Repairing Rubber the refrigerator door does not close properly

Assalamu Alaikum, in this video, it has been told about the rubber of the fridge that if the rubber of the fridge is pressed or raised in some places or it is cut off or torn from somewhere, then how is it repaired if it is not sticky? How to repair it, how to soften it is detailed

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allha kamyab kry ap ko