Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
In order to be welded, the substrates must be chemically compatible and have similar melting temperatures. Chemically compatible means that the molecular structures are similar, for example, a non-polar polymer (polypropylene or polyethylene) will not weld to a polar polymer (polycarbonate or acrylic).
