 90 20 20 to request a copy to be sent to you.

Contact Us

(Mon-Fri 8am - 5pm)

Sandbach: +44 (0) 1270 902 020

Basingstoke: +44 (0) 1189 819 522

Roosky: +353 (0) 71 9638 796


Why Euro Accessories?

Many products subject to:


CE MARKED & BS: 7973.


Plastic Spacers manufactured in our own UK factory for ultimate quality control.


Fast and reliable deliveries throughout Europe.

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