uPVC window seals are robust, durable and usually long-lasting. However, they can’t last forever and factors such as improper installation, thermal expansion and physical damage may cause the gasket to deteriorate beyond repair. These causes may stretch the section causing it to split or tear. This damages the integrity of the sealing bulb or flipper, resulting in potential issues with air and water ingress. The rubber gasket can also be compressed. This enables it to cover the many different gap seals required to suit the Upvc systems used in the double glazing industry over the last two to three decades, which are now obsolete. The unique flipper protruding upstand also provides another weather seal to the door or window to increase the water tight seal. Did you know?These are 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. Replacing the worn and damaged gasket seal will restore the weather tightness of the bottom threshold seal and will help to prevent water and weather ingress. The gasket is pushed in and inserted into the purpose made groove and will require it feeding into the slot Rehau used this flipper rubber seal on all their windows and doors and insisted that this created a seal to achieve a high performance weather seal.

The Gasket is sold in 6mtr increments which is usually enough to do one standard sized door or window openerNo adhesive is required to fit, the gasket is designed to simply push in to a groove located around a sash or frame. Fitting new gaskets can solve many problems, draughty and leaking windows are one of the many symptoms of a failing gasket. Over the years many gaskets will lose their flexibility, start to shrink and even disintegrate Wedge Gaskets: Often used in double-glazed windows, wedge gaskets are designed to hold the glass in place within the frame. They have a unique shape that, when pressed into the gap between the glass and frame, exerts pressure to keep the glass firmly secured. 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. How to get the right gasket

The gaskets are sold in 6 metre increment quantities and is in a continuous length. 6 metres will generally go round either the opening door sash or alternatively the outer frame of a standard size Upvc door system. 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. This EPDM rubber flipper type gasket can be used to replace the worn out or damaged rubber gaskets commonly found on most types of Upvc window and door profiles once used. The gasket pushes snugly into the groove of the profile system and when fitted correctly it will remain in place for years of trouble-free installation. The new rubber gasket provides a water tight and draught proof seal to Upvc windows and doors. The gasket comes with a silicone lubricant on it which enables it to slide into the Upvc aperture and maintain its flexibility whilst stored Brush Seals: These consist of a strip of bristles or a brush-like material, often used in sliding windows or doors. They allow for smooth operation while providing a barrier to dust and drafts.Wedge gaskets – used predominantly to seal the frames of doors and windows to their glass – must be manufactured to a high quality to protect against weather conditions. The gaskets come with different shape options and vary from frame to frame, so it is important to identify your original shape primarily.

Please note: When buying multiples of 1m, the gasket will then be sent as one continuous length and not several 1m lengths where possible.This was the nearest profile to the existing seal fitted in the door frame. All the measurments show it to be the same profile though the long flipper seal is more vertical when fitted which is good as it provides a very slightly tighter seal when the door is closed. When replacing Wedge gaskets, it's important that you only replace one piece at a time, so that the beading on the other side and the glazing remain secure. Start by levering out the end of a seal, taking care that you don't damage the frame. Once the end if free, you should be able to remove the rest of the seal by hand.