ExtrudaSeal W804 Wedge Gasket - 4m

These gaskets are frequently paired, with 'E' Gaskets used on one side of the frame, and the Wedge Gasket on the reverse. They create a watertight and draught-proof seal between a window or door frame, and it's double-glazed unit or infill panel. Replacing gaskets is quick and easy and requires minimal tools, and doing so can stop water ingress, eliminate draughts and noise, improve energy efficiency, safety and security. As their name suggests, Wedge gaskets are wedge shaped, so they can simply push into place between frame and double-glazed unit. They feature a rib that hooks onto the frame to keep it in place. Wedge gaskets are designed for easy fitting, and also easy removal, should a unit need to be changed, or 'E' gaskets replaced on the other side. 'E' Gaskets get their name from their profile, which can resemble the letter E, and are also referred to as Fir Tree gaskets because they resemble the downward slopping branches of a fir tree. A mushroom extrusion that runs along these gaskets is pushed tightly into a groove in the profile. Then under compression against the double-glazed unit, the branches of the fir tree create multiple seals. Made from a Thermoplastic Elastomers (TPE) material, a blend of plastic and elastic polymer. So they're durable, thermally efficient, with a core of polypropelene (PP), or PVC nitrile, to resist overstretch and expansion.