4040For 4 mm grooves
Weldable gasket AC4040
Available in rolls of 5 m and 200 m.
Groove welding seals are used for changing old and worn out gaskets in primarily wooden windows and doors.
Note: Welding seals in connections is an older method that is on the way out. You can benefit from using a grooved weatherstrip with cord which do not need to be welded. See the section with grooved weatherstrips.
PRIMO has a wide selection of different gaskets and has seals for almost every purpose. Most of our gaskets are made of TPE, which is a PVC-free material that is very suitable for outdoor use and that have a long lifetime without deforming.
When installing welding mouldings, the profile is cut at 45 degrees and welded together. Then, the moulding is installed in the corner and pressed into the groove. Possibly using our in-rollers that you can find under accessories for gasket clamp profiles.
Be aware that the seals are not completely pressed together when the door or window is closed as over time, they will lose their ability to recoil and seal.