Is there such a thing as rubber welding or similar? I have a window rubber that has come apart, clean break, must be where it was put together at factory as the other rubber you can see the same join line.

Or is there a special glue that someone can recommend?

Thanks.

I haventy tried it, but everytime the question comes up the answer is superglue, apparently it is the one thing it is good for

yeah ive fixed many a rubber door/window etc with black silastic gasket stuff..
a bit tricky but works n holds on like a treat..
just make sure you clean up the 'to be gooped area' with thinners so it will be nice n clean yeah..
cheers paul

Use Loctite 406-haven't found any rubber yet it won't hold together forever.Make sure the first contact the 2 pieces have is where you want them to be,and keep fingers out of the way.

Yep. Loctite 406 is the go. If youve got the rubber out then get something that fits in the panel and glass grooves, bundles of tongue depressors or lollipop sticks work well. Wrap them in sticky tape. super glue doesn't stick much to sticky tape or celophane. Line the two ends up with a gap with the sticks in the groove. Apply 406 and slide together along the sticks and hold together till glue sets. (About 2 milliseconds if it's not in the right place.)